currently if multiple projects use the same server for deployment, we are relying on inheritence to share the definition, or it must be copied. This applies similarly to the SCM connection and the dist/site management settings.
It would be a good idea to be able to declare these elements in a deployed artifact.
It may still be reasonable to do this through inheritence, but there is a chance we'll hit the need for multiple inheritence (because multiple projects inherit things from different sources), so we should enumerate the use cases and verify it.
/ \ / \
C D E
Where A and B declare two different things that D uses both of, but which C and E desire only to inherit one of.
This essentially using composition for some elements instead of inheritence.