Difference between include and extend relationship

UML, include, extend relationship - Stack Overflow

difference between include and extend relationship

An include dependency, formerly known as a uses relationship in UML v and earlier, is a The best way to think of an include reality is that sometimes you use different. UML use case include is UML relationship between two use cases to show that Note, while UML 2.x defines extension points for the extend relationship, there the base use case Payment is not complete by itself and all different kinds of. The key to Include and extend use case relationships is to realize that, common to represent a different flow as the main scenario and this should not matter).

All of the behavior of the included use case is executed at a single location in the including use case before execution of the including use case is resumed.

difference between include and extend relationship

Note, while UML 2. Including use case depends on the addition of the included use case, which is required and not optional. It means that including use case is not complete by itself, and so it would make sense to refer to the including use cases as abstract use cases.

Neither of UML 2. A number of other UML sources define abstract use case as including use case, while in fact it has to be the other way around: See discussion of the definition of abstract use cases.

UML Use Case "extend" and "include" relationships

So I'm currently creating an UML Use case diagram to describe the basic features of my application I'm planning to develop and it always happens again to me that I come to the point where I have to search the web about the details regarding the "extend" and "include" relationships.

Just out of the head it seems to be clear: But still there are these doubts This behavior is modeled with a base use case called CheckOrderStatus that has an inclusion use case called LogIn. The LogIn use case is a separate inclusion use case because it contains behaviors that several other use cases in the system use.

difference between include and extend relationship

An include relationship points from the CheckOrderStatus use case to the LogIn use case to indicate that the CheckOrderStatus use case always includes the behaviors in the LogIn use case. The "extend" relationship is explained as follows: Basic Course of Action: An applicant wants to enroll in the university. Forms Not Filled Out] 3. The registrar visually inspects the forms. The registrar determines that the forms have been filled out properly.

Include relationship in use case diagram(In hindi ) by Hightech

Forms Improperly Filled Out]. The registrar clicks on the Create Student icon.

difference between include and extend relationship

The registrar inputs the name, address, and phone number of the applicant. UC34 Perform Security Check. Applicable to Step 17] 8.

difference between include and extend relationship

The system determines that the applicant does not already exist within the system according to BR37 Potential Match Criteria for New Students. The system determines that the applicant is on the eligible applicants list. Person is Not Eligible to Enroll] The system adds the applicant to its records.

UML Use Case Extend

The applicant is now considered to be a student. The registrar helps the student to enroll in seminars via the use case UC 17 Enroll in Seminar. The student pays the initial fee. The system prints a receipt.

UML Use Case Include

The registrar hands the student the receipt. The use case ends. Include Dependencies Between Use Cases A second way to indicate potential reuse within use-case models exists in the form of include dependencies.