Desicion Analysis

DECISION ALTERNATIVES

MES

SOP

Note: MIS DSS SOP MES : Management Information System : Decision Support System : Standard Operation Procedure : Monitoring and Evaluation System

What is a System?

Environment

Control Signals

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Feedback Signals

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Control by Management

Feedback Signals 1

IControl Signals

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Input of Raw Materials Svstem Boundary

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Output of Finished Products

Manufacturing Process

Other Systems

• System Definition

Goal

Sub Goal

• System Philosophy - Goal Oriented (Cybernetic) -7 C -7 S - Holistic Not Partial Effectiveness Not Efficiency

-7 H

7 E

System Definition

System is a set of an order interrelated elements (components) for achieving the goal/sub-goals.

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• System Classification Matrix

System Input Process Output

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Analysis Synthesis Design

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? Narrow aspect ? Wide aspect

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Control

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• Marketing system is a system ....... ? • Production operation system is a system ...... ? • Financial system is a system ..... ?

• Basic System Structure

;;;. Open Sys.tem

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Process (P) ;;;. Feed Back System

Output (0)

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·Directive

ES DSS

EIS

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IS

Strategic ·Tactic DBMS }EDP

MIS

Operational

Information system application in business

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Computer Based Information Systems-CBIS

• ES : Expert System

• DSS : Decision Support Systems ·MIS :Management Information System • DBMS : Data Based Management Systems

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• EDP : Electronic Data Processing • IS : Information Systems

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DSS Definition

• DSS is an interactive flexible and adaptable software

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that utilizes decision rules, models and model base coupled with a comprehensive dat.?tbase C!!ld thee decision maker's own insight, leading to specifi'c, implement able decision in solving problems that would not...