, three are partly process oriented: Service implementation Interconnect Telecom management - operations Introduction Charging, affordability Telecom business chapter 5 actor basic part Chapter 2 1 Roles Business plan 2 End-user Processes Identify segments revenue Technical plans oppor- tunities Basic part Basic part Basic part 4 Elaborate Chapter 5 Chapter 6 Chapter 7 service plan 7 Implement service 5 Identify 6 Implement Services, security, QoS solutions infrastructure Crucial for user perception Network Telecom Network business basic part basic part Chapter 3 Chapter 4 Figure 1.9 Chapters that relate to the user interface whereas the others are segments of the new network. The network is split into three dimen- sions: the layered dimension, the distributed dimension and the processing dimension. The chapters embrace the following network segments: Service network Terminal devices Edge nodes Packet backbone Access network Control network Processing dimension The related book reference model is shown at the bottom part of Figure 1.10, with the three dimensions on the right-hand side and the triangle at the upper left. A main intention of this book is to use it in courses. We know that many courses are product oriented. It is easy to complement the content of this book with products, for example using Figure 1.11 as a reference. Please observe WLAN as one of the access alternatives. The overall chapter structure becomes: Chapter 1: Introduction Chapter 2: End user needs and demands Chapter 3: Technologies and networks (Appendix on web services) End user Layering Telecom Well-defined network structure business Security Success factors model Services (services, DRM, Network TCP/IP 0-1-2-3 etc.) Processor part of a service Roles Network structure H.248 particular commercial interfaces telecom node Success Layering Service implementation factors Solution services Processing element Increase functionality Processing Distribution Platform service Network interfaces interfaces Other Success factors Terminal network (e2