Workbench module without taxonomy vocab Is there a way to use a workbench module for workflowing purposes without having any taxonomy vocabularies defined?
Your question is too vague. Workbench is a Suite of modules: Moderation, Access, Files, Media ...

Workbench Access can work with Taxonomies or Menu hierarchies.

Currently Workbench only works with data whose base type is a Node it does not work with custom Entities you may use on your site.