Thanks. 

In this doc https://oslc-op.github.io/oslc-specs/specs/cm/change-mgt-spec.html
the spec seems a bit empty. Is this normal? There is no introduction into the spec. 

FYI, I found that several links were broken. 

However, I was able to see the vocab at https://oslc-op.github.io/oslc-specs/specs/cm/change-mgt-spec.html