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A number of different measures of service are then discussed, followed by the presentation of several models of interactive use of networks.Then, the practical aspects of gathering data and applying this information to service measurement are reviewed, leading to a presentation of the NMS as it is implemented.The note ends with a discussion of applications for the NMS.

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Measures, tools, and techniques applicable to the performance measurement of computer communication networks are described for technicians who procure computer services from a remote access network. Cost considerations are discussed as a major component of evaluation, and measurement and evaluation methodologies are surveyed. External measurement techniques that encompass both the intermediate user-network interface and the distant interface between user and the serving computer system are recommended. An 80-item bibliography concludes the report. (CH) * * via the ERIC Document Reproduction Service (EDRS). EDRS is not * * responsible for the quality of the original document. Reproductions * * supplied by EDRS are the best that can be-made from the original.