ETR 003 : 20002

Foreword
Introduction
1 Scope
2 References
3 Definitions and abbreviations
  3.1 Definitions
  3.2 Abbreviations
4 Quality of Service (QoS)
  4.1 Generic definition of QoS
  4.2 Particular definitions of QoS
  4.3 General comments
5 Network Performance (NP)
6 Service performance
7 Relationship between QoS and NP
8 Methodology for handling aspects of NP related to QoS
  8.1 The basics of the methodology
  8.2 Capture and defining of user's/customer's QoS requirements
  8.3 Arriving at QoS offered
  8.4 Mapping and specifying NP objectives
  8.5 Measurement of NP (including feedback)
  8.6 Establishment of QoS achieved
  8.7 Assessment of QoS perceived and subsequent follow-up
Annex A: An example of generic framework for capture of
         user's/customer's QoS requirements
      A.1 Introduction
      A.2 Glossary of terms
      A.3 Description of cells in the generic QoS matrix
History

Describes the methods for deriving quality of service from network performance. Has been developed to: distinguish between quality of service and user option; provide descriptions of network performance and quality of service; describe the features of and the relationship between network performance, quality of service and user option; illustrate how the quality of service and the network performance concepts are applied in digital networks; identify generic performance parameters; distinguish between quality of service and user option; and indicate and classify performance concerns for which parameters may be needed.