Information System Economics

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1242.2219 Information System Economics INFORMATI
ON MANAGEMENT
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INFORMATION MANAGEMENT

• Issues
• Types of information
• Data problems
• The DBA
• Database issues
• Data mining
• Data warehousing
• Information
• Knowledge
• Intelligence
• Where next?

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INFORMATION MANAGEMENT

• Issues
• Types of Information
• Data what
• Information why
• Knowledge how to
• Intelligence solve

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INFORMATION MANAGEMENT

• Inconsistent Data Definitions
• Names
• Grades
• Dates
• Catalog(ue) numbers

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INFORMATION MANAGEMENT

• Inconsistent Data Definitions
• Peoples Names - Order of names
• Western
• first_name, middle_name(s), family_name
• (christian_name)
  (surname), generation
• e.g. Henry C. Lucas, III
• Oriental
• family_name first_name second_name (Western_name)

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INFORMATION MANAGEMENT

• Inconsistent Data Definitions
• Peoples Names - Order of names
• But see exceptions Hungary, westernized oriental
  names
• Relational names Abu Mussa, Ibn Saud, Umm
  Khaltoum, Bint Hana
• Shapira, Shapirena, Shapiraita
• Gender information contained in names/unisex names

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INFORMATION MANAGEMENT

• Inconsistent Data Definitions
• Dates

Different calendar schemes solar vs. lunar

starting points 28 February 2000 22 Adar I
5760 22 Shawwal 1420 Order 3/4/1999 March 4
or April 3?
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INFORMATION MANAGEMENT

• Inconsistent Data Definitions
• Dates

Date semantics Transaction date
Date recorded
Value date Time and date zone differences
I got your message tomorrow
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INFORMATION MANAGEMENT

• Inconsistent Data Definitions
• Catalog Numbers

Suppliers catalog number vs. internal
organizational number Internal sub-organization
catalog numbers Subsidiaries catalog
numbers Example Barbara C. McNurlin and Ralph
H. Sprague, Jr. Information Systems Management in
Practice, 4th Ed. Prentice-Hall ISBN
0-13-847971-2 Library of Congress T58.64.I54
1998 Dewey Decimal 658.4038-dc21 97-1245
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INFORMATION MANAGEMENT
Role of the DBA

• Design DBMS application
• Rationalize data inconsistencies
• Maintain data dictionary
• Control data distribution and sharing
• Maintain data accuracy
• Manage data back ups

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INFORMATION MANAGEMENT

Data Mining
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INFORMATION MANAGEMENT

Data Mining
From On-line Analytic Processing (OLAP) via Data
Mining to Knowledge Discovery in Data Bases
(KDD)
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INFORMATION MANAGEMENT

Data Warehousing

• Problems in Data Warehousing
• What data to keep?
• How to organize them

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INFORMATION MANAGEMENT

Data Mining

• Problems in Data Mining
• Which relationships to evaluate?
• Identification of interesting/meaningful
  relationships

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INFORMATION MANAGEMENT

Knowledge

• Types of Knowledge
• descriptive knowledge data
• information
• procedural knowledge
• knowledge
• problem solving knowledge
• intelligence
• creative knowledge

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INFORMATION MANAGEMENT

Where Next?

• Starting Point
• Internal External
• Record Based Traditional Public
• EDP/MIS Databases
• Word processing Corporate
• Document Based Document library
• management web sites

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INFORMATION MANAGEMENT

Where Next?
Data bases are becoming

• distributed
• heterogeneous
• unfederated
• multimedia

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INFORMATION MANAGEMENT

Where Next?
Problems

• distribution gt control problems
• heterogeneity gt integration problems
• unfederated gt no common schema
• multimedia gt how to specify and
• retrieve multiple media

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INFORMATION MANAGEMENT

Where Next?
Solution Directions

• for applications - refederation
• for information retrieval intelligent search
• intelligent routing
• route learning and specialization
• natural language querying

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INFORMATION MANAGEMENT

• Summary
• Types of information
• Data problems
• The DBA
• Database issues
• Data mining
• Data warehousing
• Information
• Knowledge
• Intelligence
• Where next?