decission support system. decission making process intelligence design choice
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DECISSION SUPPORT SYSTEMDECISSION SUPPORT SYSTEM
DECISSION MAKING PROCESSDECISSION MAKING PROCESS
INTELLIGENCEINTELLIGENCE
DESIGNDESIGN
CHOICECHOICE
DECISIONDECISION
Making decisions concerning complex systems often strains our cognitive capabilities.
Predicting how the system will react to an external manipulation such as a policy decision is often difficult.
PROCESS VIEW OF DECISION MAKING
Decision support system•Decision Support Systems (DSS) are a specific class of computerized information system that supports business and organizational decision-making activities .
•A properly designed DSS is an interactive software-based system intended to help decision makers compile useful information from raw data, documents, personal knowledge, and/or business models to identify and solve problems and make decisions.
WHY DSS Because decision-making involves a complex
sequence of activities over time, it implies there are at least three functions that should be assigned to DSSs:
1) The capability of capturing and saving
information from previous activities; 2) Data processing capability;
3) Data retrieval capability.
COMPONENTS OF DSSCOMPONENTS OF DSS
There are three fundamental components of DSS :
DATA BASE MANAGEMENT SYSTEM (DBMS)
MODEL BASED MANAGEMENT SYSTEM (MBMS)
DIALOG GENERATION &MANAGEMENT SYSTEM (DGMS)
THE ARCHITECTURE OF DSSTHE ARCHITECTURE OF DSS
Types of DSS Types of DSS DS systems can be separated into seven broad
categories, each aiding decision making by different methods:
DATA DRIVEN DSS. MODEL-DRIVEN DSS. KNOWLEDGE DRIVEN DSS. DOCUMENT DRIVEN DSS. Communication Driven DSS. INTER & INTRA-ORGANIZATIONAL DSS. NEW BREED OF DSS
DSSDSS
IN-HOUSEIN-HOUSEPROPRIETARYPROPRIETARY
DATABASEDATABASE
KNOWLEDGE KNOWLEDGE DATABASEDATABASE
DATADATA
PROCESSING MODELSPROCESSING MODELSFINANCIALFINANCIAL
ACOUNTINGACOUNTINGECONOMICALECONOMICAL
EXTERNAL ANDEXTERNAL AND
INTERNALINTERNAL ENVIRONMENT ENVIRONMENT
PROCESSING BY MANAGER, USING KNOWLEDGE,PROCESSING BY MANAGER, USING KNOWLEDGE,EXPERIENCE AND INTUITIONEXPERIENCE AND INTUITION
QUALITY DECISIONQUALITY DECISION
PROCESING MODEL FOR DSSPROCESING MODEL FOR DSS
NEW BREEDS OF DSS
HYBRID SYSTEMHYBRID SYSTEM
Eg.-WEB BASED DSSEg.-WEB BASED DSS
On-line Analytical Processing (OLAP)On-line Analytical Processing (OLAP)
MANAGEMENT REQUIREMENT MANAGEMENT REQUIREMENT OF DSSOF DSS
ALLOCATING RESOURCES PREPARING BUDGETS OBSERVATION OF RESULTS EVALUATION OF RESULT MODIFICATION OF ACTIVITES AND
RESOURCES
Intangible payoffs DSSIntangible payoffs DSS
Improved internal control.Improved internal control.
Enhances long term profitability by Enhances long term profitability by improving quality of decision making.improving quality of decision making.
Faster response to changes in Faster response to changes in business environmentbusiness environment .
Cont …. Better management awareness of
internal strength and weaknesses and external threats and opportunities.
Allows managers’ to record experience and use it in future for similar scenarios that may arise within the organization.
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