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Searching... | 30000010319218 | TK5105.52 C74 2013 | Open Access Book | Book | Searching... |
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Summary
Summary
Communication services are evolving at an unprecedented rate. No longer limited to interpersonal vocal communication, they now integrate functions such as address books, content sharing and messaging. The emergence of social networks - which may also include these features - is an important element of this transformation. Content services are becoming flagship services themselves, and are sometimes paired up with conversation services. The boundaries between different services are becoming less and less distinct. This book meets the need for a better understanding of communication services, and for a general framework of their description. A detailed overview on service architecture in the Telco, Web and IT worlds is presented, offering a roadmap with explanations on how to improve the architecture and governance of communication service architectures by exploiting the syntax and semantics that are common to different services is clearly outlined. This book also responds to recurring questions about service design, such as the functional scope of enablers or SOA (Service Oriented Architecture) services, the relevance of service composition to the user and collaboration between different services in a converged environment. Many concrete examples from telecoms service providers' operations illustrate these concepts.
Contents
1. Describing Service Architectures.
2. Convergence of Service.
3. Building an Architectural Framework for Telecom Services.
4. Modeling and Case Study.
5. Organizational and Software Applications.
About the Authors
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.
Author Notes
Emmanuel Bertin is senior services 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.
Nol Crespi worked at Bouygues Telecom, France Telecom RD, 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.
Table of Contents
Foreword | p. ix |
Introduction | p. xi |
Acknowledgements | p. xv |
Chapter 1 Describing Service Architectures | p. 1 |
1.1 The telecommunications community | p. 2 |
1.1.1 The service and global functional planes of the intelligent network | p. 2 |
1.1.2 From TLNA to the NGN | p. 8 |
1.1.3 The OMA and the concept of the enabler | p. 11 |
1.2 The Web community | p. 16 |
1.2.1 Web services as fundamental structural units | p. 16 |
1.2.2 Semantic description of resources | p. 18 |
1.2.3 Semantic description of Web services | p. 19 |
1.3 The IT community | p. 23 |
1.3.1 Service-oriented architectures | p. 23 |
1.3.2 The concept of view | p. 26 |
1.3.3 Enterprise architecture and urbanization | p. 28 |
1.4 Summary | p. 33 |
Chapter 2 Convergence of Service | p. 35 |
2.1 Overview of communication services | p. 35 |
2.1.1 Telecoms services and the NGN | p. 35 |
2.1.2 The NGN | p. 36 |
2.1.3 Towards convergence | p. 47 |
2.1.4 Implementation of convergent services | p. 50 |
2.2 Common developments of the service sector | p. 52 |
2.2.1 The service production viewpoint: from need to service | p. 54 |
2.2.2 The service use viewpoint: customer, consumer and user | p. 58 |
2.2.3 From service to service system | p. 61 |
2.3 Application to telecoms services | p. 63 |
2.3.1 Telecoms services from the point of view of production? | p. 63 |
2.3.2 Telecoms services from the point of view of use? | p. 66 |
2.3.3 How to structure telecoms services? | p. 68 |
2.4 Summary | p. 74 |
Chapter 3 Building an Architectural Framework for Telecom Services | p. 77 |
3.1 A business reference view for telecom services | p. 78 |
3.1.1 Activities from the business view | p. 78 |
3.1.2 Service processes | p. 84 |
3.1.3 Application to telecom services | p. 90 |
3.2 A functional reference view for telecom services | p. 91 |
3.2.1 Components of the functional view | p. 91 |
3.2.2 Functional patterns | p. 94 |
3.2.3 Application to telecom services | p. 96 |
3.3 A technical reference view for telecom services | p. 99 |
3.3.1 The elements of the technical view | p. 99 |
3.3.2 Technical roles and reference points | p. 102 |
3.4 Summary | p. 104 |
Chapter 4 Modeling and Case Study | p. 107 |
4.1 The business reference view | p. 108 |
4.1.1 Modeling | p. 108 |
4.1.2 Illustrations | p. 109 |
4.2 Functional reference view | p. 116 |
4.2.1 Modeling | p. 116 |
4.2.2 Illustration | p. 128 |
4.3 The technical reference view | p. 142 |
4.3.1 Modeling | p. 142 |
4.3.2 Illustration | p. 144 |
4.4 Functional view of a service | p. 157 |
4.4.1 Modeling | p. 158 |
4.4.2 Illustration | p. 164 |
4.5 The technical view of a service | p. 175 |
4.5.1 Modeling | p. 176 |
4.5.2 Illustration | p. 179 |
4.6 The applicative view of a service | p. 185 |
4.6.1 Modeling | p. 187 |
4.6.2 Illustration | p. 194 |
4.7 Summary | p. 208 |
Chapter 5 Organizational and Software Applications | p. 211 |
5.1 An aid for the construction of service offers | p. 211 |
5.1.1 Service design | p. 211 |
5.1.2 Evaluation and comparison of services | p. 212 |
5.1.3 Service management | p. 216 |
5.2 An aid for the rationalization of services | p. 218 |
5.2.1 The case of enablers | p. 218 |
5.2.2 The case of software service | p. 220 |
5.2.3 The case of semantic services | p. 222 |
5.3 An aid for achieving service convergence | p. 223 |
5.3.1 A technical pattern for the Web/IMS convergence | p. 224 |
5.3.2 Unified access to services | p. 228 |
5.3.3 Inter-service communication | p. 233 |
5.4 Summary | p. 238 |
Conclusion | p. 239 |
Appendix | p. 245 |
Bibliography | p. 249 |
List of Figures and Tables | p. 263 |
Index | p. 269 |