I am trying to find XML Schema (XSD) versioning system. The reason is that I need to conduct a study on managing XSD versions with all its related issues. Such issues include storing and retrieving the right version, find changes between successive versions, and measuring the quality of the generated version.
For this I have to compare features of my system with already existing systems.
If you can provide me with tools that can perform one or more of the previous tasks that would be great.