upport for business development and planning - business layer in the TMN (telecom- munications management network) pyramid for the service network. Service Network Services with common functions Service layer Single-sign-on Common charging Common O&M Common directory Common provisioning Telecom grade: Scalability and redundancy Security and manageability Figure 9.8 Cost efficiency in the service network. A third dimension is provided by for example location-based services, which can be combined with the vertical services Service extensions to stay competitive - new enablers. Reduced OPEX, CAPEX. A future-safe framework and service infrastructure. FAB support 9.8.2 COMMON USE OF RESOURCES A common use of the resources and processes provided by the service network gives a better ROCE. See Figures 9.8 and 9.9. The common resource goal is most applicable for public service networks. Enterprise service networks tend to be more tailored, and even more vertical. The common resource goal is most applicable for public service networks. Enterprise service networks tend to be more tailored, and even more vertical. Management The business 'pyramid' is under transformation (see Figure 9.10). When services beyond voice take a larger part of the overall service market, service and business management will start migrating to the service layer. Development, launching, billing and maintenance of new services will be increasingly located to the service management layer. Service network management can be divided into application and network management and service management for service provisioning and service data management. Service provisioning is defined as the process of handling the data in the network that is related to subscriptions, and service data management as operations on service data. Understanding Changing Telecommunications - Building a Successful Telecom Business Today: own sets of vertical applications, with own provisioning (P), management (M), and other resources (R) Common architecture: reuse common services On