Requirements must be documented clearly so they can be communicated and tested.
Mastering the Requirements Process: Getting ... - Amazon.com
A core Volere principle is that every requirement must be measurable to avoid ambiguity.
: Is it truly necessary for the business goal, or is it just an expensive "extra"? 6. Managing the Process
: Focus on external events that trigger a response from the business (e.g., "Patient books appointment").
"Trawling" is the active process of uncovering what stakeholders truly need through various elicitation techniques.