I have used both ClearCase and ClearQuest at a previous job. The former is surprisingly pleasant to use, although we had a wrapper program called GVP (Gather Va

I have used both ClearCase and ClearQuest at a previous job. The former is surprisingly pleasant to use, although we had a wrapper program called GVP (Gather Validate Publish) [1] that handles commit messages and regression testing before publishing to "master". ClearQuest itself also has a very 1990's X11 GUI you can use that has a surprising amount of functionality. The best feature of ClearCase is that with mvfs you can clone the repo in seconds since it's a virtual filesystem. A small database records your changes, and functions as a sort of overlay on top of the version you've "checked out". ClearQuest was nice in that you can write your own SQL select queries to create bug lists. I don't remember if you could write DB-specific stuff (Oracle in our case) or if it had to be ODBC compliant. Unfortunately everything else about it kinda sucks. [1] https://sourceforge.net/projects/releaseworks/ https://sourceforge.net/projects/releaseworks/