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Business Analyst => Business Analyst Concepts Discussion => Topic started by: MadhaviL on May 19, 2016, 11:56:08 am

Title: use case actors
Post by: MadhaviL on May 19, 2016, 11:56:08 am
Can Anyone explain me Who are Use Case Actors i.e., Primary Use case Actors Vs Secondary Use case Actors
Title: Re: use case actors
Post by: MadhaviL on May 19, 2016, 09:21:18 pm
The Unified Modeling Language (UML1) defines an Actor (from UseCases) as:

An actor specifies a role played by a user or any other system that interacts with the subject.

Primary Actor: The primary actor of a use case is the stakeholder that calls on the system to deliver one of its services. It has a goal with respect to the system – one that can be satisfied by its operation. The primary actor is often, but not always, the actor who triggers the use case.

 

Supporting Actors: A supporting actor in a use case in an external actor that provides a service to the system under design. It might be a high-speed printer, a web service, or humans that have to do some research and get back to us.

 Now that we are on the same “page”, let’s consider two examples:

A bank loan officer wants to review a loan application from a customer, and part of the process involves a real-time credit rating check.
Use Case Name: Review Loan Application
Primary Actor: Loan Officer
Secondary Actors: Credit Rating System
A Human Resources manager wants to change the job code of an employee, and as part of the process, automatically notify several other departments within the company of the change.
Use Case Name: Maintain Job Code
Primary Actor: Human Resources Manager
Secondary Actors: None

 

The first example is quite straight forward; we need to define the Secondary Actor because without the “Credit Rating System” we cannot successfully complete the Use Case. In other words, the goal of the Primary Actor is to successfully complete the Loan Application, but they need the explicit “help” of the Secondary Actor (Credit Rating System) to achieve this goal.

The second example is where people sometimes get confused. Within OUM we would not include the “other departments” as Secondary Actors and therefore not include them on the Use Case diagram for the following reasons:

 

The other departments are not required for the successful completion of the Use Case
We are not expecting any response from the other departments (at least within the bounds of the Use Case under discussion)
Having said that, within the detail of the Use Case Specification Main Success Scenario, we would include something like:

“The system sends a notification to the related department heads (ref. Business Rule BR101)”

Now let’s consider one final example.

A Procurement Manager wants to place a “bid” for some goods using an On-Line Trading Community (B2B version of eBay)

Use Case Name: Create Bid
Primary Actor: Procurement Manager
Secondary Actors: On-Line Trading Community
You might wonder why the Trading Community is listed as a Secondary Actor, i.e. if all we are going to do is place a bid for a specific quantity of goods at a given price and send that off to the Trading Community, then why would the Trading Community need to “assist” in that Use Case?
Well, once again, it comes back to the “User Experience” and how we want to optimize that when we think about our Use Case, and ultimately, when the developer comes to assembling some code.
In this final example, the Procurement Manager cannot successfully complete the “Create Bid” Use Case until they receive an affirmative confirmation back from the Trading Community that the Bid has been accepted. Therefore, the Trading Community must become a Secondary Actor and be referenced both on the Use Case diagram and Use Case Specification.
Title: Re: use case actors
Post by: GiridharanK on May 20, 2016, 11:58:00 am
use case primary actor is 1 who directly interacts with the system.

Ex:  In a point of sale system, a customer walks into a shop, picks the required items and goes to the cashier for payment . here teh customer does not interact with teh system. The cashier cheks the items, cheks the quatity, generates the bill, process teh pmt, etc. The total ineracton with teh system is done by the cahsier. hence is is the primary actor.

Secondary actor here for the same point of sale - may be a database. On purchase the database shall send SMS to the customer mobile.

Database may not be a secondary actor in many of the cases. It may vary on the situation.

Title: Re: use case actors
Post by: RahulH on May 20, 2016, 06:51:57 pm
An Actor is the one who initiates an action with the system. Actors could be anybody from persons who are the users of the system to organization and system too. They are basically initiators of the system.
Primary Actor who initiates the process or action, rest all are secondary actors.
Title: Re: use case actors
Post by: NareshS on May 30, 2016, 11:34:01 am
A primary actor :-
                               acts on the system
                               initiates an interaction with the system
                               uses the system to fulfill his/her goal

A secondary actor :-
                             is acted on/invoked/used by the system
                             helps the system to fulfills its goal
Title: Re: use case actors
Post by: vardhini on December 10, 2016, 08:10:21 pm
Primary Actors: The Actor(s) using the system to achieve a goal.
 The Use Case documents the interactions between the system and the actors to achieve the goal of the primary actor.
 Secondary Actors: Actors that the system needs assistance from to achieve the primary actor's goal.
Title: Re: use case actors
Post by: Ankita on January 15, 2017, 06:20:33 pm
An actor is someone or something that interacts with the system by sending or receiving messages or information to and from the system. There are two types of actors:-
Primary Actors: Primary actors initiate the interaction with the system.
Secondary Actors : Secondary actors do not initiate the interaction with the system but participate in one or more use cases of the system.

Use case actors can be identified by asking a number of questions:

    Who will use the system to support their daily work?
    Who will maintain, administer, or configure the system?
    Who will use the output, information, or reports from the system?
    What systems or services will require information for the system?
    What systems or services will provide information to the system?
Title: Re: use case actors
Post by: 170416102 on April 19, 2017, 06:56:28 pm
Actor: People or systems that provide or receive information from the system. They are among the stakeholders of the system.

Primary Actor: The primary actor of a use case is the stakeholder who stimulate the system and are the initiators of the events.
Supporting Actor: Actor that the system needs assistance from to achieve the primary actor’s goal.
Title: Re: use case actors
Post by: Jaishree Singh on June 20, 2017, 05:19:02 pm
Primary Actor - Primary actors are the one who initiates or perform some action .

Secondary Actor - Secondary actors are the one who support system action .

Eg :   customer is making payment through online
 
          Here Customer is primary Actor and Bank will be the Secondary actor .
Title: Re: use case actors
Post by: 170422303 on July 02, 2017, 01:05:46 pm
*) An actor is external to the subject, it is typically defined in the same classifier or package that incorporates the subject.
    All actors must have names according to the assumed role. Examples of actor names (user roles):
    Customer
    Web Client
    Student
    Passenger
    Payment System
*) Actors can be "PRIMARY ACTORS" and "SECONDARY ACTORS".
Title: Re: use case actors
Post by: 171525904 on July 04, 2017, 02:25:25 pm
Use case actors.Actors who perform system action or interact with system capabilities are called actors, actors can be human, machine, other any system.Actors are classified in two types Primary actor and secondary actor.

Primary actor: Primary actor is an actor who initiate action first. 

Secondary actor: Secondary are those who complete primary actor initiated action or the initiated action can not be completed without actor are called secondary actor. Secondary are defined based situation  and scenarios organization current  technology.


Example: Online payment :
a) Customer who making payment using payment function are called primary actor.
b)when customer choose credit card mode to make payment and action can to completed without Third party system or DB is called secondary actor.Here Bank is secondary actor.
Title: Re: use case actors
Post by: 171035406 on August 27, 2017, 04:12:46 pm
There are two types of use case actors as already mentioned primary and secondary actors.

The primary actors are manly who interact with the system to perform some action like the admin.Who has the entire control over the system and its functionalities.

Secondary actors are those which are used to attain primary actor's goal/objective like the printer/data base.
Title: Re: use case actors
Post by: 111222333 on September 18, 2017, 02:49:29 pm
Primary use case actors vs. Secondary use case actors :-

1. Primary Actor: The primary actor of a use case is the stakeholder that calls on the system to deliver one of its services. It has a goal with respect to the system – one that can be satisfied by its operation. The primary actor is often, but not always, the actor who triggers the use case.
Supporting Actors: A secondary actor in a use case is an external actor that provides a service to the system under design. It might be a high-speed printer, a web service, or humans that have to do some research and get back to us.

