General developer forum

The IMS Tools Interoperability Project
http://www.imsglobal.org/workinprogress.html
is one of the 1st "standards" based efforts to utilize
Web Services. In the current project, an initial "Guideline"
(read not yet a fully formed Specification) is being done.
The idea is to "launch" some external tool and to return
"results" to an LMS. Both launch and results are done with WS.

At the Alt-I-Lab 2005, see http://www.imsglobal.org/altilab/index.html,
the IMS TI project will show off where things are at.
UW-Madison is providing a new tool, ConceptTutor,
as one of the external tools. LMSes include BlackBoard,
WebCT, Sakai.

See http://engage.doit.wisc.edu/projects/ConceptTutor.
These are like a "glossary on Steroids". Best suited for some
content repository. Also has an embedded "assessment" (see the
Check tab). The results returned would be from there.

This would be an interesting use of Web Services within Moodle.
Not all that much to implement. And when we get back
from Alt-I-Lab (I'm on the demo team), we should have some
better sense of whether this is ready for prime time.
Our current implementation uses Fedora for the external content repository,
using an Axis "side car". Perhaps edukaLibre could work.