Let's consider this thinking inside and outside the box thing again... 'I'll tell you what I want it to do and you work out how it's going to meet my needs'. The reason we write requirements, after all, isn't because we like writing. It's because we want someone else to do something. Specs are a way we can try and conduct the work of multiple teams working in parallel. The intent being that when they all do their job well, we'll end up with a sum of parts that actually mean something. The same patterns apply to good MBSE with SysML.
Understand the art of the possible. My mission is to make executable Model-based Systems Engineering (MBSE) easy with the Object Management Group's Systems Modeling Language™ (SysML®) and UML® to make simple modeling easy to deploy to the masses. This site provides practical experience of tuning IBM® Rational® Rhapsody® - a precision engineering UML/SysML tool. Rhapsody tips and ideas will be posted with links to videos. You can follow by email (if google app is allowed).