CH1 OR Operations Research models are designed to A solution is feasible if A solution is optimal if The most prominent OR technique is Algorithm Queueing and simulation models General OR model format The first formal activities of Operations Research (OR) were initiated in Heuristics or metaheuristics. Phases of an OR study (Orden: DCSVI) Definition of the problem Construction of the model Solution of the model Validation of the model Implementation of the solution. Art of Modeling Art of Modeling Production Department Materials Department Sales Department. CH2 PM Project Project management Task Subtask Work package Project milestones The work breakdown structure Activities. CPM Critical path a = Optimistic time m = Most likely time b = Pessimistic time Time-Cost models Minimum-Cost scheduling / “crashing”. CH3LP & 4SM Linear programming Basic components The objective and the constraint function in all Linear Programming must be Any values that satisfy all the constraints determined in the model, constitute The goal of the problem is to find the Simplex method Requirements The Simplex Method always starts at the origin where all the decisions variables are.
