Does it comprise the entire health field in the nation?.Phases of Operational research Formulation of the problem including definitions of the objectives. Implementing the solution in the whole system.Testing of solution eg : Pilot projects.Choosing the optimal solution and forecasting the results.Deriving solutions from the hypothesis or model.Analysis of data and formulation of hypothesis.Collection of relevant data, if necessary by a suitable sample.Formulation of the problem including definitions of the objectives.
Any formalized quantitative analysis whose purpose is to improve the efficiency in a situation where ‘efficiency’ is clearly defined.OR does not press upon the need of new techniques and new inventions, their demand is for systems composed of currently available techniques which give the optimal utilization of scarce economic resources.OR is defined as “ Application of quantitative methods to the solution of management problems which includes a systems approach in which a large number rather than a few factors are considered by a groups of scientists from different fields”.Today it has found application in most of the disciplines such as management, public administration, health, engineering etc.Attracted the attention of industrial managers who also were seeking solution to their complex executive problems.The success of OR in the 2nd world war demonstrated that many apparently complex problems could be usefully analyzed using simple models to approximate the critical variables and relationships.The term “Operational Research” was first coined during the 2nd World War.