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DSS & MIS 05 - DSS

May 30, 2018

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    5. DSS

    Overview, Relevance, Scope,Characteristics and capabilities ofOSS (DSS), Components of OSS,

    Classification of DSS

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    Decision Making as aComponent of Problem Solving

    Design

    Choice

    Implementation

    Monitoring

    Problemsolving

    Decision

    making

    Intelligence

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    Solution Types

    Optimization model Finding the best solution

    Satisfying model Finding a good - but not necessarily the

    best - solution to a problem

    Heuristics Commonly accepted guidelines or

    procedures that usually find a goodsolution

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    Characteristics of a DSS

    Handles large amounts of data from different sources

    Provides report and presentation flexibility

    Offers both textual and graphical orientation

    Supports drill down analysis

    Performs complex, sophisticated analysis andcomparisons using advanced software packages

    Supports optimization, satisfying, and heuristicapproaches

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    Characteristics of a DSS

    Performs different types of analyses

    What-if analysis

    Makes hypothetical changes to problem and

    observes impact on the results Simulation

    Duplicates features of a real system

    Goal-seeking analysis

    Determines problem data required for a givenresult

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    Capabilities of a DSS

    Supports

    Problem solving phases

    Different decision frequencies

    Solves

    Structured Problems

    Semi-structured and Unstructured Problems

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    Web-Based DSS

    Web-based decision support systems

    Decision support system softwareprovides business intelligence through

    web browser clients that accessdatabases either through the Internet ora corporate intranet

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    Components of a DSS

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    DSS Software System

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    Wide Area Decision Network

    Characteristics

    Location of group members is distant

    Decision frequency is high

    Virtual workgroups

    Groups of workers located around the worldworking on common problems via a GDSS

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    Executive Support System(ESS)

    Board of directors

    President

    Function areavice presidents

    Function areamanagers

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    Operations Support System(OSS)

    Operations Support System (OSS)performs management, inventory,engineering, planning, and repair

    functions for telecom service providersand their networks.

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    Components of OSS

    Order processing, accounting, billing and costmanagement

    Network inventory, service provision, design

    and assign Network discovery and reconciliation, trouble

    and fault management, capacitymanagement

    Network elements, asset and equipmentmanagement, field service management

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    DSS Hardware

    Portability has become critical for deployingdecision-making capability in the field,especially for salespersons and technicians

    The power and capabilities of the World Wide

    Web have a dramatic impact on DSS Communication and collaboration

    Download DSS software

    Use DSS applications provided by the company

    Buy online from application service providers (ASPs)

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    DSS Classifications

    AIS SIGDSS classification for DSS

    Communications-driven and group DSS(GSS)

    Data-driven DSS

    Document-driven DSS

    Knowledge-driven DSS, data mining, and

    management ES applications Model-driven DSS

    Compound DSS

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    DSS Classifications

    Holsapple and Whinstons classification

    Text-oriented DSS

    Database-oriented DSS

    Spreadsheet-oriented DSS

    Solver-oriented DSS

    Rule-oriented DSS

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    DSS Classifications

    Alters output classification Data

    File drawer systems

    Data analysis systems Data or models

    Analysis information systems

    Models Accounting models Representational models

    Optimization models

    Suggestion models

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    DSS Classifications

    Other DSS categories

    Institutional DSS

    A DSS that is a permanent fixture in an

    organization and has continuingfinancial support. It deals with decisionsof a recurring nature

    Ad hoc DSSA DSS that deals with specific problemsthat are usually neither anticipated nor

    recurring

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    DSS Classifications

    Other DSS categories

    Personal support

    Group support

    Organizational support Group support system (GSS)

    Information systems, specifically DSS,

    that support the collaborative work ofgroups

    Custom-made systems versus ready-made

    systems