2. Primary Actors: The Actor(s) using the system to achieve a goal. The Use Case documents the interactions between the system and the actors to achieve the goal of the primary actor.
Secondary Actors: Actors that the system needs assistance from to achieve the primary actor’s goal.

3. Primary Actors: Always has a goal, and the use case exists to satisfy the primary actor.
Secondary Actors: May or may not have goals that they expect to be satisfied by the use case.
Title: Re: use case actors
Post by: 1171206408 on October 10, 2017, 04:04:25 pm
Primary actor is the one who is dealing directly with the system and the actor which further assists or help the primary actor in completing his job is a secondary actor.
Title: Re: use case actors
Post by: 1172904607 on October 14, 2017, 04:44:37 pm
UseCase Actors:
An actor specifies a role played by a user or any other system that interacts with the subject.
 An use case is a list of actions or event steps typically defining the interactions between a role (known in the Unified Modeling Language as an actor) and a system to achieve a goal. The actor can be a human or other external system.
How do you identify actors in use case diagrams?
To identify use cases we will take the following steps:
1.   Step 1: Identify candidate system actors.
2.   Step 2: Identify the goals of the actors.
3.   Step 3: Identify the candidate use cases.
4.   Step 4: Identify the start point for each use case.
5.   Step 5: Identify the end point for each use case.

Basic types of actors that can exist in a Use Case Diagram?
Actors can be primary or secondary actors.  Primary actors initiate a use case, while secondary actors support a use case or receive something of value from the use case.
Actors can be:
1.   Human
2.   Systems/Software
3.   Hardware
4.   Timer/Clock
Many analysts miss key actors during the use case diagramming process because they only identify human actors.  Categorizing use case actors in this ways helps the analyst ensure they haven’t overlooked any critical actors within the use case diagram.
Title: Re: use case actors
Post by: 1170220109 on October 18, 2017, 05:28:22 pm
Use Case modeling is used to diagrammatically depict a system and those people or processes that interact with it. This system can be a business system (a process) or an application system (computer or web based). To understand the scope of the system under consideration a system boundary is used. Anything depicted within the system boundary is part of the system under consideration, while anything outside of it is not. Use cases are then used to define a group of user-system interactions that together deliver value to the user of the system. These users are called actors.

Primary Actor: The primary actor of a use case is the stakeholder that calls on the system to deliver one of its services. It has a goal with respect to the system – one that can be satisfied by its operation. The primary actor is often, but not always, the actor who triggers the use case.

Secondary Actors: Actors that the system needs assistance from to achieve the primary actor’s goal.
Finally, the Oracle Unified Method (OUM) concurs with the UML definition of Actors, along with Cockburn’s refinement, but OUM also includes the following:
Secondary actors may or may not have goals that they expect to be satisfied by the use case, the primary actor always has a goal, and the use case exists to satisfy the primary actor.
Example:
A bank loan officer wants to review a loan application from a customer, and part of the process involves a real-time credit rating check.
Use Case Name: Review Loan Application
Primary Actor: Loan Officer
Secondary Actors: Credit Rating System
Title: Re: use case actors
Post by: 171034206 on October 25, 2017, 09:52:48 pm
Actor is a living or non living thing. Actor stays away from the system boundary. Primary actor initiates the system to work and system depends on secondary actor for information.

Title: Re: use case actors
Post by: 1171429410 on January 01, 2018, 02:45:40 pm
In use case diagram the actors are included to perform the actions in the system developed. The actors can be primary actor or secondary actor.
Primary Actor
Primary actor is the one who initiates the set of actions in the system. For example in railway reservation system the passenger is the primary actor as he initiates the search for seat availability in the train.
Secondary Actor
Secondary actor is the one who supports the primary actor to fulfill the need. Secondary actor do not initiate the set of actions until the primary actor starts. For example the bill desk is the secondary actor for the system to make payment for the primary actor.
Title: Re: use case actors
Post by: 1173025809 on January 20, 2018, 05:48:14 pm
An Actor models a type of role played by human users, external hardware, or other subjects. In UML activities, it specifies a role played by a user or any other system that interacts with the subject.

There are two types of Actors in UML activity diagrams -
1. Primary Actors - Primary Actors are actor(s) using the system to achieve a goal. The Use Case documents the interactions between the system and the actors to achieve the goal of the primary actor.
2. Secondary Actors - They are the actors that the system needs assistance from to achieve the primary actor’s goal.
Title: Re: use case actors
Post by: 1171921109 on January 21, 2018, 07:41:22 pm
An Association between an actor and use case indicates that the actor and the use case somehow interact or communicate with each other. Use Case Actors generally termed as noun form which may be either a person or the System Action. There are generally two types of use case actors they are
1) Primary actor: Primary actors are those who interact with the system. Eg customer, Admin, System Clock are generally termed as primary actor

2) Secondary actor: Secondary actor are those supporting actors are actors providing services to the system eg Clerk
Title: Re: use case actors
Post by: 1172540411 on February 06, 2018, 07:24:11 pm
ACTOR

Actor really means "someone /thing playing an active part in the operation of a system."
An actor might be a person, a company or organization, a computer program or a computer system, hardware or software or both.

Ex: invoice creator or order taker or manager. 



1)The system under discussion, itself.

2) Internal actor:  The subsystems of the System under Discussion.  An individual object in the software is also an internal actor.

3)The primary actor of a use case: The one and only primary actor of a use case is the external actor whose goal the use case is trying to satisfy, the actor whose action initiates the use case activity.

4)The secondary actor of a use case:  A secondary actor of a use case is an external actor which provides a service to the System under Discussion.  secondary actors helps to identify the external interfaces the system will use.  An external actor might be a secondary actor on one use case and a primary actor on another use case.

A secondary actor might be a high-speed printer, it might be a web service, or it might be a group of humans.

Title: Re: use case actors
Post by: 1171948312 on February 13, 2018, 04:19:50 pm
Actors- It can be living or non- living thing. It is represented by a noun.

There are two types of actors- Primary and Secondary.

Primary Actor- End user or for whom the system is designed- Ex:- For an ATM machine the customer will be the Primary actor
Secondary Actor - Who maintain the system or on whom/which the system is dependent on. Ex:- For an ATM machine, cashier of the machine will be the secondary actor because he will fill the amount whenever it is needed or when the ATM do not have amount in it.
Title: Re: use case actors
Post by: 1170944412 on March 10, 2018, 01:06:05 pm
Actors are one of the 4 major elements while drawing a use case diagram. These are entities that interact with the system being built, it can be a living or a non-living thing.
Primary actor- this is typically the stakeholder that turns to the system to deliver one of its services, i.e. primary actor (s) would initiate the system to work.
Secondary actor- Actors the system will need support from to achieve the primary actor’s goals. In other words, an external actor that would provide service to the system being built so that the system may deliver service to the primary actor.
Example: Consider Railway reservation system, in here the passenger interacts with the system to search and book train tickets so he could travel to the desired destination. He is invoking the system to work and availing its service, so the passenger in this case would be the primary actor
Title: Re: use case actors
Post by: Nitin John on March 10, 2018, 03:08:16 pm

Use case actors.Actors who perform system action or interact with system capabilities are called actors, actors can be human, machine, other any system.Actors are classified in two types Primary actor and secondary actor.
A primary actor :-
•   acts on the system
•   initiates an interaction with the system
•   uses the system to fulfill his/her goal

A secondary actor :-
•   is acted on/invoked/used by the system
•   helps the system to fulfills its goal

Eg :  For a online shopping system, customer is making payment through online
 
          Here Customer is primary Actor and payment gateway will be the Secondary actor
Title: Re: use case actors
Post by: 1180650901 on March 26, 2018, 12:07:29 pm
Primary use case actors are those actor which interact the system first ,
through them secondary actors functions.
Title: Re: use case actors
Post by: Satish kumar Gajula on April 24, 2018, 06:17:41 pm
Actors include in Use Case:
1.   Primary Actor
2.   Secondary Actor

