Hi, Maybe I'm looking that the specifications too long, but it seems you can place more than one term in a query named space... for example, a query named space '/network/' could refer to both the occi scheme and a private scheme. There is no requirement that identical 'terms' used to describe a resource category to have a similar or the same functional characteristics as terms defined in the occi scheme. There is a mention of an "entity_type" to "Entity type uniquely identi fied by the Kind instance." However it doesn't say "entity_type" uniquely "identifies" the Kind Instance. The only way to uniquely identify a Kind is by scheme:term. And this leads back to the issue with the query It looks like the query name is the category's "term" but we do not have a way to filter in specific schemes. cheers, gary