Yes. A “document sheet” and a “document description” are really the same things, and if you are not using the sheet functionality (i.e. you keep it as 1 or - or whatever), you can think of revisions only.

But if you think about them as sheets, they are as separate as the revisions, when it comes to access, approval etc. When it comes to object connections a sheet is even more of its own “thing.” You can have several sheets of the same document (title) connected to the same business object, but the sheet numbers need to be different.

Also, if you use/think about the sheet concept, we are creating revisions of sheets, and not the other way around.

We think sheets are not used that much, but it can be a handy option when you want to split “a document” into several different files. The requirement came from the electrical engineering/electrical CAD people many years ago. For them, “the document” could be a multi sheet paper drawing, covering a complete electrical cabinet, where each sheet represented one part of the cabinet. Another, more made up, example is to use a sheet for each chapter of a book or manual, although that scenario fits quite well as a document structure too.

Don’t be afraid to use “strange” sheet numbers when you need to. They can contain both letters, numbers and possibly some symbols as well (but do not go too wild here, the more “special” characters we use, the higher the risk that something breaks down the line, perhaps years from now), so a sheet can represent a language code, if needed, and similar.

Whats the maximum number of documents that can be attached to a project?