Let the experts handle this stuff. How many times have you found some super important production piece being handled in a disaster of Excel and 400 different versions all named ridiculous things, and nobody knows which is the right one to use? Why? Because they didn't bring software development in soon enough.
0: Librarian is our commonly understood word for the broad profession of information management, but the experts tend to have many different job titles for their discipline, get a subject matter expert(I'm not one) to help you track down the right job title for your specific project.