@mlinksva Thanks to participate in both discussions.
Well, there are many “open issues”, let’s check first here if there are some (or all) consensual opinion. Listing basic opinions and hypothesis, that I used, for to think about openness metrics:
How we view the licenses and the license diversity… My view is compatible with the view used here? More open is “less transaction cost” and “less freedom-restriction clauses”?
The “score of openness” general ideia: it is a valid ideia for some specific contexts?
2.1. is valid, for statistical and etc. analysis, to group licenses in families? Example: to group CC0 family (CC0-v1.0, DLDE-Zero-v2.0, ODC-PDDL-1.0, PDM, etc.); CC-BY family (CC-BY1, CC-BY-2, CC-BY-3, CC-BY-v4, CC-BY-v2, DLDE-BY-v2.0, GFDL-v1.3, ODC-BY-v1.0, OGL-UK-v1, OGL-UK-v2, etc.); etc. families.
PS: even copyrighted works, in copyright0 or copyright-apy families.
2.2. is valid and make sense, for a summarization in a big collection (ex. articles of PubMed Central), to show the family distribution? (chart or table of percentages in participation of each family in the collection).
2.3. is valid to associate an armitrary score (ex. 0-7) to each family, and calculating score averages, to characterize coarsely the collection by this average number?
(supposing item 2 is a consensus) Is better to average only “coherent sets of families”, within which the quantitative average make sense? (see ACME collection illustration below) The election of “coherent scope” is a matter of qualitative sense in the range of scores.
The item-3 is also a suggestion: to ignore names for a moment, focusing in the family grouping (scopes)… So, the illustrated scope names OD (Open Definition), OA (Open Access) or RT (ResTricted by copyright) are only arbitrary labels for scopes (score ranges).
PS: in both cases, family and scope names (labels), the names are arbitrary… The names that I elected, use the same naming rule than biologists (canonicalization), that elect the most popular element in the taxon because is stable and a good mnemonic.
Glossary (this interface not works with more than 2 links)