I'm not sure if any reader has an idea about documenting your Service Oriented Architecture. But I thought about it, I can just ask. What are your ways to document a SOA?  I know the very useful tool called Word, but are there any industry standard tools to document your Services, their relations, versionin, functional and technical descriptions. I think it's also interesting to know what kind of things you are documenting about the SOA in general and the Services specifically. I'm waiting for your reply's.