In case another newbie comes along, here are some notes. I looked for the web framework but it's not available to check out yet. However, I eventually figured out that if we define an XSD in the data dictionary, then create a Web project that includes that document type, when we create content for that XSD we implicitly get built an XForm that is invoked when we select the edit content option. This is a rudimentary XForm (as yet) for which we don't have direct control over edits, logic, etc., nor do we have access to the XForm itself. Ability to edit that is a future goal.