FYI, I just pushed a few commits. The most important changes are: • Section describing how to combine multiple descriptions of the same object. • Text about unnamed objects (without id) (see issue #45) • Allow encoding attribute for Bidirectional Port and Bidirectional Link • Add list of all attributes with pointer to where they are defined. • Add list of all parameters with pointer to where they are defined. • Explain how objects, attributes, parameters and relations are represented in XML • Explain how objects, attributes, parameters and relations are represented in OWL Roman -- could you take a look at the "labeltype" attribute? I think it is still "type" in XSD and XML examples. See also https://forge.ogf.org/sf/go/artf6577 Regards, Freek