Include and Extend in Use Case

Include is used to extend the base use case and it is a must condition ie. Now lets look at the extended diagram.

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We now modify the base Use Case Take Customer Order to refer to the included Use Case Identify Customer.

. Association between actor and use case. Exclude on the other hand is optional use case. Basic Withdraw Cash use case stands on its own without the extension.

Include vs Extend Use Cases. In the include relationship the base use case incorporates the include use case. The extended use case executes only when the condition is true.

Included use case run must run successfully to complete base use. Ten people are dead and at least 15 people. Notice how connections have changed.

But in the extend relationship the extended use case adds its behaviour sequence to the base use. Generalization of an actor. So lets say my use case is a dashboard application where the user has.

There can be 5 relationship types in a use case diagram. Include is used to extract use case fragments that are duplicated in multiple use cases. To represent complex relationships between different use cases we can use the extend and include relationships.

Extend between two use cases. Include is used to extend the base use case and it is a must condition ie. The use case is optional and comes after the base.

The example shows uploading photo and video use case with optional use case of applying filter. Included use case run must run successfully to complete base use. Exclude on the other hand is optional use case.

The included use case. When an actor initiates any base. RCMP say they are looking for two men suspected of stabbing multiple people in James Smith Cree Nation and in Weldon Sask.

Example 2 contd Use Case. Visual Paradigm Community Circle UML Diagrams Use Case Diagram Include and Extend Use Cases This use case diagram example depicts a model of several business use cases. Include Use Case - The include use case never stand alone.

Take Customer Order Basic Flow. To specify the location in a flow of events in which the base use case includes the behavior of another write include followed by the name of the use case. Arrow is placed near the included.

So if we want to make use of use case diagram we need to keep it generally and in terms of the use case. 1 The driver asks if his guests want Wendys or Burger King 2 The guests choose they want Burger King extend to eating at Burger King use case 5 3 The guests choose they.

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