A new version of schemas and exchange model is available on the download section

Here are the main change in this version vs last public one (0.8)

V1.0 (04/08) public version
MODEL
WebLabRI modification to be more generic (xs:anyURI).
Resource modification: Resources can now optionally contain a list of LowLevelDecriptors.
LowLevelDescriptor (previously in multimedia.xsd) modification: Feature have now optionally a label and handles directly a list of simple types. They are now defined in model.xsd.
Query (query.xsd) modification: Specialisation of each type of queries (Structured, Semantic, Composed, Universal, Full Text and Similar).  
LargeContentMediaUnit => BinaryMediaUnit. 

INTERFACES
Modification of URI parameters to be more generic (xs:anyURI).

SAMPLES
Samples now take in account new interfaces definition.

ONTOLOGY
Creation of the WebLab ontology providing 7 specific properties for the annotable (Resource) part of the model.