Summary It is time to summarize the topics discussed in previous chapters. End users want to have access to different kind of information access and entertainment-related services with as simple technical means as possible and with as understandable a billing as possible. Such a goal not only brings economical benefits, but also means that the customer has smaller number devices and interfaces to master and to maintain. Beneficially, all kinds of services should be available to the end user using a single communication channel only for each context of use. One such context of use is home or corporate use, where. | 10 Summary It is time to summarize the topics discussed in previous chapters. End users want to have access to different kind of information access and entertainment-related services with as simple technical means as possible and with as understandable a billing as possible. Such a goal not only brings economical benefits but also means that the customer has smaller number devices and interfaces to master and to maintain. Beneficially all kinds of services should be available to the end user using a single communication channel only for each context of use. One such context of use is home or corporate use where high-bandwidth access is possible. Another context is mobile use where the services are provided via a handheld terminal or via a laptop. Communication media with per-user throughput allowing the delivery of also real-time content is becoming widely available examples being fibre access to home or SOHO environments xDSL IEEE and 3G radio interface technologies such as GPRS and WCDMA. The mere existence of suitable medium is not sufficient but the interface to the applications should be made such that achieving adequate service quality support for each service type is possible. Equally the service quality support interface from the applications should be easy to use easy to understand for the end user and as standard as possible across platforms. The services differ with respect to their delivery requirements according to their composition containing at most general multiple components with differing requirements. Data-type services such Implementing Service Quality in IP Networks Vilho Raisanen 2003 John Wiley Sons Ltd ISBN 0-470-84793-X 300 SUMMARY as e-mail only require reliable delivery whereas more interactive services such as Internet browsing pose further limitations on the underlying technical solution. Most demanding service types are real-time services with each service instance being made up of a stream of data in the network. Streamed
