[Beg-bogas] artemini service?? en DB schema

we need to implement stuff to allow users to merge models!! * do we need to allow people to change the tag (CDS, CDS_after,...) of a model? that would allow them to 'merge' models (because you can only merge models with the same kind of tag, and you need to be able to tag is as 'CDS' to be processed) * merged models will be inserted without a problem. but then the problem starts... ** then we need to make the overlapping models obsolete. (maybe use the locked table for this??) ** the query for the 'context' (and so) will need to be changed to deal with these obsolete models. L.