D E C I S I O N  S U P P O R T  S Y S T E M
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D E C I S I O N S U P P O R T S Y S T E M

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MIS , DSS and GDSS

MIS , DSS and GDSS

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D E C I S I O N  S U P P O R T  S Y S T E M D E C I S I O N S U P P O R T S Y S T E M Presentation Transcript

  • DECISION SUPPORT SYSTEM
  • DEFINITION OF DSS
    Scott Morton defined Decision Support System (DSS) as interactive computer based system, which help decision makers utilize data and models to solve instructed problems
  • IN SIMPLE DSS
    A DSS is an interactive, flexible and adaptable computer based information system that utilizes decision rules, models and a model base coupled with a comprehensive database and the decision-makers own sights
  • Architecture OF DSS
    A variety of programs supported by the DSS include spreadsheet programs, personal database management system, Model Base Management system (MBMS), word processing packages, graphics generators, statistical packages and other special purpose programs
  • Types of Model used by DSS
    Behavioral Model
    Management Silence Model
    Operations Research Model
  • Behavioural Model
    Focus is on studying or understanding the behaviors trends amongst the variable.
    Decision could be arised based on behavior relationship
    Eg: Trend Analysis, Forecasting , Regression Analysis etc
  • Management Silence Models
    Developed based up on the principles of Management accounting and Econometrics etc.
    Eg Budgetary system, Cost accounting, Inventory
  • Operational Research Model
    Basically application of mathematical formula for arriving at optimum solution
    Mainly mathematical models
    Represent real life problems situations
    Eg: Linear programming ABC analysis, MRP etc
  • Architecture of a Generic DSS Appliaction
    Video
  • Characteristic of a decision support system
    Ability to support the solution of complex problems
    Fast response to unexpected situation that result in changed inputs
    Designed to help support decision that are formulated as semi-structured, complex problems may be constructed to support on time decisions
    DSS is typically designed for either a particular decision-maker or a group of decision makers:
    Allows the decision-makers to interact in a natural manner due to the careful design of the interface
  • Characteristic of a decision support system
    DSS generator ( software) can be used
    It is a way to organize information intended for use decision making
    A decision support system is best conceptualized as a process instead of a product
    Ability to quickly and objectively try different strategies under different configuration
    Facilities communication
    Consistent and objective decision
    Others
  • Components of DSS
    The Database and its management
    The model base and its management
    The hardware
    The user system interface
  • Capabilities of DSS
    Can update or manipulate the database
    Create special (ad Hoc) reports in a desired format
    Perform calculation and execute aggregation of data
    Produce reports, memos, letters and resumes
    Perform financial analysis
    Perform either with standard mathematical models
    Special ratio analysis, comparative analysis or the consolidation
  • Functions of DSS Application
    Becoming familiar with the problem Domain
    Determining sensitivity of results to change in decision variable
    Identifying patterns
    Predicting decision outcomes
    Developing models of business processes
    Facilitating Group communication
  • Group Decision Support Systems (GDSS)
    This is also called as Group support system or computerized collaborative work system (CCWS)
    The user interface is expanded to include computers that are connected in some manner. In this way, members of the group can communicate with the DSS or with other members of the group
    If they are geographically disbursed, they each have a window at their computer that displays the public screen
  • Definition of GDSS
    GDSS is an interactive, computer based system that facilities solution of unstructured problems by a set of decision makers working together as a group
  • Components of GDSS
    Hardware
    Software
    Communication equipment
    People
    Procedure
  • Thank you