Product and version
Astah Professional, UML Version 8.1
When Operations are allocated to the Messages in a Sequence Diagram from the BaseClass of lifeline, rearranging the order of those Operations in Class Diagram by mouse will clear out the allocation.
- Create a Message in a Sequence Diagram and allocate an Operation from the Base Class of the target Lifeline.
- Go to the Class Diagram and rearrange the order of the Operations by mouse.
- The Message will lose the Operation setting and it says “Unspecified” again.
When you rearrange the order of operations, use Shortcut keys (Ctrl/Cmd + ↑ or ↓ ) instead of using a mouse. (See the whole shortcut key list)
Plan to fix
Will fix in the next update which we plan in this Fall.
Thank you very much Randal for reporting this bug!