[Mediawiki-l] Separate database structure?

[B W]

In the context of an educational project, I would like to offer several case
studies on a wiki. In that way, students will be able to add alternative
solutions to case-problems and contribute to their own learning material.

My question is whether it is possible to (more or less) separate the
case-descriptions from the other data that's within the database behind the
wiki? In that way it could become possible for example to add a
case-description directly to the database behind the wiki, instead of adding
it to the database through (= by making a wikipage on) the wiki.

Thanks in advance for any help!

Birger