Barry Web Services, Service-Oriented Architectures, and Cloud Computing

1. Auflage 2003
ISBN: 978-0-08-052094-0
Verlag: Elsevier Science & Techn.
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, 245 Seiten, Web PDF

Web services are leading to the use of more packaged software either as an internal service or an external service available over the Internet. These services, which will be connected together to create the information technology systems of the future, will require less custom software in our organizations and more creativity in the connections between the services. This book begins with a high-level example of how an average person in an organization might interact with a service-oriented architecture. As the book progresses, more technical detail is added in a peeling of the onion approach. The leadership opportunities within these developing service-oriented architectures are also explained. At the end of the book there is a compendium or pocket library for software technology related to service-oriented architectures.

? Only web services book to cover both data management and software engineering perspectives, excellent resource for ALL members of IT teams
? Jargon free, highly illustrated, with introduction that anyone can read that then leads into increasing technical detail
? Provides a set of leadership principles and suggested application for using this technology.

Autoren/Hrsg.

Barry, Douglas K.

Inhaltsverzeichnis

1;Front Cover;1
2;Web Services and Service-Oriented Architectures: The Savvy Manager's Guide;2
3;Copyright Page;3
4;Contents;10
5;Foreword;6
6;Introduction;18
7;Business Opportunities Addressed;19
8;Structure of This Book;19
9;Part I: Service - Oriented Architecture Overview;20
9.1;Chapter 1. A Business Trip in the Not-Too-Distant Future;22
9.1.1;The Business Trip;22
9.1.2;Summary;25
9.2;Chapter 2. Information Technology Used in This Trip;26
9.2.1;Keeping Track of All Customer Contacts in an Online Repository;26
9.2.2;Obtaining Company Contact Information from an External CRM Service;28
9.2.3;Online Calendar Services;29
9.2.4;Changing from One Online Calendar Service to Another;30
9.2.5;Getting Updates on Clients to Be Visited While on the Road;30
9.2.6;Travel Agency Service;31
9.2.7;Car Rental Service;32
9.2.8;Airlines and Hotel;32
9.2.9;Services as Commodities;32
9.2.10;Summary;32
9.3;Chapter 3. Service-Oriented Architectures and Web Services;34
9.3.1;Service-Oriented Architecture Explained;35
9.3.2;Organizations of Any Size Can Use a Service-Oriented Architecture;38
9.3.3;Blurring of Internal and External Services;38
9.3.4;Web Services Explained;39
9.3.5;Security and Authorization;49
9.3.6;Simplified Web Services Notation;51
9.3.7;Summary;51
9.4;Chapter 4. Forces Affecting the Adoption of Web Services and Other Integration Techniques;54
9.4.1;Force Field Analysis Overview;55
9.4.2;Analysis of Integration Techniques;57
9.4.3;Analysis of Adopting Enterprise-Wide Standards;57
9.4.4;Analysis of Middleware Integration;60
9.4.5;Analysis of Additional Components Used for Integration in a Service-Oriented Architecture;67
9.4.6;Putting All the Integration Techniques Together in a Service-Oriented Architecture;74
9.4.7;Summary;77
9.5;Chapter 5. Growing Impact o f Web Services;78
9.5.1;Initial Impact of Web Services;79
9.5.2;Evolutionary Use;90
9.5.3;Summary;90
9.6;Chapter 6. Service-Oriented Architectures and Beliefs about Enterprise Architectures;92
9.6.1;Form Follows Function;93
9.6.2;Service-Oriented Architecture as Part of an Enterprise Architecture;93
9.6.3;Service-Oriented Architectures with Architectural Frameworks and Methodologies;95
9.6.4;Beliefs that Can Cause Function to Follow Form;96
9.6.5;Common Issues with Many Enterprise Architectural Efforts;100
9.6.6;Sometimes Enterprise Architectures Get Watered Down;101
9.6.7;Goals of a Service-Oriented Architecture Using Web Services;101
9.6.8;Advantages of Service-Oriented Architectures;102
9.6.9;Summary;102
9.7;Chapter 7. Starting to Adopt a Service-Oriented Architecture;104
9.7.1;All Web Services Connections Look the Same;105
9.7.2;The Impact of Web Services;105
9.7.3;The Internet Will Help Drive Adoption;106
9.7.4;Stages of Adoption for Web Services and Service-Oriented Architectures;106
9.7.5;Vision of the Future;107
9.7.6;Why Get Started Now?;108
9.7.7;Summary;108
10;Part II: Managing Change Needed for a Service-Oriented Architecture;110
10.1;Chapter 8. Change Will Happen;112
10.1.1;Change;113
10.1.2;Costs Related to Adopting a Service-Oriented Architecture;113
10.1.3;Technical Change Issues Diminishing;115
10.1.4;Resistance to Change;117
10.1.5;Forms of Resistance;119
10.1.6;Overcoming Resistance to Change;122
10.1.7;Some Resistance Scenarios;125
10.1.8;Worksheet for Change Issues and Responses;132
10.1.9;Consolidated Analysis for Adopting a Service-Oriented Architecture;132
10.1.10;Summary;135
10.2;Chapter 9. Tips for Managing Change Issues during Development;136
10.2.1;Design as Little as Possible;136
10.2.2;Write as Little Code as Possible;138
10.2.3;Reduce Project Scope;139
10.2.4;Use a Methodology;139
10.2.5;Use a Second Set of Eyes;139
10.2.6;Use Small Teams;140
10.2.7;Summary;140
11;Part III: Creating Service-Oriented Architectures;142
11.1;Chapter 10. Architectures at Each Stage of Adoption for Web Services;144
11.1.1;Stage 1. Experiment with Web Services;144
11.1.2;Stage 2. Adapt Existing Systems to Use Web Services;150
11.1.3;Stage 3. Remove Intersystem Dependencies;163
11.1.4;Stage 4. Establish an Internal Service-Oriented Architecture;167
11.1.5;Stage 5. Expand the Internal Service-Oriented Architecture to Include External Services;171
11.1.6;Summary;172
11.2;Chapter 11. Architectural Options;174
11.2.1;Data-Centric Architecture;174
11.2.2;Distributed-Process Architecture;175
11.2.3;Master Databases, Data Warehouses, Data Marts, and Business Intelligence Software;179
11.2.4;Agents;181
11.2.5;Summary;182
11.3;Chapter 12. Middle-Tier Architecture;184
11.3.1;Basics for a Middle-Tier Architecture;184
11.3.2;Caching in the Middle Tier;186
11.3.3;Persistence in the Middle Tier;192
11.3.4;Middle-Tier Firewall Options;197
11.3.5;Summary;200
11.4;Chapter 13. Revisiting the Business Trip in the Not-Too-Distant Future;202
11.4.1;The Business Trip;202
11.4.2;Summary;204
12;Part IV: Compendium of Software Technology for Service-Oriented Architectures;206
12.1;Chapter 14. Additional Specification Details;208
12.1.1;Organizations Working on Specifications;208
12.1.2;Matrix of Specifications and Organizations Working on Specifications;212
12.1.3;Web Services Specifications;222
12.1.4;XML Specifications;226
12.1.5;XML Vocabularies;229
12.2;Chapter 15. Quick Reference Guide;236
13;Index;250