Key information relating to requirements production is either lost or
unrecoverable as a consequence of conventional requirements engineerin
g practices. This includes, most significantly, information about the
individuals and groups from whom requirements were originally elicited
and by whom they were subsequently refined. An approach is outlined o
f rendering such information traceable, which anchors requirements and
development information in the contribution structure from which it a
rose, and enables the workings of the requirements production process
to be revisited in later phases of development. It is demonstrated how
the use of the approach can prevent the premature freezing of require
ments elicitation and allows us to establish the consequences of organ
isational change.