External Requirement Does NOT Show

[ttliu2000]

Another question..

I want to create a external requirement for a Use Case and checked the manual:

"External requirements are those requirement elements that have been linked to the current element using a Realization link. By creating the link from the element to the requirement, the element now has a responsibility that it must implement as part of the system solution. "

It seems that external requirement is supposed to show up after I link Actor and Use Case with a Realization.

I did that but can not find external requirement.

Can somebody tell me what's going on? Thanks..

[thomaskilian]

You can make requirements external inside the according tab of the properties (Move External). You'll have a Requirements element afterwards. You can achieve the same effect by creating a Requirement (from the Tools) and link it via Realize relation to  the Use Case.

[Dermot]

You can also drag an existing Requirement Element from the Project View onto an  Element (Use Case) and this will create the Realisation link and log it as External Requirement in the Use Case.

[thomaskilian]

It would be nice to have some kind of "What happens when element type A is dragged over element type B"-documentation for diagram/diagram, project view/diagram, project view/project view drag operations.