download

boorishadamantΤεχνίτη Νοημοσύνη και Ρομποτική

29 Οκτ 2013 (πριν από 3 χρόνια και 11 μήνες)

77 εμφανίσεις

Eleventh Edition

1

Introduction to Essentials

for Information Systems

C h a p t e r

9

Decision

Support

Systems

Eleventh Edition

James A. O’Brien

2

Introduction to Essentials for Information Systems

Chapter Objectives


Identify the changes taking place in the form
and use of decision support in e
-
business
enterprises.


Identify the role and reporting alternatives of
management information systems.


Describe how online analytical processing
can meet key information needs of
managers.


Explain the decision support system concept
and how it differs from traditional
management information systems
.


Eleventh Edition

James A. O’Brien

3

Introduction to Essentials for Information Systems

Chapter Objectives



Explain how the following information systems can
support the information needs of executives,
managers, and business professionals:


A) Executive Information Systems


B) Enterprise Information Portals


C) Enterprise Knowledge Portals


Identify how neural networks, fuzzy logic, genetic
algorithms, virtual reality, and intelligent agents can
be used in business.


Give examples of several ways expert systems can
be used in business decision
-
making situations.

Eleventh Edition

James A. O’Brien

4

Introduction to Essentials for Information Systems

e
-
Business Decision Support Applications

Customer

Relationship

Management

Situation: What
-
if

Scenario Analysis

Supply Chain

Management

Knowledge/Innovation

Management

Enterprise Performance

Monitoring

Employee
-

Manager/

Customer/Partner

Eleventh Edition

James A. O’Brien

5

Introduction to Essentials for Information Systems

Decisions in the e
-
Business


Strategic

Management

Tactical

Management

Operational

Management

Decision Characteristics

Unstructured

Semi
-
structured

Structured

Eleventh Edition

James A. O’Brien

6

Introduction to Essentials for Information Systems

Management Information System Reports

Periodic Scheduled

Reports

Exception Reports

Demand Reports

and Responses

Push Reports

Major

Management

Information

Systems Reports

Eleventh Edition

James A. O’Brien

7

Introduction to Essentials for Information Systems

Online Analytical Processing

OLAP

Server

Multi
-

dimensional

database

Corporate

Databases

Client PC

Web
-
enabled OLAP

Software

Data is retrieved from corporate databases

and staged in an OLAP multi
-
dimensional

database


Operational DB


Data Marts


Data Warehouse

Eleventh Edition

James A. O’Brien

8

Introduction to Essentials for Information Systems

Decision Support Systems

What If
-
Analysis

Sensitivity Analysis

Goal
-
Seeking Analysis

Optimization Analysis

Important

Decision

Support

Systems

Analytical Models

Eleventh Edition

James A. O’Brien

9

Introduction to Essentials for Information Systems

Enterprise Information Portals and DSS

Enterprise Information Portal Gateway

Enterprise Information Portal User Interface

Search

Agents

OLAP

Data

Mining

Knowledge

Management

Database Management Functions

Data

Mart

Other

Business

Applications

Operational

Database

Analytical

Database

Knowledge

Base

DSS

What
-
If Models

Sensitivity Models

Goal
-
Seeking Models

Optimization Models

Internet

Intranet

Extranet

Eleventh Edition

James A. O’Brien

10

Introduction to Essentials for Information Systems


Attributes of Intelligent Behavior





Think and reason


Use reason to solve problems


Learn or understand from experience


Acquire and apply knowledge


Exhibit creativity and imagination


Deal with complex or perplexing situations


Respond quickly and successfully to new
situations.


Recognize the relative importance of
elements in a situation


Handle ambiguous, incomplete,or erroneous
information

Eleventh Edition

James A. O’Brien

11

Introduction to Essentials for Information Systems

Artificial Intelligence Applications

Cognitive

Science

Applications

Artificial

Intelligence

Robotics

Applications

Natural

Interface

Applications


Expert Systems


Fuzzy Logic


Genetic Algorithms


Neural Networks


Visual Perceptions


Locomotion


Navigation


Tactility


Natural Language


Speech Recognition


Multisensory Interface


Virtual Reality

Eleventh Edition

James A. O’Brien

12

Introduction to Essentials for Information Systems

AI Application Areas in Business

Neural Networks

Fuzzy Logic Systems

Virtual Reality

Expert Systems

AI Application

Areas in

Business

Intelligent Agents

Genetic Algorithms

Eleventh Edition

James A. O’Brien

13

Introduction to Essentials for Information Systems

Intelligent Agents

Interface

Tutors

Presentation

Agents

Network

Navigation

Agents

Role
-

Playing

Agents

User

Interface

Agents

Information

Management

Agents

Search

Agents

Information

Brokers

Information

Filters

Eleventh Edition

James A. O’Brien

14

Introduction to Essentials for Information Systems

Components of Expert Systems

The Expert System









Knowledge

Base

User

Workstation

Expert

Advice

User

Interface

Programs

Inference

Engine

Program

Expert System Development









Workstation

Knowledge

Engineering

Knowledge

Acquisition

Program

Expert and/or

Knowledge Engineer

Eleventh Edition

James A. O’Brien

15

Introduction to Essentials for Information Systems

Expert System Applications

Decision Management

Diagnostic/Troubleshooting

Maintenance/Scheduling

Design/Configuration

Selection/Classification

Major

Application

Categories

of Expert Systems

Process Monitoring/Control

Eleventh Edition

James A. O’Brien

16

Introduction to Essentials for Information Systems

Chapter Summary


Decision support systems in business are
changing. The growth of corporate intranets,
extranets, and other web technologies have
increased the demand for a variety of
personalized, proactive, web
-
enabled analytical
techniques to support DSS.


Information systems must support a variety of
management decision
-
making levels and
decisions. These include the three levels of
management activity: strategic, tactical, and
operational.

Eleventh Edition

James A. O’Brien

17

Introduction to Essentials for Information Systems

Chapter Summary (cont)


Online analytical processing is used to analyze
complex relationships among large amounts of
data stored in multidimensional databases.
Data mining analyzes large stores of historical
data contained in data warehouses.


Decision support systems are interactive
computer
-
based information systems that use
DSS software and a model base to provide
information to support semi
-
structured and
unstructured decision making.

Eleventh Edition

James A. O’Brien

18

Introduction to Essentials for Information Systems

Chapter Summary (cont)


The major application domains in
artificial intelligence include a variety of
applications in cognitive sciences,
robotics, and natural interfaces.


Major AI application areas include:


Neural Networks


Fuzzy Logic


Genetic Algorithms


Virtual Reality


Intelligent Agents