Difference between Primary and Secondary Actor:
Primary Actors are actor(s) using the system to achieve a goal. The Use Case documents the interactions between the system and the actors to achieve the goal of the primary actor. Secondary Actors are actors that the system needs assistance from to achieve the primary actor's goal
Title: Re: use case actors
Post by: 1172540611 on April 29, 2018, 04:31:02 pm
An actor is someone who interacts with the system by sending or receiving the messages to and from the system.
There are 2 types of use case actors:
1.Primary actor
2.Secondary Actor

1.Primary Actor:
   Primary actor initiates the interaction with the system.
2. Secondary Actors:
   Secondary actors do not initiate interaction with the system but participate in one or more use cases of the system.
Title: Re: use case actors
Post by: 1182057301 on May 21, 2018, 08:48:26 am
Actors in use cases are the external roles interacting with the system.
Primary actors are the ones who use the system towards a particular goal. They are usually the actor who initiates the use case, although this is not always true.
Secondary actors provide assistance to the system in achieving its goals.Secondary actors are often external systems providing a service, but they can also be humans who are playing a similar role.
Title: Re: use case actors
Post by: 1180364703 on May 28, 2018, 08:31:37 am
There are basically 2 types of actors and 2 types of use cases.
The actors are:
1. Primary actors
2. Secondary actors

The use cases are :
1. Essential use case
2. Supporting use case

Primary actors are the ones who directly performs actions with the system.
Secondary actors are the ones who does not directly interact with the system.

Essential use cases are the actual actions performed by the actors.
Supporting use cases are the ones which support the actors in achieving the essential use case.
Title: Re: use case actors
Post by: 1180654601 on June 09, 2018, 06:52:59 pm
An actor in the Unified Modeling Language (UML) specifies the role played by a user or any other system that interacts with the subject.
Actors may represent roles played by human users, external hardware, or other subjects.

Primary Actors: The Actor(s) using the system to achieve a goal. The Use Case documents the interactions between the system and the actors to achieve the goal of the primary actor.
A primary actor initiates an interaction with the system.

Secondary Actors: Actors that the system needs assistance from to achieve the primary actor’s goal.
Secondary actors may or may not have goals that they expect to be satisfied by the use case, the primary actor always has a goal, and the use case exists to satisfy the primary actor.
The system initiates interactions with secondary actors.
Title: Re: use case actors
Post by: 1183170103 on June 15, 2018, 02:15:31 pm
AS per my understanding -

A Primary actor is  one who uses the system to achieve a goal. This could be an end user or an admin or anyone for whom the system was developed.
Secondary actor is one who assists the primary actor in achieving said goal. This can be a person, or a bank, or a printer.
Title: Re: use case actors
Post by: 1180364903 on June 22, 2018, 08:44:28 pm
The main difference between a Primary and Secondary actor is

Primary Actors: The Actor using the system to achieve a goal. The Use Case documents the interactions between the system and the actors to achieve the goal of the primary actor.

Secondary Actors: Actors that the system needs assistance from to achieve the primary actor's goal.
Title: Re: use case actors
Post by: 1181472704 on June 25, 2018, 08:08:59 am
Primary Actors are actor(s) using the system to achieve a goal. The Use Case documents the interactions between the system and the actors to achieve the goal of the primary actor. Secondary Actors are actors that the system needs assistance from to achieve the primary actor’s goal.
Title: Re: use case actors
Post by: 1181471104 on June 27, 2018, 11:31:47 am
Primary Actors: The Actor(s) using the system to achieve a goal.
 The Use Case documents the interactions between the system and the actors to achieve the goal of the primary actor.
 Secondary Actors: Actors that the system needs assistance from to achieve the primary actor's goal.
Title: Re: use case actors
Post by: 1181278305 on July 11, 2018, 10:28:21 pm
Actors are that the system you are describing interacts with .Actors is a living or non living thing .
Actor is represented by a noun .Actors are always stay away from system boundary.There are 2 types of actor Primary and Secondary actor.

Primary actor -who initiates the system to work and system depends on secondary actor for information .

Usually Primary actors are placed on left side and secondary actors are placed on right side of system boundary .


Title: Re: use case actors
Post by: 1181280005 on July 31, 2018, 02:11:09 pm
Actors are majorly two:
1)Primary Actor
2)Secondary Actor

1)Primary Actor are those who are directly interacting with the use case.
2)Secondary Actor are those who indirectly interacts with the use case.
Title: Re: use case actors
Post by: viswanathan on September 01, 2018, 11:07:52 pm
Use case actors
   An actor is a noun living or non living thing

   Every use case will have actors and has specific goals primary actor initiates provide input to it and receive output to it , processing the information or system depends on the information is a secondary actor – third party system

   Actors can be people, other system, time triggers
   Example: Stock maintenance system
   Does this have any external customer interacts or initiates the action? No

It’s just maintaining the stock details in a store admin does this so admin is consider as a primary actor

Does this rely on third party information to complete the admin goals as storing data? No stock details will be stored in database so here no secondary actor
Title: Re: use case actors
Post by: viswanathan on September 01, 2018, 11:18:40 pm
what is actor generalization explain with example?
Title: Re: use case actors
Post by: viswanathan on September 02, 2018, 10:38:34 pm
Explain with any example for system initiates(Actor),time triggers,automation use case?
Title: Re: use case actors
Post by: 1182459601 on October 03, 2018, 04:15:21 pm
Primary Actor- someone who interacts directly with the system and uses it to finish a task.

Secondary Actor -  the system needs help from the secondary actor to achieve the primary actor’s goal, usually in a use case it is an external actor that provides help to the system under design.
Title: Re: use case actors
Post by: 1180793807 on October 16, 2018, 10:55:04 pm
suppose an atm machine has to be build up. for that primary actors will be the normal people who will be going to withdraw the cash and also the cashier who will be re filling the atm machine when the cash goes out. whereas the secondary actor will be the bank database where the records of  client will be there, also the printer which prints the receipt also comes in the category of secondary actors. hence it does not have to worry about whether only living things such as people will only be the actors, instead it will be non living things too can act as the actors. hence actors are those who direct or indirectly are involved in the using of the mechanism.
Title: Re: use case actors
Post by: 1181278605 on October 24, 2018, 01:40:51 pm
actor canbe any thing living and non living.
actor always stay away form the system boundary.
all reusable actor should place on the right side of system boundary.
actor can be classified as primary actor and 2ndry actor.
PRIMARY ACTOR IS ONE WHO START INTERACTING WITH THE SYSTEM. customer, receptionist etc.
2NDRY ACTOR HELPS THE SYSTEM TO ACHIEVE HIS OBJECTIVE. like database, system clock,bank etc.
we can also generalize actor. like user. register user and non register.
Title: Re: use case actors
Post by: 1182916109 on December 14, 2018, 01:32:01 pm
Use case actors : in UML use case activity there are two types of actors that used to draw the use case diagram, they are
1. Primary actor: The one who initiate an action.
2. Secondary actor: The one who support system actions or systems actions can be depended by the support system. Secondary actor always represents right side of the system boundary.  Parent data base cannot be modeled as a secondary actor.
Title: Re: use case actors
Post by: 1191940101 on March 23, 2019, 09:30:26 am
Can Anyone explain me Who are Use Case Actors i.e., Primary Use case Actors Vs Secondary Use case Actors
An actor specifies a role played by a user or any other system that interacts with the subject.
Primary Actor: The primary actor of a use case is the stakeholder that calls on the system to deliver one of its services. It has a goal with respect to the system – one that can be satisfied by its operation. The primary actor is often, but not always, the actor who triggers the use case.

