ce. NGOSS is working on service life cycle management with SOA, which would make service introduction and management easy, resulting in rapid roll in/out of services. The next generation OSS/BSS solution should be able to monitor quality of service (QoS) and quality of experience (QoE) and ensure that customer service-level agreements are met. NGOSS NGOSS addresses the end to end SLA and QoS management of next generation support systems. NGOSS addresses the issue of standard information model and interfaces for interaction. Data used by different services need to follow a common format as defined by SID for proper interoperability between services. The UML in SID helps to build shared information and data paradigm required for the telecom industry. NGOSS interfaces ensure ease of integration and better interoperability. A service provider might use OSS solutions from different vendors. For example, the provi- sioning system may be from one vendor while the inventory management solution may be from some other vendor. To enable flow through provisioning in service provider space, these solutions from different vendors need to integrate seamlessly. This seamless integration can be achieved if both the vendors adhere to NGOSS methodologies and models. In short, NGOSS provides the necessary framework to develop next generation operation support systems. Additional Reading 1. www.tmforum.org Latest release of these documents can be downloaded from the Web site: NGOSS Lifecycle Methodology Suite Release GB921: eTOM Solution Suite GB929: Telecom Applications Map Guidebook TMF053: Technology Neutral Architecture GB922 & GB926: SID Solution Suite. 2. Martin J. Creaner and John P. Reilly. NGOSS Distilled: The Essential Guide to Next Generation Telecoms Management. Cambridge: The Lean Corporation, 2005. Chapter 22 Telecom Processes This chapter is about telecom process models. The influence of IT models in telecom process models is discussed in detail. The main models that have been used in this chapter for reference are eTO