vious chapters, in particular in Chapter 3. It could be called the 'horizontal, all-access network'. There is also a need for a systematic approach. Figure 8.5 provides support. The struc- ture of this chapter is mapped onto parts of the ITU diagram. However, products and price lists are not treated in this book. The main modifications/additions are: 'Service plan' and 'service enablers' have been added. 'GoS' (grade of service) has been replaced by 'QoS' and 'Digitalization process + ISDN (alternative scenarios) have been replaced by 'Target network + Development track'. Implementation of particular service types is covered in the following way: Messaging and transactional services are 'service-enabler oriented' and treated in Section 8.6.5. Conversational and streaming services (and partly interactive services) are QoS oriented and treated in Section 8.7.3. Background services are not very demanding, and are not treated at all in this chapter. Ordinary IP networks are suitable bearers. Service plan Chapter 5 User service Target network architecture 3 GPP. Input from Chapter 3 Existing network, Development tracks Service enablers, preferably access independent. Input from Chapter 5 FP convergence Input from Chapters 6 and 7 Traffic cases Figure 8.4 The service plan is examined from a number of angles, starting with the target network Understanding Changing Telecommunications - Building a Successful Telecom Business TELECOM MANAGEMENT Policy Forecast Scenario Final resources approval approval decision Detailed Network planning management Policy evaluation Service plan Strategic planning Product research Target network Boxes with Development track Fundamental dotted lines are Network planning Planning criteria plans modifications of the ITU e.g. QoS Service Forecasting Price list enablers document Products cost structure Land & building Service planning Detailed All other data network data collection pre-processing Traffic measurement External sources Figure 8.5 This ITU Figure with additions supports Chapter 8 8.