DECISION SUPPORT SYSTEMS- ANIMAL PRODUCTION APPLICATIONS_Dr Talaat Refaaat_ AinShams University

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Ain-Shams University
Faculty of Agriculture
DECISION SUPPORT
SYSTEMS :
ANIMAL
PRODUCTION
APPLICATIONS
By
Dr. TALAAT REFAAT
https://www.linkedin.com/in/talaatrefaat

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Faculty of Agriculture
DECISION SUPPORT
SYSTEMS :
ANIMAL PRODUCTION
APPLICATIONSBy
Dr. TALAAT HARB M REFAAT
https://www.linkedin.com/in/talaatrefaat
April, 28, 2007

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FRAME WORK: PROBLEM DEFINITION
 To establish a frame work for
presentation SUBJECT
 To limit the domain of work / SCOPE
 To organize our thoughts & ideas.
 To get the BEST time utilization.
 To decide on different issues.
 OBJECTIVES

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PRESENTATION TOPICS
 DSS definition.
 Types of computer-based system.
 Decision making process.
 Systems Approach: A System Life Cycle.
 Requirements for DSS.
 Technical capabilities of DSS.
 Alternative terminologies for DSS.
 Applications.

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DSS Definition
 A DSS can be described as a computer-
based information system that helps a
manager make key decisions and
thereby improves the effectiveness of
managers problem-solving process.

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Types of computer-based
system
 Operating Systems (OS).
 Application Systems: Payroll, Inventory,
Customer Invoice, Feeding Cost, Mat. Price
, DietMix.
 Database Management Systems (DBMS)
 Management Information Systems (MIS)
 Decision Support Systems (DSS)

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DECISION MAKING PROCESS
 Cut off,,,,,, a solution,,,,,, a direction,,,, responsible
freedom,,,, risk,,, objectives??.
the best alternative for the DECISIONMAKER,,,,,
 Decision levels, STRATIGICAL, TACTICAL, OPERATIONAL.
 Scientific methods ,models, simulations, team work.
 Decision Making approaches : DISCRIPTIVE, SCIENTIFIC.
 Pure Intuition. (live with it, observational/conventional )
 Making use of experts.
 By means of committees.
QUALITATIVE. QUANTITATIVE.

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An Organization
 Is a network of interdependent systems,
designed to perform the activities vital to
human existence.

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Systems Approach
Structured Analysis & Design
 An Organization.
 A System.
 A Procedure.
 The Systems Analyst.
 The System Study Cycle.

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A System
 Is a network of interdependent procedures,
that are joined together to perform an
activity.

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A Procedure
 Is a precise series of step- by- step
instructions that explain :
 will be done .
 WHAT is to be done ,
 WHO will do it ,
 WHEN it will be done , &
 HOW it will be done.

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The Systems Analyst
 Is a methods person, who can start with a complex
problem, break it down, and identify the reasonable
solutions.
 The ANALYST can :
 Study ill system, come up with superior alternatives.
 Given some number of objectives, device systematic
means of attaining them.
 Differentiate & Integrate any complex system.

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The system study cycle
 Problem Definition.
SUBJECT , SCOPE , OBJECTIVES, reporting
machinery.
 Prepare an outline of the system study.
Organize into major areas ,plan.
 General Information on area under study.
Identify areas, background, politics.
 Interaction between areas being studied.
Org structure, i/p , o/p resources.
 Understanding the existing system.
Develop your approach, interviewing,………

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The system study cycle (cont.)
 Define the new systems requirements.
ses , sis ,,,,,,,,,,,,,,,,,,,,,,,,,, srd
 Designing the new system.
Problem solving vs decision making.
 Economic cost comparisons.
Two concepts of cost analysis: payback period,
marginal efficiency of investment.
 Selling the system.
Gaining acceptance : thro’ written rep, verbal pres.
 Implementation, follow-up & re-evaluation.
Old , new system , why re-evaluation. Unending
process.

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Requirements for DSS
Characteristics enable DSS to achieve Objectives:
 Relies heavily on: Sophisticated Quantitative
Tech of Model Building, Else ( if Analytical
Optimization can’t) ,
 Relies on Simulation Models.
 Uses Statistical Analysis to collect data , predict
trends.
 Non-computer-oriented people can use it in an
interactive mode.
 Designed to remain flexible and adaptable, to
meet specific decision-making style.

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Tools of dss
 Deterministic Models
 Linear Programming. (LP)
 Resource Allocation Problems.
 Assignment Problems.
 Scheduling Problems.
 Dynamic Programming.
 Non-Linear Programming.
 Shortest Path Programming.
 Maximum Flow Problems.
 Transportation or Routing Problems
 Goal Programming.
There is more than one Classification; One is
as follow:

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Tools of dss (Cont)
 Probabilistic and Stochastic Models
 Regression Analysis.
 Forecasting Models.
 Time Series Analysis.
 Decision Trees.
 Project Management Problems.
 Inventory Control Models.
 Queuing Models.
 Simulation Models.

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Technical Capabilities of DSS

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For

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 Problem Motivation
 MPP Characteristics.
 MPP in Developing Countries Vs
Developed Countries
 A Unified Approach For:
ANALYZING, FORMULATING& SOLVING MPP
 Applications

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Is it possible to systematize
tackling manpower problems ?!
 “Solving” an MPP, already formulated, is a part of
tackling the whole management situation.
 There is exist a big difference between “Solving” a
specific MPP, and “Solving” a general MPP.
 Yet, common features characterize MPP’s
 In the literature 3 generations are identified
A Unified Approach For ANALYZING,
FORMULATING & SOLVING MPP’s

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‫برقي‬
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