Hi,
While working with OGC standards I sometimes find things that I like and that I find useful for TDWG. One of the most important documents in OGC is the OGC Reference Model (ORM). Maybe you were aware of it already, but just in case:
"The ORM provides the overall conceptual framework for building geospatial processing into distributed systems in an incremental and interoperable manner. The ORM is a living document and is updated periodically as OGC memberships continues to advance geoprocessing interoperability"
or
"The OGC Reference Model (ORM) provides an architecture framework for the ongoing work of the OGC. Further, the ORM provides a framework for the OGC Technical Baseline. The OGC Technical Baseline consists of the currently approved OpenGIS® Specifications as well as for a number of candidate specifications that are currently in progress. "
You can find the document at
http://portal.opengeospatial.org/files?artifact_id=3836
I think TDWG - TAG should be in charge of maintaining such a document if you find it interesting. I like it very much because, the first time I approached the OGC community, it helped me to understand what was going on, which standards exist, how the interrelate, etc. Let say that it helps you to get the "overall vision".
I don't mean that we should use the same technology or strategy!! I just like the idea of having a document like this whatever technology we create/use (although I like it very much ;) )
Javier.