Transcript Chapter 13

15.1
LEARNING OBJECTIVES
• DIFFERENTIATE DECISIONSUPPORT SYSTEMS (DSS) FROM
GROUP DECISION-SUPPORT
SYSTEMS (GDSS)
• DESCRIBE COMPONENTS OF DSS &
GDSS
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15.2
LEARNING OBJECTIVES
• DEMONSTRATE HOW DSS & GDSS
ENHANCE DECISION-MAKING
• DESCRIBE CAPABILITIES OF
EXECUTIVE SUPPORT SYSTEMS
(ESS)
• ASSESS BENEFITS OF ESS
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15.3
MANAGEMENT CHALLENGES
• DECISION-SUPPORT SYSTEMS
• GROUP DECISION-SUPPORT
SYSTEMS
• EXECUTIVE SUPPORT SYSTEMS
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15.4
DECISION SUPPORT
SYSTEMS (DSS)
MANAGEMENT LEVEL COMPUTER
SYSTEM COMBINES DATA,
MODELS, USER - FRIENDLY
SOFTWARE FOR SEMISTRUCTURED
& UNSTRUCTURED DECISION
MAKING
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15.5
DECISION SUPPORT SYSTEM
TPS
USER
INTERFACE
DSS DATA
BASE
EXTERNAL
DATA
DSS SOFTWARE SYSTEM
MODELS
OLAP TOOLS
DATAMINING TOOLS
15.6
USER
DECISION SUPPORT SYSTEM
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TPS: transaction processing system
MODEL: representation of a problem
OLAP: on-line analytical processing
USER INTERFACE: how user enters
problem & receives answers
• DSS DATABASE: current data from
applications or groups
15.7
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DECISION SUPPORT SYSTEM
• DATA MINING: technology for finding
relationships in large data bases for
prediction
• DSS SOFTWARE SYSTEM: tools for
data analysis
• SENSITIVITY ANALYSIS: “what-if”
questions about changes in model
factors
15.8
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DECISION SUPPORT SYSTEM
EXAMPLES:
• MANUFACTURING RESOURCE
PLANNING (MRPII): Production
scheduling, purchasing, material
• GEOGRAPHIC INFORMATION
SYSTEM (GIS): Software to display
digital maps
• CUSTOMER DSS (CDSS): system
supports buying decisions of
customers
15.9
GROUP DECISION-SUPPORT SYSTEM
(GDSS)
INTERACTIVE COMPUTER-BASED
SYSTEM FACILITATES SOLUTION OF
UNSTRUCTURED PROBLEMS BY
DECISION MAKERS WORKING AS
GROUP
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15.10
TOOLS OF GDSS
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ELECTRONIC QUESTIONNAIRES
ELECTRONIC BRAINSTORMING
IDEA ORGANIZERS
QUESTIONNAIRE TOOLS
TOOLS FOR VOTING, SETTING
PRIORITIES
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15.11
TOOLS OF GDSS
• STAKEHOLDER IDENTIFICATION &
ANALYSIS TOOLS
• POLICY FORMATION TOOLS
• GROUP DICTIONARIES
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15.12
ELECTRONIC MEETING SYSTEM
(EMS)
COLLABORATIVE GDSS USES
INFORMATION TECHNOLOGY TO
MAKE GROUP MEETINGS MORE
PRODUCTIVE FACILITATES
COMMUNICATION DECISION
MAKING
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15.13
HOW GDSS ENHANCED
DECISION MAKING
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IMPROVED PRE-PLANNING
INCREASED PARTICIPATION
OPEN, COLLABORATIVE ATMOSPHERE
IDEA GENERATION FREE OF CRITICISM
EVALUATION OBJECTIVITY
IDEA ORGANIZATION & EVALUATION
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15.14
HOW GDSS ENHANCED
DECISION MAKING
• SETTING PRIORITIES & DECISION
MAKING
• DOCUMENTATION OF MEETINGS
• ACCESS TO EXTERNAL INFORMATION
• PRESERVATION OF ORGANIZATIONAL
MEMORY
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15.15
EXECUTIVE SUPPORT
SYSTEMS (ESS)
STRATEGIC INFORMATION SYSTEM
DESIGNED FOR UNSTRUCTURED
DECISION MAKING THROUGH
ADVANCED GRAPHICS AND
COMMUNICATIONS
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15.16
EXECUTIVE SUPPORT
SYSTEMS (ESS)
• BRIEFING BOOKS: On-line data, fixed
format reports for executives
• DRILL DOWN: ability to move from
summary to lower levels of detail
• Designed for specific needs of CEO
• Extensive support staff
• Executive has 24 hour per day ability to
examine, control progress throughout
organization
15.17
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EXECUTIVE SUPPORT
SYSTEMS (ESS)
BENEFITS:
• FLEXIBILITY
• ABILITY TO ANALYZE, COMPARE,
HIGHLIGHT TRENDS
• GRAPHICS HELP EXPLORE SITUATION
• MONITOR PERFORMANCE
• TIMELINESS, AVAILABILITY OF DATA
ALLOWS PROMPT ACTION
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15.18
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15.19
15.20