Emmanuel Bertin is senior service architect at Orange Labs in France. He is the author of more than 40 research papers, and holds more than 10 patents in the area of communication services.Noël Crespi worked at Bouygues Telecom, France Telecom R&D, and then at Nortel Networks where he led the Telephony Programme. He is currently Professor and Head of the Service Architecture Laboratory at Institut Mines-Telecom, Telecom SudParis in France and is the author/co-author of more than 160 research papers and 140 contributions in standardization.

• Foreword ixIntroduction xiAcknowledgements  xvChapter 1. Describing Service Architectures 11.1. The telecommunications community 21.1.1. The service and global functional planes of the intelligent network 21.1.2. From TINA to the NGN 81.1.3. The OMA and the concept of the enabler 111.2. The Web community 161.2.1. Web services as fundamental structural units 161.2.2. Semantic description of resources 181.2.3. Semantic description of Web services 191.3. The IT community 231.3.1. Service-oriented architectures 231.3.2. The concept of view 261.3.3. Enterprise architecture and urbanization 281.4. Summary 33Chapter 2. Convergence of Service 352.1. Overview of communication services 352.1.1. Telecoms services and the NGN 352.1.2. The NGN 362.1.3. Towards convergence 472.1.4. Implementation of convergent services 502.2. Common developments of the service sector 522.2.1. The service production viewpoint: from need to service 542.2.2. The service use viewpoint: customer, consumer and user 582.2.3. From service to service system 612.3. Application to telecoms services 632.3.1. Telecoms services from the point of view of production? 632.3.2. Telecoms services from the point of view of use? 662.3.3. How to structure telecoms services? 682.4. Summary 74Chapter 3. Building an Architectural Framework for Telecom Services 773.1. A business reference view for telecom services 783.1.1. Activities from the business view 783.1.2. Service processes 843.1.3. Application to telecom services 903.2. A functional reference view for telecom services 913.2.1. Components of the functional view 913.2.2. Functional patterns 943.2.3. Application to telecom services 963.3. A technical reference view for telecom services 993.3.1. The elements of the technical view 993.3.2. Technical roles and reference points 1023.4. Summary 104 Chapter 4. Modeling and Case Study 1074.1. The business reference view 1084.1.1. Modeling 1084.1.2. Illustrations 1094.2. Functional reference view 1164.2.1. Modeling 1164.2.2. Illustration 1284.3. The technical reference view 1424.3.1. Modeling 1424.3.2. Illustration 1444.4. Functional view of a service  1574.4.1. Modeling 1584.4.2. Illustration 1644.5. The technical view of a service 1754.5.1. Modeling  1764.5.2. Illustration 1794.6. The applicative view of a service 1854.6.1. Modeling 1874.6.2. Illustration 1944.7. Summary 208Chapter 5. Organizational and Software Applications 2115.1. An aid for the construction of service offers 2115.1.1. Service design 2115.1.2. Evaluation and comparison of services 2125.1.3. Service management 2165.2. An aid for the rationalization of services 2185.2.1. The case of enablers 2185.2.2. The case of software service 2205.2.3. The case of semantic services 2225.3. An aid for achieving service convergence 2235.3.1. A technical pattern for the Web/IMS convergence 2245.3.2. Unified access to services 2285.3.3. Inter-service communication 2335.4. Summary 238Conclusion 239Appendix 245Bibliography 249List of Figures and Tables 263Index 269