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Accompa allows you to assign 5 different types of relationships.
- Includes
- Is Included By
- Extends
- Is Extended By
- Supersedes
- Is Superseded By
- Is Related To
These relationships are mutually exclusive -- i.e. two given use cases may have only one relationship between them.
#1 and #2 above are inverse of each other - and should be used when one use case includes another use case.
Similarly, #3 and #4 are inverse of each other - these should be used when one use case extends another.
Similarly, #5 and #6 are inverse of each other - these should be used when one use case has superseded another, or when there are duplicate use cases.
Use #7 when two use cases are related, but the relationship does not fall under one of the other 6 types.
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