Secondary Actors: A supporting actor in a use case in an external actor that provides a service to the system under design. It might be a high-speed printer, a web service, or humans that have to do some research and get back to us.
For example:
A bank loan officer wants to review a loan application from a customer, and part of the process involves a real-time credit rating check.
Use Case Name: Review Loan Application
Primary Actor: Loan Officer
Secondary Actors: Credit Rating System
Title: Re: use case actors
Post by: 1191648502 on May 12, 2019, 07:05:40 pm
Primary Actor - Primary actors are the one who initiates or perform some action .

Secondary Actor - Secondary actors are the one who support system action .
Title: Re: use case actors
Post by: 1192574505 on July 26, 2019, 06:06:26 pm
Primary actor who initaies the actor
secondary actor who assists the primary actor
Title: Re: use case actors
Post by: 1192767805 on August 03, 2019, 10:02:31 am
Primary Actors: The Actor(s) using the system to achieve a goal. The Use Case documents the interactions between the system and the actors to achieve the goal of the primary actor.

Secondary Actors: Actors that the system needs assistance from to achieve the primary actor’s goal.
Secondary actors may or may not have goals that they expect to be satisfied by the use case, the primary actor always has a goal, and the use case exists to satisfy the primary actor.
Title: Re: use case actors
Post by: 1190244102 on August 03, 2019, 08:02:43 pm
Primary Actor: The primary actor of a use case is the stakeholder that calls on the system to deliver one of its services. It has a goal with respect to the system – one that can be satisfied by its operation. The primary actor is often, but not always, the actor who triggers the use case.

 

Supporting Actors: A supporting actor in a use case in an external actor that provides a service to the system under design. It might be a high-speed printer, a web service, or humans that have to do some research and get back to us.
Title: Re: use case actors
Post by: 1190538101 on October 04, 2019, 07:19:35 pm
users can play. Sometimes the actor will just be called "User," but is often given a specific role name. For example, our Internet Bookstore system will have actors called Webmaster, Stock Purchaser, Shipping Clerk, and Customer. The user (actor) is external to the system—he or she is on the "outside," whereas the system is on the "inside." Actors can represent nonhuman external systems as well as people. Sometimes people are confused by this notion; we've found that drawing a "robot stick figure" icon seems to clear this up.
An association from the actor to a use case means that the actor is the one who carries out that use case. The association can also signify responsibilities. For example, an Administrator pointing to a Moderate Forum Messages use case means "The administrator is responsible for moderating forum messages."
You can have more than one actor pointing to one use case, which simply means that the use case is associated with more than one role. Similarly, a user can serve as more than one type of actor; the same user might be both the Stock Purchaser and the Shipping Clerk.
Title: Re: use case actors
Post by: 1192357311 on December 17, 2019, 05:27:39 pm
Primary Use Case Actor: An actor that calls on the system to deliver one of its services. It has a goal and will be satisfied by the operations.

Secondary Actor: An external actor who provides services to the system.
Title: Re: use case actors
Post by: 1191214910 on December 29, 2019, 07:25:15 pm
USE CASE ACTORS:
Use Case Actors will do the  work regarding the use case  specifications.
According to the Use Case work .
Title: Re: use case actors
Post by: 1200182002 on April 11, 2020, 02:22:00 pm
Primary Actor: a user whose defined user goal and is fulfilled by the system

The primary actor of a use case is the stakeholder that calls on the system to deliver one of its services. It has a goal with respect to the system – one that can be satisfied by its operation. The primary actor is often, but not always, the actor who triggers the use case.
Supporting Actors: a user who provides a service (e.g., information) to the system.

A supporting actor (also known as a secondary actor) in a use case in an external actor that provides a service to the system under design. It might be a high-speed printer, a web service, or humans that have to do some research and get back to us.
Title: Re: use case actors
Post by: 1202988602 on June 06, 2020, 03:30:59 pm
Actors that the system you are describing interacts with,
Primary actor initiates the system to work and system depends on secondary actor for information.
Title: Re: use case actors
Post by: 1202988902 on June 18, 2020, 03:34:44 pm
An actor is behaviored classifier which specifies a role played by an external entity that interacts with the subject (e.g., by exchanging signals and data), a human user of the designed system, some other system or hardware using services of the subject.

The term "role" is used informally as some type, group or particular facet of users that require specific services from the subject modeled with associated use cases. When an external entity interacts with the subject, it plays the role of a specific actor. That single physical entity may play several different roles, and a specific role may be played by single or multiple different instances.

Since an actor is external to the subject, it is typically defined in the same classifier or package that incorporates the subject.

All actors must have names according to the assumed role. Examples of actor names (user roles):

Customer
Web Client
Student
Passenger
Payment System
Standard UML notation for actor is "stick man" icon with the name of the actor above or below of the icon. Actor names should follow the capitalization and punctuation guidelines for classes. The names of abstract actors should be shown in italics.

Use case actor as a stick man.
Student actor

Custom icons that convey the kind of actor may also be used to denote an actor, such as using a separate icon(s) for non-human actors.

Use case actor shown as custom web client icon.
Custom icon for Web Client actor

Use case actor shown as custom bank icon.
Custom icon for Bank actor

An actor may also be shown as a class rectangle with the standard keyword ?actor?, having usual notation for class compartments, if needed.

Use case actor shown as Class.
Customer actor as Class

An actor can only have binary associations to use cases, components, and classes.

Business Actor
A business actor (introduced in Rational Unified Process (RUP) to support business modeling) represents a role played by some person or system external to the modeled business and interacting with the business. Note, business actor is not defined in UML standard.

Some typical examples of business actors are:

Customer
Supplier
Patron
Passenger
Authority
Bank
Each business actor represents something outside of the modeled business and should be involved with at least one business use case.

Business actor is represented in RUP by "stick man" icon with a line crossing its head.

Use case business actor as a stick man with crossed head.
Business actor Passenger

Relationships Between Actors
We can define abstract or concrete actors and specialize them using generalization relationship.

Generalization between actors is rendered as a solid directed line with a large arrowhead (same as for generalization between classes).

Generalization between use case actors
Web Client actor is abstract superclass for Administrator, Editor and Customer
Title: Re: use case actors
Post by: 1190953011 on July 17, 2020, 01:21:15 pm
First we need to understand who is an actor?
So, an actor is a user or a system who interacts with the subject. Actors are of two types:
a. Primary Actor : Who interacts with the subject to achieve a goal.
b. Secondary Actor : Who helps the Primary actor to achieve a goal.
Example: If a Customer searches for a train in a system to check availability of train from the Database, then here Customer is the Primary actor as he/she wants to search a train and Database is the secondary Actor as it is returning the details back to the Customer hence helping him/her to achieve the goal.
Title: Re: use case actors
Post by: 1200697404 on March 19, 2021, 03:32:20 pm
Primary Actors initiates the System to work & System depends on Secondary Actor for Information
Title: Re: use case actors
Post by: Aruna on March 23, 2021, 08:51:45 pm
primary Use case actors : Front end having front end interaction with the integrating systems
1. Essential use case : High level action is performed by the user
2. Supportive use case : just supports the essential use case

Secondary Actor : Having backend interactions with the integrating systems
ex : Database , Financial clearing system
Title: Re: use case actors
Post by: 1213066901 on April 11, 2021, 09:52:34 pm
Can Anyone explain me Who are Use Case Actors i.e., Primary Use case Actors Vs Secondary Use case Actors

Actors are the one interacting with the system which is developed. Interaction happens in 2 ways.

1. The one who initiates
2. The one who responds.

The one who initiate the system to work based on the functionalities are the primary actors (Eg: Human)
The one who responds after the primary actor has initiated something is secondary actors (Eg : Printer, Scanner, Payment gateway)
Title: Re: use case actors
Post by: 1202147611 on May 07, 2021, 01:52:21 pm
The difference between Primary and Secondary actors are

Primary Actor: The primary actor of a use case is the stakeholder that calls on the system to deliver one of its services. It has a goal with respect to the system ? one that can be satisfied by its operation. The primary actor is often, but not always, the actor who triggers the use case.

