I'm in the process of defining a GML schema from a database schema, the idea is for it to be GML simple feature compliant. However I can't find a way to confirm this compliance other than reading the spec and manually checking. I'd feel happier if there was an automated tool I could pass the schema to which could check all was well. The existance of this sort of tool is hinted at in the spec (Appendix A) but I can't find one.
Does anyone know of such a tool?