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Friday, December 21, 2007

The Knowledge Management Subsystem


The Knowledge Management Subsystem
The more advanced DSS are equipped with a component called
knowledge management.
Knowledge management software provides the necessary execution and
integration of the intelligent system.
A DSS that includes such a component is called an intelligent DSS, a
DSS/Es, expert support system, or knowledge based DSS.
The current generation of data mining applications include ANN (artificial
neural networks)
 The User interface (DIALOG) subsystem
The term user interface covers all aspects of communication between a
user and the DSS.
The most important component because much of he power, flexibility and
ease of use characteristics of DSS is derived from this component.
An inconvenient user interface is one of the major reasons why managers
have not used computers and quantitative analysis to the extent that those
technologies have been available.
 Management of the user interface subsystem
The user interface subsystem is managed by software called the user
interface management system (UMIS),
The UIMS is composed of several programs that provide the capabilities
listed in DSS.
The UIMS is also known as the dialog generation and management
system.
 The user interface process
The user interacts with the computer via an action language processed via
the UIMS.
The UIMS enables the user to interact with the model management and
data management subsystems.
 DSS Hardware
DSS run on standard hardware.
The major hardware options are the organization’s mainframe computer, a
workstation, a personal computer, or a client/server system.
 Classification of DSS
Classification is based on the "degree of action of systems output"
DSS are made by following seven categories.
Holsapple and Whinston classify DSS into 6 types.
1) Text oriented DSS
2) Database oriented DSS
Data oriented, performing data retrieval or
analysis

3) Spreadsheet oriented DSS Deals with data and models
4) Solver oriented DSS
5) Rule oriented DSS
6) Compound DSS
Model oriented providing simulation capabilities,
optimization or computation that suggest an
answer
 Text Oriented DSS

A text oriented DSS supports a decision maker by electronically keeping
trade of textually represented information that could have a bearing on
decision.
It allows documents to be electronically created, revised and viewed as
needed.
Information technologies such as document emerging, hypertext and
intelligent agents can be incorporated into this type.
 Database oriented DSS
Database plays a major role in the DSS structure.
Rather than being treated as streams of text, data are organized in a
highly structured format.
 Spreadsheet oriented DSS
Spreadsheet is a modeling language that allows the user to write models
to execute DSS analysis.
They create, view and modify procedural knowledge.
The most popular tools used are excel and lotus 1-2-3.
 Solver oriented DSS
A solver is an algorithm or procedure written as a computer program for
performing certain computations for solving and particular problem type.
The solve could be economic order quantity procedure for calculating an
optional ordering quantity or a linear regression routing for calculating trend
excel, lotus 1-2-3 and quatropro can be used to develop such an system.
 Rule oriented DSS
Expert system is one example.
 Compound DSS
It is hybrid system that includes two or more of the five basic structures
explained above.
It can be built by using a set of independent DSS.

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