What is the best Data-License to be used for Organisational-Profiles shared between all transition-projects and sustainable consumption maps in europe?
As long as we have a read-only System, that just aggregates data, and does not compare, merge or redistribute them, (like Transiscope does so far https://transiscope.org/alternatives-web-portal/) each platform can define their own licence under which the data can be used. Minimum licence is CC BY-ND (Creative commons -NoDerivatives)
There is just the problem, that you might get a lot of duplicates, if the same entry exist on different platforms (and this happens quite soon, as visionary entries are on many maps). And for editing one entry, you have to register or notify the owner-plattform(s).
Merging and Editing
If you want to avoid duplicates, you have to merge several entries and aggregate all information into a final one. This is only possible, if all entries are CC0 (Creative-Commons whithout limitation) or ODbL (Creative-Commons share alike).
You can not compare and merge those entries with a „read-only“ licenced entry, as the result will always be a modified, improved information of this. When ever you use a „derivative work of the Database“ you have to relicense it again in the same licence (that means share alike).
The question is: If I just compare a raead-only (CC BY-ND) entry and a share-alike (ODbL) entry, and hide the first one when realizing it is a duplicate, without using any of the information (except that it is a duplicate), is this allowed? ( The licence sais: If you remix, transform, or build upon the material, you may not distribute the modified material.) Do I build upon a duplicate, if I just `compare and delete it?
What Datamodel do you suggest?