issue-51 too many global rules

Hi all,

as an input to issue-51, to the "global rules" part. I went through the new
data categories. Below are some proposals. In the cases there the "main
function of global rules, to define stable information about a document
format" (adapted from Yves' mail), I propose to drop global rules.

- Domain, LocaleFilter, external resource, target pointer, preserve space,
allowed characters, storage size, id value: keep global rules as is.

- QualityIssue, Quality Precis, Disambiguation, mtConfidence, text analysis
annotation, provenance: drop global rules. It seems that rules here don't
fulfill the main function mentioned above. That is also related to the
aspect of adding a closed set of metadata values, like "yes" or "no" for
translate. That makes sense for a document format, e.g. "all code elements
are translatable". But it doesn't make sense for the six data categories:
they don't add a closed set but rather open sets of values, e.g.
mtConfidence score =0.5. These will probably not be specific to a document
format.

Thoughts?

Felix

-- 
Felix Sasaki
DFKI / W3C Fellow