Is a schema or document definition (DTD) covered by the document or software terms?
Schemas (and DTDs) are frequently part of our specifications and seemingly fall under the document copyright terms. However, as long as you do not use the same formal namespace or public identifier to identify that modified OGC schema/DTD (which might confuse applications), you may treat the schema/DTD under the software terms. This means that you are permitted to make a derivative or modified OGC schema/DTD, but even under the software terms you are obligated to include/retain the OGC copyright notice. We further appreciate a couple sentences regarding who made the modifications, when, and what changes were made in the original DTD — a common software documentation practice. We expect to revisit this topic as metadata schemas become an increasingly important part of OGC specifications and as the metadata schema definition capabilities of XML and other XML technologies advance.
