Mustvo answers
Every answer below is aimed at a question people measurably search for, is written from named sources, and links to the page that handles the job itself. None of them is a landing page in disguise.
The answers here are the questions that come up while somebody is writing down what a system has to do before they choose one: what kind of line they are writing, what it will decide once vendors are scored against it, and which of the free sheets on this site works the figure it produces. Each one hands off to the checklist guide and to the sheet, with no account.
- Functional and non functional requirements: the difference between functional and non functional requirements, and functional requirements vs non functional requirements on one weighted list
What functional and non functional requirements each decide when you choose a system, how to weight them, and the free sheets that score both.