I am looking for a schema or markup language to describe various parts of an IT system to describe them and to provide meta data like related artifacts, resposibilities, related persons and so.

For example:

• Git repository: What is it intended for? Who is the maintainer?
• Software system: What does it do? Which team is resposible? What are the requirements to run it?

Background

During my time spend in IT and software development I saw a lot of a forgotten services, servers, repositorys and no one knows about them. Even for currently used things like the one I mentioned above are essential meta data messing.

Therefore I would like to have a standard to describe and provide such information. In the ideal case this would allow me to scrape such information and to use it to manage such stuff.