What you currently see is just the beginning of a conversational design.
A couple of questions and the illustration below gives you an idea of a conversation between a program and a designer.
While the designer starts with a big picture, the program helps her or him with smaller details.
Building a web application is a good sample.
Keep in mind that a web site will have a set of operations that requires user privileges. What user types do you expect to visit the site?
List user types with their related privileges like in the samples below
userType1-privelege1,privelege2.
userType2-privelege1...
Use as many lines as user types you would have. One user type per line.