sentences:  Where the old SCC API required its implementation to always follow the CheckOut-CheckIn principle, the new SCC VAPI just passes individual requests to the SCC API.This allows implementations to fully replace the usual workflow with the Update-Merge workflow Subversion usually provides.Just like the old SCC API, the new SCC API makes the projects aware that there is a SCC provider, to which they should communicate which files are part of a projects source and which are just intermediate or output files.