A document management tool needs to track versions of documents, allow business people to search for and retrieve documents and, ideally, integrate with common document authoring software. It doesn't seem to me like those requirements are very different. What differs, really, is the type of audience that uses the tools. But it was a step toward recognizing that sometimes people wanted to mix and match development tools and repositories from different vendors. Today, different people are coming up with different answers to that question.
Some people say that HTML is source code, and some people say that it's a document.
With a common WebDAV interface, it doesn't matter wether or not the repository is a source code repository or a document management repository. There are still, however, a number of products that haven't supported WebDAV as quickly as we might like. Slide is a project by the Apache Software Foundation. Windows is a registered trademark of Microsoft Corp. Sun, Sun Microsystems, Java and JavaServer Pages are trademarks or registered trademarks of Sun Microsystems.