# Gauhati University - M.Com Distance Syllabus: Operations Research & Computer in Business

2.8 Operations Research & Computer in Business

Group-A: Operations Research

Unit I: Origin and development of Operations Research (O.P.), phases of O.R., characteristics of O.R. model, role of O.R. in managerial decision making, use and limitations of O.R.

Unit II: Linear Programming Problem (LPP)
Meaning, uses and limitations, formulation of general LPP, solutions of LPP, solutions of LPP by graphic method and simplex method, artificial variable technique, duality in linear programming, economic interpretations of dual variables.

Unit III: Assignment and Transportation Problems: Concept of assignment problem; transportation problem: definition, mathematical formulation of transportation problem, to find the initial basic feasible salutation, to derive optimal solution by Modi Method, difference between a transportation problem and an assignment problem.

Unit IV: Theory of Games and Investment Analysis: Theory of Games: Origin, two person and zero-sum (rectangular) game, strategy, maximin and minimax criteria of optimality, saddle point, solution of a rectangular grime with an without saddle point, limitations of games in competition; Investment Analysis: methods of investment analysis, breakeven analysis, payback period method, average (accounting) rate of return method, time adjusted or discounted cash flow (DCF) method, discounted rate, certainty equivalent approach, expected monetary value and Hillier and Hertz's models.

Unit V: System Analysis and Design: concept of system; characteristics of a system, elements of a system; types of systems, systems models; open or closed systems; man-made information system; computer based information system. Information System Development: The process of system development, system life cycle; system development methodologies.

System Analysis: System planning and initial investigation, information gathering, tools interview, questionnaire; tolls used in structured analysis data flow diagram (DFD), data dictionary, structured English, decision trees, decision tables.

System Design: The process and stages of system design, logical and physical design, design methodologies, input/output and forms design; file organization and data base design.
System Implementation: System testing quality assurance, hardware/software selection, system security.

Unit VI: Introduction to E-Commerce: Meaning and concept; .scope and promise; E-commerce and E-business; lure of E-commerce; different categories of E-commerce; encryption and authentication; elements of encryption, encryption keys; different devises of authentication, digital signatures, categories of digital. signature, cryptographic algorithms, digital certificates, secure socket layer (SSL) secure electronic transaction (SET) biometrics; future of E-commerce.