Start with portal scope
A portal can quickly become too broad if every team asks for a dashboard, a file area, a status feed, and a private workspace at the same time. Portal Scope and Role Map Review starts by defining what the first portal version should support.
The goal is not to make the portal small forever. The goal is to make the first version understandable, safe, and useful enough that each role knows where to look and what to do next.
A portal that exposes too much or too little can create confusion before it creates value.