Management Science Lecturer Sihem Smida Chapter 1 Introduction to Management Science 1- 2 Outline What is Management Science? How to apply Management Science technique? Types of Management Science Models/techniques 2 1- 3 Management Science Management science uses a scientific approach to solving management problems. It is used in a variety of organizations to solve many different types of problems. It encompasses a logical mathematical approach to problem solving. 3 History of Management Science It was originated from two sources: – Operational Research – Management Information Systems It is thus more emphasizing on the analysis of solution applications than learning their on how models were derived. Other names for management science: quantitative methods, quantitative analysis and decision sciences. 4 1- 4 1- 5 Management Science Theory Contemporary approach to management that focuses on the use of rigorous quantitative techniques to help managers make maximum use of organizational resources to produce goods and services. 2-5 1- 6 Management Science Theory – Quantitative management — utilizes linear and nonlinear programming, modeling, simulation, queuing theory and chaos theory. – Operations management —techniques used to analyze any aspect of the organization’s production system. 2-6 1- 7 Management Science Theory – Total Quality Management (TQM) — focuses on analyzing input, conversion, and output activities to increase product quality. – Management Information Systems (MIS) — provides information vital for effective decision making. 2-7 Steps in applying Management Science techniques 1- 8 (1) (2) (3) (4) In practice, this step is critical (to p6) (5) 8 1- 9 Steps 1. 2. 3. 4. 5. Observation — Identification of a problem that exists in the system or organisation. Definition of the Problem — Problem must be clearly and consistently defined showing its boundaries and interaction with the objectives of the organisation. Model Construction — Development of the functional mathematical relationships that describe the decision variables, objective function and constraints of the problem. Model Solution — Models solved using management science techniques. Model Implementation — Actual use of the model or its solution. 9 (to p9) 1- 10 Models to be considered in this subject * * * 10 1- 11 Characteristics of Modeling Techniques • Linear mathematical programming: clear objective; restrictions on resources and requirements; parameters known with certainty. • Probabilistic techniques: results contain uncertainty. • Network techniques: model often formulated as diagram; deterministic or probabilistic. • Forecasting and inventory analysis techniques: probabilistic and deterministic methods in demand forecasting and inventory control. • Other techniques: variety of deterministic and probabilistic methods for specific types of problems. (to p11) 11