As Gadrin has correctly divined, I was thinking of producing material that might be useful to other GMs than myself. That would be best done by fitting into the widest possible number of campaigns, which means no assumption clashes with canon.I'm still kind of scratching my head about the question.
I mean, each setting is different. Use Traveller, use Your Own TU. Use Star Trek.
I'm not entirely discouraged yet, but it is looking pretty difficult. It will at least be a long time before I am able to write canon-compatible Traveller material.