on application = Added value provider-actor Supporting framework Figure 3.24 Communication modes and their development Networks and Technologies P2P is often used to denote exchange of music and messages among end users. Peer-to-peer communication also exists between computers. Peer-to-peer computing is the sharing of computer resources and services by direct exchange between systems. These resources and services include the exchange of information, processing cycles, cache storage and disk storage of files. Peer-to-peer computing takes advantage of existing desktop computing power and networking connectivity. In a peer-to-peer architecture, computers that have traditionally been used solely as clients communicate directly among themselves and can act as both clients and servers, assuming whichever role is most efficient for the network. This reduces the load on servers and allows them to perform specialized services (such as mail-list generation, billing, etc.) more effectively. Person-to-content communication was given a real push by Internet WWW services at the beginning of the 1990s. Person to person is used to discriminate between P2C and the previous traditional situation with exclusively person to person. Content can be split into media and information. Translated to mobile communication it becomes 'mobile media' and 'wireless Internet'. 3.8 ADAPTATION OF THE BASIC TRIANGLE AND FPs TO THE CONVERGED MULTI-SERVICE NETWORK The new functions on top of bit pipe provision will also require additions to FPs. The functions are more or less installed in the user-service interface. This means that the end-user perception must be examined. The users have a broad scope of needs and demands as shown in Chapter 2. The success factors used in this book justify choosing the user-network interface as a focal point. The book focuses on three issues in this interface: services, security and QoS. The service area is introduced in this chapter, security in Chapter 6 and QoS in Chapter 7. Chapter 5 is the main chapter on servic