A workspace typically contains documents of entity doctypes. A topic space is a collaboration space where information is added quickly without the burden to think about an organization scheme in advance or care for updating the information. A team may use a workspace to run a spike or an iteration and decide after the work is done (and knowledge on the subject has been gained) which information is worth to be preseved (in a topic space) and which will simply be archived.

A diary or journal is also a workspace. The key is that pages in this space do not need to be updated. They are considered records instead of documents.