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Metadata Solutions

Using Metamodels, Repositories, Xml, and Enterprise Portals to Generate Information on Demand

Adrienne Tannenbaum

490 pages, parution le 01/09/2001

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Résumé

With the advent of data warehousing and the growing importance of data access through the Internet, it is essential for all IT professionals to be familiar with metadata. Written by one of the world's foremost information technology experts, Metadata Solutions is a practical guide to understanding and using metadata as a gateway to information. This book serves as a blueprint for designing and implementing a metadata solution that effectively handles information access and exchange within and across organizations.

Metadata Solutions offers an enlightening overview of the role of metadata within current IT trends. The author provides detailed treatment of metadata, metamodels, meta-metadata, and meta-metamodel concepts and structures. She offers in-depth descriptions of specific metadata-based technologies and standards, featuring the benefits and drawbacks of each. With a practical approach, this book presents step-by-step instructions for implementing and maintaining a metadata solution, and provides sample solutions appropriate for a variety of informational needs and circumstances. Most important, it serves as a guide for organizations that are coping with metadata.

Coverage includes the following specific topics:

A review of conventional approaches to information definition, design, and access
(datamodeling, databases, data warehousing)
A renewed perspective on previous attempts at data management
Identification and organization of metadata requirements without setting up yet another
database
Examination of vendor, standard, and custom metamodels
The meta-metamodel and the impact of extensibility
Metadata solution components, including stores and displays
Types of metadata solutions, including repositories, XML-based exchange, and enterprise portals
The metadata roles and standards of today and tomorrow
Information about metadata security
Organizational structures for creating, managing, and maintaining the metadata solution
Ways to expand existing metadata solutions
Sample metadata solution implementations

Numerous case studies, drawn from extensive industry experience, illustrate real-world applications of metadata techniques and concepts. A typical metadata disaster scenario, with associated implementation examples, will help you identify ways to avoid common pitfalls. With this book as your guide, you will be well prepared to explore, choose, implement, and maintain a metadata solution to transform your organization's data into a more accessible and valuable resource.

Contents

Foreword.
Preface.
Acknowledgments.
List of Figures.
About the Author.

1. TODAY'S INFORMATION.

1. The Business Is Information.

Information Defined.
Information Evolution.
Information's Role.
Information "Tunnels".

2. The Information in Today's Organization.

Information Realities in Practice.
Information Sharing and Information Redundancies.
Supporting Today's Intraorganization Information.

3. Information Outside of Today's Organization.

That Famous Download.
The Data Vendors.
Today's Information Exchange.
External Data Today.

4. Integrating Our Data: Where the Repairs of the 1990s Broke Down.

Data Modeling: Does Anyone Remember What It Is?.
The Data Management Organization.
Case Study—A Data Management Reintroduction.
Ray McGlew, IMS Health.
Data Warehousing.
Introducing Objects.
Is Our Integration Adequate?.

5. Identifying Today's Information: The Directories of the 1990s.

Off-the-Shelf Repositories.
Standalone Metadata Stores.
Internal Directories.
Case Study—Internal Directory Implementation.
Christina Tom, Guardian Life Insurance.
Internal Web-Based Data Management.
Case Study—Using the Intranet.
Cynthia Wiggins and Susanne Sabini,Merck & Co..

6. A Summarized Disaster Crying for Solutions.

Anarchical Data Management.
The Data Warehouse Web.
Tools, Tools, and More Tools.
Introducing Metadata—The Silver Bullet.

2. METADATA AS PART OF THE SOLUTION.

7. Moving From Information to Metadata.

Comparing Information to Knowledge.
Defining Metadata.
Relating Information to Metadata.
Metadata Perspectives and Beneficiaries.

8. Identifying Metadata Requirements.

The Overall Process.
Identifying Your Metadata Beneficiaries.
Metadata by Beneficiary.
Metadata Sourcing.

9. Organizing Metadata Requirements.

Beginning the Architectural Planning Process.
Identifying the Metadata of Record.
Categorizing Metadata.
Looking Toward Metamodels.

10. Introducing Metamodels.

Moving from Metadata to Metamodels.
Defining the Metamodel.
Vendor versus Custom Metamodels.
Metamodel Extensibility.

11. Metamodels as a Piece of the Pie.

Defining the Metadata Solution.
Remembering the Objective.
Storing Metadata.
Accessing Metadata.
Metamodel and Metadata Relationships.
Sample Metamodels of Various Types.

3. ENTERING META-META LAND.

12. Meta-Metadata: What Metadata Means to a Tool.

The Tool's View of Metadata.
Meta-Metadata.
Storing Meta-Metadata.
Processing Meta-Metadata.

