Composite Diagrams

[j76nm5]

It seems that when I instantiate an operational activity with a use case, that my ability to link to a composite diagram of my choice disappears. If I have already linked the operational activity to a composite diagram the link remains.  But if I want to select a new composite diagram to link to I no longer have that option.  Is that correct?

[Nizam Mohamed]

which version of ea are you using.  You should still be able to change the composite diagram by right clicking on the element (in diagram) - new diagram - select composite diagram

[j76nm5]

We are using Sparx EA 10. I just confirmed the problem in the model we are using.  Once I instantiate an operational activity I can't select a composite diagram for it.  We are using the UPDM 2.0 add-in.  Don't know if that is causing the problem or not.

[KP]

If I understand you right, what you are doing is creating an Action that invokes an Activity. You will need to either select the Action and press Ctrl+L to change the Activity that you are invoking, or select the Activity and change its composite structure diagram.

[j76nm5]

It is difficult to explain, but here is an example of what I am doing:  
1. I create a use case called "Do X"
2.  I create an activity diagram called "Process Yankee Activity Diagram"
3.  I create an operational activity called "Do X" on that activity diagram.
4.  I right click on the operational activity called "Do X">advanced>instance classifier and select the use case called "Do X"
5. I then create an activity diagram called "Decomp of Do X Activity Diagram" for the operational activity called "Do X". The purpose of the activity diagram is to "break open" the operational activity called "Do X".
6. I then go back to the operational activity called "Do X" which is on the "Process Yankee Activity Diagram , I right click on it>New Diagram> Select Composite Diagram.  I do not get a window to select the activity diagram called "Further Decomp of Do X". I thought I should be able to .  

What am I doing wrong?

[KP]

Step 5, use the "Composite Structure Diagram" command to create a new activity diagram beneath the "Do X" activity and name it "Decomp of Do X Activity Diagram". Then you won't need step 6.