Primary Actor: The Actors using the system to achieve a goal. The Use Case documents the interactions between the system and the actors to achieve the goal of the primary actor.

Primary actor always has a goal, and the use case exists to satisfy the primary actor

Secondary Actors: A supporting actor in a use case in an external actor that provides a service to the system under design. It might be a high-speed printer, a web service, or humans that have to do some research and get back to us.

Secondary Actors: Actors that the system needs assistance from to achieve the primary actor?s goal.
Title: Re: use case actors
Post by: 1210387404 on June 03, 2021, 07:05:00 pm
use case primary actor is 1 who directly interacts with the system.

Ex:  In a point of sale system, a customer walks into a shop, picks the required items and goes to the cashier for payment . here teh customer does not interact with teh system. The cashier cheks the items, cheks the quatity, generates the bill, process teh pmt, etc. The total ineracton with teh system is done by the cahsier. hence is is the primary actor.

Secondary actor here for the same point of sale - may be a database. On purchase the database shall send SMS to the customer mobile.

Database may not be a secondary actor in many of the cases. It may vary on the situation.
Title: Re: use case actors
Post by: 1212081703 on June 10, 2021, 04:21:32 pm
Actors can be people, other systems, time triggers, or event triggers. An actor specifies a role played by a user or any other system that interacts with the subject. It may represent roles played by human users, external hardware, or other subjects.
Title: Re: use case actors
Post by: 1212081803 on June 16, 2021, 01:02:34 pm
primary actors are who are acting on the system

secondary actors are the who are acted by the system
Title: Re: use case actors
Post by: 1212081803 on June 16, 2021, 01:17:22 pm
use case actors are who are the persons performing in the project.

primary use case actors are the who are acting on the system

secondary actors are the who are acting supporting by the system
Title: Re: use case actors
Post by: 1200748711 on July 14, 2021, 08:10:47 am
Primary Actors:
Actors who interact with the system to achieve the goal of the primary actors.
Secondary Actors:
These actors assist the goal of the Primary actors to achieve.
Example:
ATM machine:
Primary Actor:
* Customers
Secondary Actors:
* Database
* Printer
Title: Re: use case actors
Post by: 1212490804 on July 14, 2021, 11:00:05 pm
Actors: They represent the end users who are performing an action on the system. Basically, they play a major role in using functionality of the system.
These are again classified into 2 types:
Primary Actors ? They are the ones who is using the system on behalf of the user or may be just who directly interacts with the system. 
Secondary Actors ? They are the ones who support the system flow to execute the functionalities.
Title: Re: use case actors
Post by: 1212282002 on July 29, 2021, 12:15:53 pm
Primary Actor - Primary actors are mainly the stake holders through the process happens.

Secondary Actor - Secondary actors are the supporting factors which help the system to fulfill the action .

Eg :   Receptionist is receiving payment through Card uses swipe machine
 
          Here Receptionist is primary Actor and Swipe Machine will be the Secondary actor .
Title: Re: use case actors
Post by: 12110103605 on September 06, 2021, 04:26:35 pm
The users that interact with a system.An actor can be a person, an organisation or an outside system that interacts with your application or system
Title: Re: use case actors
Post by: 12131122607 on October 19, 2021, 02:25:43 pm
The users that interacts with the system. Actors can be people, other systems, time triggers, or event triggers. An actor specifies a role played by a user or any other system that interacts with the subject.
There are 2 types of actor:
1.Primary actor
2.Secondary actor
Primary actor are the one who acts upon the system , they carry out the functionality.
Secondary actor are the one who supports the system to carry out its functionality.
Title: Re: use case actors
Post by: 12110117407 on January 06, 2022, 12:40:43 pm
Primary Actors: The Actor(s) using the system to achieve a goal.
 The Use Case documents the interactions between the system and the actors to achieve the goal of the primary actor.
 Secondary Actors: Actors that the system needs assistance from to achieve the primary actor's goal.
Title: Re: use case actors
Post by: 12121134207 on January 08, 2022, 11:57:41 am
A primary actor :-
                               acts on the system
                               initiates an interaction with the system
                               uses the system to fulfill his/her goal

A secondary actor :-
                             is acted on/invoked/used by the system
                             helps the system to fulfills its goal
Title: Re: use case actors
Post by: 12125186412 on January 12, 2022, 11:28:43 am
Primary Actors: The Actor(s) using the system to achieve a goal.
 The Use Case documents the interactions between the system and the actors to achieve the goal of the primary actor.
 Secondary Actors: Actors that the system needs assistance from to achieve the primary actor's goal.
Title: Re: use case actors
Post by: 12121133308 on January 12, 2022, 11:40:50 am
An Actor is the one who initiates an action with the system. Actors could be anybody from persons who are the users of the system to organization and system too. They are basically initiators of the system.
Primary Actor who initiates the process or action, rest all are secondary actors.
Title: Re: use case actors
Post by: 12131123807 on January 14, 2022, 08:41:06 pm
The users that interact with a system. An actor can be a person, an organization, or an outside system that interacts with your application or system. They must be external objects that produce or consume data.
Title: Re: use case actors
Post by: 12111163010 on January 19, 2022, 12:28:04 pm
 Use case actors

1.   Actors is a living or non-living thing.
2.   Actor is represented by a noun.
3.   Actor always stay away from the system boundary
4.   Primary actor imitates the system to work 
5.   System depends on secondary actor for information.
6.   All reusable actors should be placed towards the right side of the system boundary.

Title: Re: use case actors
Post by: 12125148309 on January 19, 2022, 12:41:28 pm
ypes of actors used in use case diagram:








1)Primary/principle Actor: People who use the main system functions are refereed as primary or principle actors. Example: in ATM system primary actor is customer

2)Secondary Actor: People who perform administrative or maintenance task are referred as secondary actors. It provides a service to the system under design. Example: in ATM system a person in charge of loading money into the system is a secondary actor.

3)External actor: The hardware devices which are required as apart of application domain and must be used are referred as external actors. Example: in ATM system printer is an external actor.

4)Other system actor: The other system with which the system must interact referred as other system actors.Example: in ATM system bank network system is another system actor.
Title: Re: use case actors
Post by: 12131122207 on January 27, 2022, 04:11:39 pm
An Actor is the person who begins a system action. Actors might range from individuals who are system users to organisations and systems themselves. They are the system's primary initiators.
The primary actor is the one who starts the process or action; the others are subsidiary actors.
Title: Re: use case actors
Post by: 12203215802 on March 25, 2022, 09:29:24 pm
Primary actors - are those who directly intereact with the system for e.g., Customer
Secondary actors - are those who support the system . for e.g., Database server
Title: Re: use case actors
Post by: 12120171211 on March 29, 2022, 02:43:47 pm
A use-case describes a sequence of actions, performed by a system that provides value to an actor. The use-case describes the system?s behavior under various conditions as it responds to a request from one of the stakeholders, called the primary actor
Title: Re: use case actors
Post by: 12130164810 on April 16, 2022, 01:55:45 am
Primary Actor: Primary actors are the one who initiates or perform some action.

Secondary Actor: Secondary actors are the one who support system action.

Example :  customer is making payment through online. Here, Customer is primary Actor and Bank will be the Secondary actor .
Title: Re: use case actors
Post by: 12117192212 on April 29, 2022, 05:00:03 pm
Actors:- The use case that interacts with a system. An actor can be a person, an organization or an outside system that interacts with your applications or system. They must be external objects that produce or consume data.

Primary actors:- The primary actors of a use case is the stakeholders that calls on the system to deliver one of it's services. It has goals with respect to the system -one that can be satisfied by it's operation. The primary actor is often, but nit always the actors who triggers the use case.

