Telecommunications Quality of Service Management: From Legacy to Emerging Services

Management of QoS has many strands of associated activities and some of these are distributed in various parts of this book. In this section four topics of specific interest have been focused upon; comparisons of performance, economics of QoS, security and fraud.
Comparison of QoS has become necessary in the competitive environment in which telecommunications service provider companies operate. Comparisons are important for users, regulators, service providers and network providers. The user needs to compare delivered performances of various providers within the country and perhaps to a lesser extent that of the international providers. The business user sometimes needs to compare the offered quality both nationally and internationally. Service providers find it necessary to compare their offered and delivered performance against the competitors . They could also benefit from comparing customer perceptions of their services with those of competitors . This chapter gives a brief review of some of the existing comparisons, identifies the limitations and proposes solutions to make meaningful comparisons possible.
Comparisons of performance within a country may be carried out on each of the four viewpoints of QoS. Though the four viewpoints arose from the Quality Cycle model principally designed for the legacy services, the principles may be applied to the emerging services such as Internet supported services and...