13. The Meta-Metamodel.

Organizing Metamodels.
Inside Meta-Meta Land.
Meta-Metamodels.
The Information Connection.

14. Introducing Repositories.

Repositories Defined.
The Generic Repository Architecture.
Essential Repository Characteristics.
Old versus New Repository Technology.
The "Quasi-Repository".
Custom-Built Repositories.
Repository Examples.

15. Other Metadata-Based Technologies.

Coauthored by Peter Aiken.
The Web.
File Managers and File Systems.
Database Management Systems.
Object-Oriented Class Libraries.
Metadata Everywhere.

16. The Impact of Standards.

Internal Standards.
External Standards.
Is Anyone Really Following Them?.

4. BEGINNING THE METADATA SOLUTION PROCESS.

17. The Non-Metadata Factors: Group 1—The Nontechnical Environment.

Redefining the Metadata Solution.
Determining Readiness.
Scoping Your Metadata Solution.
The Solution's Impact on the Internal Environments.
Case Study—Non-Metadata Factors at a Chemical Company.
Rachel Brownstein, CIBA Specialty Chemicals.

18. The Non-Metadata Factors: Group 2—The Technical Environment.

Revisiting the Multitool Architecture.
Presenting the Metadata.
Sharing the Metadata.
Reusing the Metadata.
Incorporating External Beneficiaries and Suppliers.

19. The Non-Metadata Factors: Group 3—Technical Support.

Coauthored by Patricia Cupoli, Database Design Solutions, Inc.
Administration.
Organization Responsibilities.
Staffing Requirements.
Organization Chart Options.

20. Determining the Right Solution.

No Metadata Stores, One Metadata Store, or Many?.
Standard or Customized Metamodels.
Including or Excluding the Internet.
Buy, Build, or Both?.
Case Study—Choosing XML as the Solution.
Daniel Hayes and Ho-Chun Ho, PointandQuote.com.

5. SAMPLE METADATA SOLUTIONS.

21. A Typical Metadata Disaster—A Case Study.

Tools, Tools, and More Tools.
Objectives, Objectives, and More Objectives.
Metadata, Metadata, and More Metadata.

22. Metadata Solution 1—A Centralized Repository.

Donna Burbank and Elton Stokes, Computer Associates, Inc.
The Interaction of Basic Repository Components.
Repository-Based Processes.

23. Metadata Solution 2—An Integrated Repository Architecture.

Metadata Solution Scope.
Common Repository Metamodel.
The Repository Architecture.

24. Metadata Solution 3—The Information Directory.

The Directory Metamodel.
Populating the Directory.
Directory Access.

25. Metadata Solution 4—Metadata Interexchange.

A Common Metamodel.
Standardizing Metadata Values.
Scoping the Metadata and Tools Architecture.
Metadata Sources, Target Interfaces, and Translations.

26. Metadata Solution 5—A Standalone Metadata Store.

Coauthored by Linh Nguyen, Database Design Solutions, Inc..
Defining the Limited Scope.
Populating the Vendor's Metamodel.
Preparing Metadata Accessibility.
Maintaining the Metadata.

27. Metadata Solution 6—Building an Enterprise Portal.

Randall Hauch and Brad Wright, MetaMatrix, Inc..
Product Architecture.
The Metamodel.
Applying an Enterprise Portal to a Typical Metadata Disaster.

6. MAINTAINING THE METADATA SOLUTION.

28. Metadata Responsibilities.

Coauthored by Patricia Cupoli, Database Design Solutions, Inc..
IT and End-User Responsibility Breakdown.
Suggested Organization Structures.
Metadata Support Within IT.
End-User Metadata Support.

29. Ensuring Metadata's Livelihood.

Adding the Functionality and Contents of Additional Metadata Stores.
Additional Metadata Beneficiaries.
Keeping the Architecture in Place.
Phased Implementation.
Revising IT Processes.

30. Metadata Is No Longer a Runner Up.

Current Tasks to Ensure an Organization's Metadata Readiness.
Short-Term Metadata Objectives.
Long-Term Metadata-Based Goals.
Business Strategy and IT Collaboration.
If Not Now, When?

Glossary.
Additional Readings.
Index

Caractéristiques techniques

	PAPIER
Éditeur(s)	Addison Wesley
Auteur(s)	Adrienne Tannenbaum
Parution	01/09/2001
Nb. de pages	490
Format	18,5 x 23,5
Couverture	Broché
Poids	787g
Intérieur	Quadri
EAN13	9780201719765
ISBN13	978-0-201-71976-5