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Criteria development for upgrading computer networksBeing an infrastructure system, the computer network has a fundamental role in the day to day activities of personnel working at KSC. It is easily appreciated that the lack of 'satisfactory' network performance can have a high 'cost' for KSC. Yet, this seemingly obvious concept is quite difficult to demonstrate. At what point do we say that performance is below the lowest tolerable level? How do we know when the 'cost' of using the system at the current level of degraded performance exceeds the cost of upgrading it? In this research, we consider the cost and performance factors that may have an effect in decision making in regards to upgrading computer networks. Cost factors are detailed in terms of 'direct costs' and 'subjective costs'. Performance factors are examined in terms of 'required performance' and 'offered performance.' Required performance is further examined by presenting a methodology for trend analysis based on applying interpolation methods to observed traffic levels. Offered performance levels are analyzed by deriving simple equations to evaluate network performance. The results are evaluated in the light of recommended upgrade policies currently in use for telephone exchange systems, similarities and differences between the two types of services are discussed.
Document ID
19960020718
Acquisition Source
Kennedy Space Center
Document Type
Conference Paper
Authors
Efe, Kemal
(University of Southwestern Louisiana Lafayette, LA United States)
Date Acquired
August 17, 2013
Publication Date
November 1, 1995
Publication Information
Publication: The 1995 Research Reports: NASA/ASEE Summer Faculty Fellowship Program
Subject Category
Computer Systems
Accession Number
96N24241
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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