ence, and Security) Yong Zheng, Han-hua Lu, Ya-shi Wang, Li-juan Min, Shun-yi Zhang, and Yan-fei Sun Contents Overview 6.1.1 Next-Generation Service Delivery Platform 6.1.2 Requirements in View of APIS 6.1.3 Brief Introduction of this Chapter 6.2 Applications 6.2.1 Overview 6.2.2 Telecom Services and Operations 6.2.3 Telecom Frameworks 6.2.4 Software Engineering 6.2.5 Others Service Delivery Platforms 6.3 Performance and Intelligence 6.3.1 Overview 6.3.2 Cognitive Functions 6.3.2.1 Cognitive Science 6.3.2.2 Cognitive Networks 6.3.2.3 Cognitive Functions 6.3.3 Domain Design Pattern 6.3.3.1 Cognitive Domains 6.3.3.2 Cognitive Domain Design Pattern 6.3.4 Cognitive NGSDP 6.3.4.1 Model 6.3.4.2 Theories and Technologies 6.3.4.3 Feasible Solutions 6.4 Security 6.4.1 Overview 6.4.2 Business Processes 6.4.3 Telecom Networks 6.4.4 Software Engineering Summary Acknowledgment References 6.1 Overview With the emerging developments of the Next-Generation Network (NGN) [1], IP Multimedia Subsystem (IMS) [2] is supposed to be the leading telecom solution to meet requirements of various multimedia telecom services and solve integration problems. The full implement of IMS is still a long way to go, while Service Delivery Platform (SDP) is considered as a forerunner to IMS. Therefore, IMS integrated with SDP is the directing orientation for telecom multimedia markets. Actually, multimedia markets and telecom services vary from operator to opera- tor. Several telecom operators and solution providers, such as Ericsson, Atos Origin, IBM, Huawei, and SO on, have proposed their own SDP vista for the future devel- opment. However, different telecom operators almost agree on the same require- ments of architecture. In this chapter, the third SDP architecture proposed by Moriana Model [3] is cited as an example for further explanation our cognitive SDP model, especially in view of performance and intelligence. The whole model can be depicted by Figure 6.1. In this chapter, the Next-Generation Service Delivery Platform (NGSDP) [4] and the C