Secondary actor:-A secondary actor is one from which the system require assistance to complete the use case.  A secondary actor never initiates the use case. It is invoked by the system's use case in order to obtain information or a result.
Title: Re: use case actors
Post by: 12215203601 on May 16, 2022, 07:10:25 pm
Actor in a use case diagram is any entity that performs a role in one given system. This could be a person, organization or an external system and usually drawn like skeleton

Primary Actor: The primary actor of a use case is the stakeholder that calls on the system to deliver one of its services. It has a goal with respect to the system ? one that can be satisfied by its operation. The primary actor is often, but not always, the actor who triggers the use case.

Secondary actor: A secondary actor is one from which the system requires assistance to complete the use case. A secondary actor never initiates the use case. It is invoked by the system's use cases in order to obtain information or a result. There may also be many secondary actors of a system.
Title: Re: use case actors
Post by: 12121168210 on May 16, 2022, 08:39:44 pm
An actor in the Unified Modeling Language (UML) specifies a role played by a user or any other system that interacts with the subject.

Actors are classified into primary actors (also called active actors) and secondary actors (also called passive actors).
Primary actors initiate a use case and hence are somewhat independent.
Secondary actors, on the other hand, are used by the system but they do not interact with the system on their own.
Title: Re: use case actors
Post by: 12103112907 on May 16, 2022, 10:36:30 pm
There are mainly two types of actors can be depicted in a Use case:
1. Primary actors ? It starts the process
2. Secondary actors ? It assists the primary actor

Moreover, we can categorized actors into four types :
? Human
? System
? Hardware
? Timer
Title: Re: use case actors
Post by: 12215202401 on May 22, 2022, 01:24:47 pm
Can Anyone explain me Who are Use Case Actors i.e., Primary Use case Actors Vs Secondary Use case Actors

Primary Actor is an actor who interacts with the system. For every use case diagram there is only one primary actor
Secondary actor is an actor who supports primary actor to interact with system. Use case diagram can have more than one secondary actors
Title: Re: use case actors
Post by: 12215202401 on June 01, 2022, 11:30:07 am
1. Primary Actor - A primary actor initiates the interaction with the system and kept on left side of system. All primary actors are placed on the left side of system
2. Secondary Actor - Secondary actor may provide a service to the system and also supports primary actor to interact with the system and all secondary actors are placed on right side of system
Title: Re: use case actors
Post by: 12219239203 on June 08, 2022, 04:45:00 pm
Actors can be people, other systems, time triggers, or event triggers.

An actor specifies a role played by a user or any other system that interacts with the subject. It may represent roles played by human users, external hardware, or other subjects. Actors are always outside the system and interact directly with it by initiating a use case, provide input to it, and/or receive outputs from it. While a single physical instance may play the role of several different actors, an actor does not necessarily represent specific physical entities, i.e. a timer that triggers sending of an e-mail reminder.
Title: Re: use case actors
Post by: 12209226202 on June 29, 2022, 09:46:23 pm
Use case have two actor . One is primary actor and second one is secondary actor
Primary actor initiate the action where as Secondary actor finish the action
Title: Re: use case actors
Post by: 12205210102 on July 01, 2022, 10:55:41 pm
in a Use case there are mainly two types of actors are there.

primary actors: primary actors are those who starts the process.
Secondary actors: Secondary actors are those who assists the primary actors.

moreover, we can classify actors into 4 types.
?   Human
?   System
?   Hardware
?   Timer
Title: Re: use case actors
Post by: 12223255405 on July 02, 2022, 06:31:28 pm
Primary Actors: Primary actors initiate the interaction with use case.
                       They interact directly with the system
                       There must be atleast one or more than one primary actors for every use case
                       All the nouns come under primary actors.
                       He is the one who send request to the system
                       Eg, manager, User, Admin

Secondary actors: Secondary actors are the supporting actors for the system
                           He is an external actor that provide service to system
                           He is the one from which system requires assistance to complete use case
                           He never initiates use case
                           Everyone other than nouns come under secondary actors
                           There might be any number of secondary actors
                           He is the one who accept request from the system
                           Eg, Database, Printers, Web service devices etc
Title: Re: use case actors
Post by: 12217236302 on July 13, 2022, 03:39:11 pm
there are two types of actors
1- primary - these are those actors for which system is develop and the user of the system comes under primary actors.
2- secondary - these are the actors who supports the primary actor in interacting with the system.
Title: Re: use case actors
Post by: 12205210302 on July 14, 2022, 01:14:14 pm
The primary actor is the one that initiates a use case.
A secondary actor is the one that helps completion of the use case through his specific support.
The Primary actor is usually placed at the left side to the boundary of the system and the secondary actor is placed to the right of the boundary of the system.
Title: Re: use case actors
Post by: 12215201301 on July 15, 2022, 03:36:09 pm
Actors are classified into primary actors (also called active actors) and secondary actors (also called passive actors). Primary actors initiate

a use case and hence are somewhat independent. Secondary actors, on the other hand, are used by the system but they do not interact with the system on their own.
Title: Re: use case actors
Post by: 12228280305 on July 26, 2022, 12:59:45 pm
Primary Actor - Primary actors are the one who initiates or perform some action .

Secondary Actor - Secondary actors are the one who support system action .

Eg :   customer is making payment through online to bank
 
          Here Customer is primary Actor and Bank will be the Secondary actor .
Title: Re: use case actors
Post by: 12212216902 on August 03, 2022, 03:37:19 pm
An actor in use case modeling specifies a role played by a user or any other system that interacts with the subject.
An Actor models a type of role played by an entity that interacts with the subject (e.g., by exchanging signals and data), but which is external to the subject.
Actors may represent roles played by human users, external hardware, or other subjects.
Actors do not necessarily represent specific physical entities but merely particular facets (i.e., ?roles?) of some entities that are relevant to the specification of its associated use cases.
A single physical instance may play the role of several different actors and a given actor may be played by multiple different instances.
Types of actors include:

Users
database systems
clients and servers
cloud platforms
devices
Title: Re: use case actors
Post by: 12230256704 on August 06, 2022, 07:28:31 am

A use case diagram shows the interaction between the system and entities external to the system. These external entities are referred to as actors. Actors represent roles that may include human users, external hardware, or other systems
Title: Re: use case actors
Post by: 12217235602 on August 06, 2022, 11:46:33 am
1)Primary/principle Actor: People who use the main system functions are referred to as primary or principle actors. For example: in an ATM system primary actor is the customer.
2)Secondary Actor: People who perform administratively or maintenance tasks are referred to as secondary actors
The primary actor of a use case is the actor who specifies the user goal and usually also initiates an interaction with the use case. The secondary actor (also called the supporting actor) never initiates an interaction with the use case, and it does not trigger it in any way.
Title: Re: use case actors
Post by: 12202253104 on August 06, 2022, 01:49:00 pm
USE CASE
What is a use case? Use cases explained
A use case is a description of the ways in which a user interacts with a system or product. A use case may establish the success scenarios, the failure scenarios, and any critical variations or exceptions. A use case can be written or made visual with the help of a use case model tool.
What is the purpose of a use case?
The purpose of a use case is to:
?   Manage scope
?   Establish requirements
?   Outline the ways a user will interact with the system
?   Visualize system architecture
?   Communicate technical requirements to business stakeholders
?   Risk management
Why do project managers need to know about use cases?
Project managers need to know about use cases because they help communicate strategy to stakeholders and bridge the gap between business justification and technical requirements.
PMI also notes that ?use cases provide a structure for gathering customer requirements and setting the project scope.? But what does that mean in practical terms?
Let?s say that you are a project manager for an education tech firm. Your company?s latest product idea is an app for students where they can receive live tuition for a monthly subscription fee. Creating a use case for this application can tell stakeholders and the project team who the customer is, how the customer will interact with the product, and what the scope gap meaning and requirements of the project will be.
How to write a use case for a project
When presented in written form, a use case can be a helpful piece of project documentation. Use cases are a common requirements artifact, and they can smoothen communication across technical and business stakeholders.
Depending on the intended audience and system under discussion, the use case can be as detailed or basic as needed. A use case document should establish and identify a few key components ? these are:
?   System: A system is the product, service, or software under discussion. 
?   Actors: An actor is a user or anything else that exhibits behavior when interacting with the system. The actor could be another system, a piece of hardware, or an entire organization. There are four types of actors: a system under discussion, an internal actor, a primary actor, and a secondary actor. The most commonly referred to are the latter two systems. A primary actor initiates the interaction with the system, while a secondary actor may provide a service to the system.
?   Scenario: In ?Applying UML and Patterns,? Larman notes that ?a scenario is a specific sequence of actions and interactions between actors and the system under discussion; it is also called a use case instance.?
?   Use case: A use case outlines the success and failure scenarios that can occur when the actor(s) interact with the system. In this section, you?d establish the main success scenario.
Let?s take a look at a simple use case example:
?   Use case for meal delivery application: Individuals can use an app to place food orders directly to restaurants. When the user places an order, they are prompted to pay through the app or pay when the food arrives. Once that is confirmed, the restaurant will receive a request through their system. The food will then be prepared, packaged, and delivered to the individual. In this case, the app must be able to receive orders, process payments, and communicate with the restaurant electronically.
?   System: Food delivery application
?   Primary actor: Customer ordering a meal
?   Scenario: The user browses restaurant options. Once the preferred restaurant is selected, they place an order through the application. The user pays online or verifies they will pay in person. The order is sent from the app to the restaurant?s internal system. The restaurant worker receives and processes the electronic order.

