Accompa allows you to assign 7 different types of relationships between requirements.

1. Requires
2. Is Needed By
3. Supersedes
4. Is Superseded By
5. Is Child Of
6. Is Parent Of
7. Is Related To

These relationships are mutually exclusive -- i.e. two given requirements may have only one relationship between them.

#1 and #2 above are inverse of each other - and should be used when one requirement is dependent on another requirement.

Similarly, #3 and #4 are inverse of each other - these should be used when one requirement has superseded another, or when there are duplicate requirements.

Likewise, #5 and #6 above are inverse of each other - and should be used when one requirement is a child of another requirement. Child requirements can be displayed using an "interactive tree" in any SmartView.

Use #7 when two requirements are related, but the relationship does not fall under one of the other 6 types.