How can we design improvement in large systems without understanding the whole system, and if the answer is that we cannot, how is it possible to und… - C. West Churchman

The idea of a ‘system approach’ is both quite popular and quite unpopular. It’s popular because it sounds good to say that the whole system is being considered, but it’s quite unpopular because it sounds either like a lot of nonsense or else downright dangerous – so much evil can be created under the guise of serving the whole.

An objective of O.R. as it emerged from this evolution of industrial organization, is to provide managers of the organizations with a scientific basis for solving problems involving the interaction of the components of the organization in the best interest of the organization as a whole. A decision which is best for the organization as a whole is called optimum decision.

O.R.'s initial development began in the United Kingdom during World War II and was quickly taken up in the United States. This start took place in a military context. After the war O.R. moved into business, industry and civil government. This movement was slower in the United States than in the United Kingdom but in 1951 industrial O.R. took hold in this country and has since developed very rapidly.