This use case illustrates how both the customer and restaurant employee (the actors) interact with the food delivery application (the system) and the expected outcome of each interaction.

This helps sketch a framework for what is expected in the development stage. The app must be able to process payments, for example.
Title: Re: use case actors
Post by: 12228258603 on August 10, 2022, 11:31:17 am
An actor specifies a role played by a user or any other system that interacts with the subject. It may represent roles played by human users, external hardware, or other subjects. Actors are always outside the system and interact directly with it by initiating a use case, provide input to it, and/or receive outputs from it. While a single physical instance may play the role of several different actors, an actor does not necessarily represent specific physical entities, i.e. a timer that triggers sending of an e-mail reminder.
Title: Re: use case actors
Post by: 12221291005 on August 10, 2022, 03:39:10 pm

Can Anyone explain me Who are Use Case Actors

Use case actor is external entities which is out side of the system boundary i.e., human users, external hardware or other systems.


 i.e., Primary Use case Actors Vs Secondary Use case Actors
Primary actors are initiate a use case and hence are somewhat independent. secondary actors are used by the system but they do not ineract with the system on their own it means they are somewhat dependent.
Title: Re: use case actors
Post by: 12221277305 on August 11, 2022, 01:58:59 pm
Actors. A use case diagram shows the interaction between the system and entities external to the system. These external entities are referred to as actors. Actors represent roles which may include human users, external hardware or other systems.
A use case must be connected to at least one actor or to at least one use case. Otherwise, the use case may stand alone which is not useful. If it is connected to an actor, the connection must be an association.
Title: Re: use case actors
Post by: 12223223904 on August 15, 2022, 12:37:12 am
There are two type of actors,

Primary actors are those who directly interreact with the system for e.g., Customer
Secondary actors are those who support the system . for e.g., Database server
Title: Re: use case actors
Post by: 12210216801 on August 15, 2022, 11:34:11 pm
in a use case diagram typically there are two actors, primary actor and a secondary actor. Primary actors initiate the use cases of the system that may be business processes or application functionality.  A use case within the system may have more than one primary actor, since more than one type of role may initiate the processes or functionality of the system. The system, and its use cases, often rely on other people, business processes, or applications in order to obtain a result or specific information required to achieve its goal.  These are called Secondary Actors.  A secondary actor is one from which the system requires assistance to complete the use case.
Title: Re: use case actors
Post by: 12202217304 on August 16, 2022, 05:19:21 pm
Primary actors are the ones that directly interact with the system. They cause actions but secondary actors are the ones that help primary actors to get the action completed but they do not directly interact with the system.
Title: Re: use case actors
Post by: 12221283105 on August 19, 2022, 02:39:32 pm
Primary Actor - Primary actors are the one who initiates or performs some action.

Secondary Actor - Secondary actors are the ones who support system action.

For example - the customer is making a payment through online.
Here, the Customer,is the primary Actor and Bank will be the Secondary actor.
Title: Re: use case actors
Post by: pradip on August 19, 2022, 09:30:28 pm
Primary Actor - Primary actors are the one who initiates or perform some action .

Secondary Actor - Secondary actors are the one who support system action .

Example: Online payment :
a) Customer who making payment using payment function are called primary actor.
b)when customer choose credit card mode to make payment and action can to completed without Third party system or DB is called secondary actor. Here Bank is secondary actor
Title: Re: use case actors
Post by: 12221283105 on August 20, 2022, 10:00:29 am
Primary Actor - Primary actors are the one who initiates or performs some action.

Secondary Actor - Secondary actors are the ones who support system action.

For example - the customer is making a payment through online.
Here, the Customer,is the primary Actor and Bank will be the Secondary actor.
Title: Re: use case actors
Post by: 12228280605 on August 22, 2022, 06:05:37 pm
There are two types of use case actors as already mentioned primary and secondary actors.

The primary actors are manly who interact with the system to perform some action like the admin Who has the entire control over the system and its functionalities.

Secondary actors are those which are used to attain primary actor's goal/objective like the printer/data base.

Example: Online payment :
a) Customer who making payment using payment function are called primary actor.
b)when customer choose credit card mode to make payment and action can to completed without Third party system or DB is called secondary actor.Here Bank is secondary actor.
Title: Re: use case actors
Post by: 12226229102 on August 23, 2022, 11:02:57 pm
Actors. A use case diagram shows the interaction between the system and entities external to the system. These external entities are referred to as actors. Actors represent roles which may include human users, external hardware or other systems.
Primary Actor: a user whose defined user goal and is fulfilled by the system.

The primary actor of a use case is the stakeholder that calls on the system to deliver one of its services. It has a goal with respect to the system ? one that can be satisfied by its operation. The primary actor is often, but not always, the actor who triggers the use case.

Supporting Actors: a user who provides a service (e.g., information) to the system.
A supporting actor (also known as a secondary actor) in a use case in an external actor that provides a service to the system under design. It might be a high-speed printer, a web service, or humans that have to do some research and get back to us.
Title: Re: use case actors
Post by: 12208270705 on August 24, 2022, 03:30:24 pm
A primary actor is the one who will interacting with the system through screen.

A secondary is the one which provides support to the primary actors related with hardware/Payment servers etc

E.g: For application of Make My Trip, A passenger shall be primary actor while printer, sms/email server, FCH, NPCI etc shall be secondary actors.
Title: Re: use case actors
Post by: 12201188601 on August 25, 2022, 10:40:07 pm
UML is unified model language which is used to model the requirements and making understand the requirements to technical team.  In UML, Use Case is one of the diagram which is used to draw for user perspective.  In USE case we have actors which are either individual or other system generally interacts with the main system.
The rare two types of actors,
Primary actor- It an end user or any stake holder has an requirement or action with the system. User has an association with the system to perform an action.
Supporting actors: It an actor which provides or receives the services to system. It might be a high-speed printer, a web service, or humans that have to do some research and get back to us.
Example: Customer want to pay for item and prints the receipts for the payment.
Primary actor is: Customer
Supporting actor: printer will the receipt once payment is done.
System: Which performs payment process an action. It is an essential use case.
Title: Re: use case actors
Post by: 12228281605 on August 26, 2022, 12:58:26 pm
The Unified Modeling Language (UML1) defines an Actor (from UseCases) as:

An actor specifies a role played by a user or any other system that interacts with the subject.

