Service Delivery and Management

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1 7 Electronic Business Herausgegeben von Christine Strauss Band 7 Natalia Kryvinska / Christine Strauss LANG Natalia Kryvinska / Christine Strauss Next Generation Networks Next Generation Networks Service Delivery and Management Peter Lang Internationaler Verlag der Wissenschaften

2 Next Generation Network (NGN) is an innovative revenue stream for the service providers from the increase of their service offerings. Therefore, it is important to understand how proposed solutions in NGN markets can enable flexible and easy service creation, delivery and management both to service providers as well as third party application developers. Consequently, this book provides guidelines for the NGN service platforms evaluation, in terms of functionality, programmability, flexibility, openness, and inter-operability. In other words, the objective is to revise some of the major benefits promised by NGN, namely productivity, creativity and new revenues from new business opportunities, and to overhaul how well current product offerings can support these capabilities with available service development tools. Natalia Kryvinska is senior researcher at the E-business Group of the University of Vienna. She holds a PhD in Electrical Engineering from the Vienna University of Technology. Christine Strauss is Professor at the School of Business, Economics and Statistics, University of Vienna. She heads the ebusiness research group. ISBN

3 Next Generation Networks Service Delivery and Management

4 Electronic Business Herausgegeben von Christine Strauss Band 7 PETER LANG Frankfurt am Main Berlin Bern Bruxelles New York Oxford Wien

5 Natalia Kryvinska / Christine Strauss Next Generation Networks Service Delivery and Management PETER LANG Internationaler Verlag der Wissenschaften

6 Bibliographic Information published by the Deutsche Nationalbibliothek The Deutsche Nationalbibliothek lists this publication in the Deutsche Nationalbibliografie; detailed bibliographic data is available in the internet at Cover design: Olaf Glöckler, Atelier Platen, Friedberg Printed with financial support of the Federal Ministry of Science and Research in Vienna ISSN X ISBN Peter Lang GmbH Internationaler Verlag der Wissenschaften Frankfurt am Main 2011 All rights reserved. All parts of this publication are protected by copyright. Any utilisation outside the strict limits of the copyright law, without the permission of the publisher, is forbidden and liable to prosecution. This applies in particular to reproductions, translations, microfilming, and storage and processing in electronic retrieval systems.

7 Electronic Business Herausgegeben von Christine Strauss Band 1 Rudolf Hartjes: Web Accessibility. Techniken und exemplarische Erfolgsmessung Band 2 Natalia Kryvinska: Converged Network Service Architecture. A Platform for Integrated Services Delivery and Interworking Band 3 Marie-Luise Leitner: Business Impacts of Web Accessibility. A Holistic Approach Band 4 Sonja Höglinger: Barrierefreier Tourismus und die Rolle des Reisemittlers Band 5 Band 6 Band 7 Iris C. Rauh: Online Reputation Mechanisms. Online-Reputation und deren Management am Beispiel der Hotelindustrie Andreas Mladenow / Karl Anton Fröschl: Kooperative Forschung. Eine Intermediäre Perspektive IKT-gestützter Koordinationsmodelle für den universitären Wissens- und Technologietransfer Natalia Kryvinska / Christine Strauss: Next Generation Networks Service Delivery and Management

8 Table of Content List of Figures... 9 List of Tables List of Acronyms Abstract Introduction Some Important Definitions Book Roadmap/Structure Architectural Philosophy of Services Delivery and Management in NGN Advantages of New Technology Cost Improvement Deregulation Sources of New Revenue Technological Advantages of Migration Challenges, Drivers and Impacts Factors and Aspects that Force the Evolution Deployment Drivers and Challenges Role of NGN in Enterprise ICT Environment Management Business and Financial Impact and Drivers Domains, Protocols and Functions Service Domain Transport Domain Distributed Processing Environment NGN Protocols and Functions Policies, Regulations and Standards Functional Separation and Regulatory Issues in NGN Regulatory and Policy Actions for NGN Development Public Policy Challenges by Migration to NGN Regulation and Market Power Migration towards NGN - Consequences for Standardization and Interoperability Migration Strategy towards Decomposed Service Architecture IP vs. NGN Technological and Business Perspectives Decomposed Architecture Technical Conceptualization Transition Actions towards Decomposed NGN

9 3.3.1 NGN as a Voice-over-Packet Network Transition to NGN beyond Voice Practical scenario of the Transition Modeling and Planning Issues General Attributes and Requirements Methodology for the Evaluation and Planning Management and Control for/on Service Platforms Evolution of Signaling and Control Signaling System for NGN - the SS7 and beyond Network Architecture Principles Alteration Signaling Architecture Principles Transformation New Signaling Trend - IP Multimedia Subsystem IMS Standardization Outline IMS Signaling and Data Flow Management Architecture IMS Supported Services IMS for the End-User Devices IMS and Service Capability Interactions Management Approaches and Frameworks Transformation Defining and Differencing Transformation Aspects and Areas Transformation Strategies and Tactics Mobility Management in NGNs An Impact of Mobile Technologies Development Mobility Strategy Gathering Intelligent Technologies for Assured Mobility Management Mobility Requirements - Management and Engineering Mobility and Enterprise Networks Applications and Services Next Generation Application Model Main Architectural Trends Application Service-enabling Platform NGN Services Characterization NGN Service Features Typology of NGN Services NGN Services Providers Network Service Providers Communication Service Providers Application Service Providers Planning Issues for NGN Service Providers Next Generation Switches, Soft Terminals and Application Servers

10 6.1 Softswitch Softswitch Architecture Softswitch Functions Media Gateway Application Server Signaling Gateway Soft Terminals Soft Terminal Functionality Functional Architecture Software Architecture Components Development Framework Network Functionality Service Scenario Example NGN Service Creation and Development Evaluation Criteria for Comparison of Different Service Creation Technologies Technologies for Service Creation in NGN Open Service Access (OSA)/Parlay Interoperable Services Network Based on Web Services SIP servlets Voice Extensible Markup Language (VoiceXML) Call-Control extensible Markup Language (CCXML) Java Call Control (JCC) Call Processing Language (CPL) Service Creation Mark-up language (SCML) extensible Telephony Markup Language (XTML) Key aspects for deploying NGN services platform Teletraffic Theory Methods for NGN Services Modeling Open Queueing Network as a Model for NGN SCE Queueing System Series as a Special Case of the Open Queuing Network Hierarchical modeling, decomposition of the model into parallel subsystems Approximate analysis of parallel queues model The Non-split Architecture with a Set of K Independent M/E K /1 Queueing Systems The Fork-join Queue Model for Distributed Replicated Database Case Studies: NGN Services Offering Concept NGN Applications/Services Architecture NGN Services Scenario Hybrid VPN Service

11 7.5.4 University Campus Call Center Conclusions References

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