ers Network control and intelligence Access Core connectivity User information flow Figure 9.1 Position of the service network in the reference model Understanding Changing Telecommunications - Building a Successful Telecom Business, by A. Olsson © 2003 Ericsson och Student litteratur. ISBN: 0-470-86851-1 Understanding Changing Telecommunications - Building a Successful Telecom Business This chapter: Revenue ! Service plan (business based) Packet production process handling control Service layer resources interconnect (VAS, IN) numbering routir Appl. adapt Chapter logic Access Produced packet Find and connect with QoS, security! Economy FP Signal- Access ling, incl. Access Development track service HTTP, SMTP charging lay dependent conn. control (mutual dependence security layers vs service plan) Protocol store Save bandwidth! (CAPEX) Billing Process example at end of chapter 8 Brief example at end of chapter 7 (Figure 7.25, 7.27) Figure 9.2 A process view that was introduced in Chapter 8 - FPs involved in traffic cases are indicated Regarding the technical side, the chapter pursues the successive communication system build-up in Chapters 5, 6, 7 and 8. The parent service layer has been treated in previous chapters. Let us use the process view of Figure 9.2 as a bridge between technique preceding chapters and this one. Pedagogically, a process view like this one can hopefully give the reader a feeling of animation. Traffic cases are often described as sequential processes, and can be used to further support the process thinking. The traffic case in Chapter 8, section 8.10 contains many fundamental plans, indicated in Figure 9.2 with a darker shade. This figure also indicates the early position of the service layer in the flow, by means of a thick arrow. Regarding the business side the following references in other chapters are relevant examples. Chapter 1 - Easy-to-use, affordable, making life easier (Mäkitalo), society-oriented ser- vices (Malm, Thorngren). Chapter 2 - No specific answer on consumers is possible