Primary Actor: The primary actor of a use case is the stakeholder that calls on the system to deliver one of its services. It has a goal with respect to the system – one that can be satisfied by its operation. The primary actor is often, but not always, the actor who triggers the use case.

 

Supporting Actors: A supporting actor in a use case in an external actor that provides a service to the system under design. It might be a high-speed printer, a web service, or humans that have to do some research and get back to us.
Title: Re: use case actors
Post by: 12228281605 on August 26, 2022, 01:03:33 pm
Actor: People or systems that provide or receive information from the system. They are among the stakeholders of the system.

Primary Actor: The primary actor of a use case is the stakeholder who stimulate the system and are the initiators of the events.
Supporting Actor: Actor that the system needs assistance from to achieve the primary actor?s goa
Title: Re: use case actors
Post by: 12205209702 on August 27, 2022, 09:32:47 am
Actors. A use case diagram shows the interaction between the system and entities external to the system. These external entities are referred to as actors. Actors represent roles which may include human users, external hardware or other systems.
Title: Re: use case actors
Post by: 12224218101 on August 31, 2022, 07:32:14 pm
 A use case diagram shows the interaction between the system and entities external to the system. These external entities are referred to as actors. Actors represent roles which may include human users, external hardware or other systems.
Title: Re: use case actors
Post by: 12203218202 on September 02, 2022, 03:12:22 pm
Primary Actor is the one who is a guest to our software/product. He plays a temporary role in any project, but by knowing his requirements, the entire project is completed. Basically, he is a person who is our end user, whose needs are to be satisfied. for e.g. for any online food ordering application, the primary actors are customers, who request for home delivery of food items.
Secondary Actor is the one who is constantly providing services to our software/product. He is a permanent member of our project, who acts as a database or service provider. secondary actors is the one who satisfies the need of customer. for e.g. for any online food ordering application, the secondary actors are Restaurants, who takes the order and prepare the food for the customer.
Title: Re: use case actors
Post by: 12203218502 on September 02, 2022, 03:15:32 pm
A primary actor :-
                               acts on the system
                               initiates an interaction with the system
                               uses the system to fulfill his/her goal

A secondary actor :-
                             is acted on/invoked/used by the system
                             helps the system to fulfills its goal
Title: Re: use case actors
Post by: 12221274705 on September 07, 2022, 11:33:34 am
There are two types of actor
1-A primary actor:-The actor who initiates the action with the system generally showed the left of the system.
                               

A secondary actor:-The actor who helps the primary actor complete his action. Generally drawn left of the system.
 
                           
Title: Re: use case actors
Post by: 12218304606 on September 07, 2022, 07:50:51 pm
Actors are those who interacts with the System.
There are two types of actors that interact with the system. They are
1)Primary actor
2)Secondary actor

Primary actor: Primary actors are the one who primarily interacts with the system and are usually represented on left side of the system while drawing use case diagrams.

Secondary actors: Secondary actors are those who replies to the primary actor through developed system like Bank data base, printers, scanners and so on. Secondary actors are represented on left side of system in an use case diagram.
Title: Re: use case actors
Post by: Wilson Allen on September 08, 2022, 12:04:30 pm
Primary Actors are the ones who is going to handle the software for e.g. operator, etc.
Secondary Actors is something where the data is stored or retrieve for e.g. database, servers, etc.
Title: Re: use case actors
Post by: 12207348707 on September 09, 2022, 11:58:24 am
use case primary actor is 1 who directly interacts with the system.

Ex:  In a point of sale system, a customer walks into a shop, picks the required items and goes to the cashier for payment . here teh customer does not interact with teh system. The cashier cheks the items, cheks the quatity, generates the bill, process teh pmt, etc. The total ineracton with teh system is done by the cahsier. hence is is the primary actor.

Secondary actor here for the same point of sale - may be a database. On purchase the database shall send SMS to the customer mobile.

Database may not be a secondary actor in many of the cases. It may vary on the situation.
Title: Re: use case actors
Post by: 12210246903 on September 11, 2022, 12:54:48 am
A primary actor-
acts on the system initiates an interaction with the system uses the system to fulfill his/her goal

A secondary actor -
is acted on/invoked/used by the system helps the system to fulfills its goal

There is another way to classify actors, they can be:
Human
Systems / Software
Hardware
Timer / Clock
Title: Re: use case actors
Post by: 12221275205 on September 15, 2022, 03:55:47 pm
A primary actor :-
                               acts on the system
                               initiates an interaction with the system
                               uses the system to fulfill his/her goal

A secondary actor :-
                             is acted on/invoked/used by the system
                             helps the system to fulfills its goal
Title: Re: use case actors
Post by: 12206220802 on September 15, 2022, 05:23:16 pm
The person who starts a use case is the Primary actor.
A secondary actor is someone who provides specific assistance to the use case's completion.
The primary actor is typically positioned on the left side of the system boundary, and the secondary actor is positioned on the right side of the system boundary.
Title: Re: use case actors
Post by: 12116197312 on September 16, 2022, 01:13:11 pm
How to distinguish between Primary and Secondary actor?
Title: Re: use case actors
Post by: 12227345606 on September 16, 2022, 11:53:30 pm
In Use case there are two type of actor.
1.   Primary actor-who interface with system for any kind of action
2.   Secondary actor- where data are stored or other kind of business rule or governance body who participant in any use case diagram.
Example:
A bank loan officer wants to review a loan application from a customer, and part of the process involves a real-time credit rating check.
Use Case Name: Review Loan Application
Primary Actor: Loan Officer
Secondary Actors: Credit Rating System
Title: Re: use case actors
Post by: 12223224004 on September 17, 2022, 03:08:28 pm
Use case diagrams shows the interaction between the system and entities external to the system. entities referred to as Actors.
The use case has two actors.
1. Primary Actor
2. Secondary Actor

The primary actor could be anything living or non-living thing. and Secondary actors can be non-living things.
Title: Re: use case actors
Post by: 12227345606 on September 17, 2022, 10:20:24 pm
use case primary actor is 1 who directly interacts with the system.
Secondary actor are business rules, database with which system communicate or run
Title: Re: use case actors
Post by: 12226232702 on September 19, 2022, 04:25:35 pm
Actor is a living or non living thing. Actor stays away from the system boundary. Primary actor initiates the system to work and system depends on secondary actor for information.
Title: Re: use case actors
Post by: 12217204701 on September 20, 2022, 08:15:14 am
An Actor is the one who initiates an action with the system. Actors could be anybody from persons who are the users of the system to organization and system too. They are basically initiators of the system.
Primary Actor who initiates the process or action, rest all are secondary actors.
Title: Re: use case actors
Post by: 12221242902 on September 21, 2022, 03:49:58 pm
A use case diagram shows the interaction between the system and entities external to the system. These external entities are referred to as actors. Actors represent roles that may include human users, external hardware, or other systems. As mentioned, the three basic elements that make up a use case are actors, the system, and the goal. Other additional elements to consider when writing a use case include Stakeholders or anybody with an interest or investment in how the system performs.
Title: Re: use case actors
Post by: 12214261904 on September 21, 2022, 03:56:12 pm
Actors. A use case diagram shows the interaction between the system and entities external to the system. These external entities are referred to as actors. Actors represent roles which may include human users, external hardware or other systems.
Title: Re: use case actors
Post by: 12202326007 on September 23, 2022, 08:46:22 pm
Actors are classified into primary actors (also called active actors) and secondary actors (also called passive actors). Primary actors initiate a use case and hence are somewhat independent. Secondary actors, on the other hand, are used by the system but they do not interact with the system on their own.
Title: Re: use case actors
Post by: 12224219801 on September 24, 2022, 01:19:57 pm
Main Actor :-
affect the system
start interacting with the system
Use the system to reach your goals

Supporting Actor :-
processed/accessed/used by systems
help the system achieve its goals