Hi Dirk,
this is what I've done ...
1. I have a physical mapping of two source attributes into one target attibute in the mapping editor -> for linage/impact analysis purposes
2. A textual description of the logic in the source expression ... it's SQL, but could be also free text
Looks like this:
This is my only idea how to document this in a way we can utilize some of the tools standard functionality (line linage/impact analysis) and have also the logic documented somehow...
So finaly the impact/linage shows this:
What do you think?
Regards,
Rafal