Today’s Methodology that you didn’t ask for is called ‘Checklist Thinking‘, and it’s described here in excited tones.
I’ve got to give respect to those people who can reinvent something, concoct some new terminology and then give the whole thing a name. ‘Checklist Thinking’ is another way of describing a decent requirements gathering process, with traceability included. I usually go further and include business rules in this as well.
So add this to the list of things you’re probably already doing.