PI15238: Deleting lifeline on diagram does not delete corresponding property in the model

APAR status

• Closed as Permanent restriction.

Error description

• In IBM Rational Software Architect (RSA), if you delete a
  lifeline from a (canonical) sequence diagram, that lifeline's
  property will not get deleted from the model itself.
  
  The following steps reproduce the problem:
  
  1. Create a UML project and model
  
  2. Add two classes
  
  3. Add a sequence diagram
  
  4. Drag the two classes onto the sequence diagram.  Take note
  that two attributes (or properties) are created under the
  collaboration.
  
  5. Delete one of the lifelines from the sequence diagram, either
  by pressing the 'DELETE' key or selecting 'Delete from Model'
  from the context menu
  
  6. Save the changes
  
  Expected Result: Because sequence diagrams are canonical, any
  changes to the diagram should be reflected in the model.  The
  lifeline's corresponding attribute therefore gets deleted from
  the model.
  
  Actual Result: The lifeline's corresponding attribute remains in
  the model.
  
  Workaround:
  Delete the lifeline's attribute within the Project Explorer.
  

Local fix

Problem summary

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  * USERS AFFECTED:                                              *
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  * PROBLEM DESCRIPTION:                                         *
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  * RECOMMENDATION:                                              *
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  Multiple attributes can be added under Collaboration in
  Project Explorer and we can make a lifeline reference an
  attribute as its represented property.
  

Problem conclusion

• Deleting a lifeline should not delete the attribute as that
  attribute would have been referred by other lifelines and
  they will lose the represented property. There is no way to
  differentiate whether a property was created while creating
  the lifeline or whether it was created manually by the user
  in the Project Explorer.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

Applicable component levels