use case actors

[1183170103]

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.

[1180364903]

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.

[1181472704]

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.

[1181471104]

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.

[1181278305]

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 .

[1181280005]

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.

[viswanathan]

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

[viswanathan]

what is actor generalization explain with example?

[viswanathan]

Explain with any example for system initiates(Actor),time triggers,automation use case?

[1182459601]

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.

[1180793807]

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.

[1181278605]

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.

[1182916109]

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.

[1191940101]

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

[1191648502]

Primary Actor - Primary actors are the one who initiates or perform some action .

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