Management information systems
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Management Information Systems. Islamia University of Bahawalpur Delivered by: Tasawar Javed. Decision Support Systems. Problem: Some MIS failed, and failure convinced information specialists: to develop another way to help problem solvers make decisions

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Management Information Systems

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Management Information Systems

Islamia University of Bahawalpur

Delivered by:


Decision Support Systems

  • Problem:

    • Some MIS failed, and failure convinced information specialists:

    • to develop another way to help problem solvers make decisions

    • Then the term Decision Support System was introduced by G. Anthony Gorry & Michael S. scott

    • This system was tailored to specific problem solvers and specific problems

Decision Support Systems

  • A DSS is;

    • IS at the Management level of an organization that combine data and sophisticated analytical models to support semi-structured and un-structured decision making.

    • Like MIS, DSS serve the management level of the organization. IS supports decision in vastly different ways, and DSS are a class of systems that supports decision in a unique way (at least when compared to the past)

      • Characteristics of DSS given:

Decision Support Systems

  • A DSS is

    • DSS offer users flexibility, adaptability, and a quick response

    • DSS allows users to initiate and control the input and output

    • DSS operate with little or no assistance from professional programmers

    • DSS provides support for decisions and problems whose solutions can’t be specified in advance

    • DSS use spohisticated analysis and modeling tools

Decision Support Systems

  • A DSS helps:

    • Managers make decisions that are semi-structured, unique, or rapidly changing, and not easily specified in advance.

    • DSS have to be responsive enough to run several times a day in order to correspond to changing conditions.

    • DSS use internal information from TPS and MIS, they often bring in information from External sources, such as current stock prices or product prices of competitors.

Decision Support Systems

  • Clearly,

    • DSS have more analytical power than other systems, they are built explicitly with a variety of models to analyse data

    • DSS are designed so that users can work with them directly; these systems explicitly include user-friendly software. This requirement follows both from their purpose (to inform personal decision making by key actors) and from the method of design

    • These systems are interactive; the user can change assumptions and include new data

Decision Support Systems

Relational Database

Knowledge Data




Relational DBM system



Multi dimensional

DBM system

Report writing





Periodic & special


Outputs from



Outputs from


Solutions &


Output from


Decision Support Systems

  • At the top 3 sources of information that is delivered to users

  • DSS outputs were originally produced from a relational DB and included periodic & special reports a & outputs from Mathematical models.

  • Next, group decision support capability was added by means of group-oriented SW called groupware

  • The groupware enabled the DSS to act as a group decision support system (GDSS)

Decision Support Systems

  • Recent additions:

    • DSS include AI and on-line analytical processing.

    • AI is the science of providing computers with the ability to display behavior similar to that of an intelligent human.

    • AI is built into the DSS by means of knowledge base of information about a problem area, and an inference engine that can analyse the contents of the knowledge base, online analytical processing OLAP involves the storage of data in a multidimensional form to facilitate the presentation of an almost infinite number of data views.

Decision Support Systems

  • Multidimensional database

    • MDB is type of DB that is optimized for data warehouse & OLAP applications. MDB allows user to ask question like “how many iPhones have been sold in Bahawalpur so far this year”

  • OLAP

    • This application helps to access data from multidimensional DB.

    • It enables analyst, managers & executives to

      • Gain insight into data through fast, consistent, interactive access to a wide variety of possible views of info

  • Thank you!!!

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