Donald Firesmith - Ian Alexander - Cesar Gonzales-Perez - Tyson Browning
in front of St Basil's Cathedral, Moscow, after the RuSEC conference.
By the way this building is not the Kremlin, nor even part of it!
The diagram shows how requirement elements such as goals, scenarios and
priorities
interact to define the problem to be solved by a system;
how they integrate all other project activities such as system design,
trade-offs, and test;
and how requirements in the large (green boxes) consist of far more than just a
list of functions.

More about Requirements Discovery...