software is incomplete.
The hardest part of the software task is arriving at a complete and consistent
specification, and much of the essence of building a program is in fact the
debugging of the specification.
— Fred Brooks
Draft Specifications & Working Copies
We aim to provide interoperability, which implies working to open standards. Of course, that may mean creating new standards.
We publish all versions of our specifications here, including expired documents, and those yet to be published elsewhere. The latest version is typically the current working copy.