In this paper the issue of how OR is related to science and technology
is revisited. An earlier argument that a modern view of science and t
echnology offers a better explanation of this relationship than a trad
itional view is strengthened and developed. Using concepts drawn from
the sociology of scientific knowledge (SSK) a new perspective on OR pr
actice is introduced and shown to offer different insights into the wo
rk of OR practitioners and the way OR may be understood in relation to
science and technology.