An Assumptions Management Framework for Systems Software
Tirumala, Ajay Sudarshan
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https://hdl.handle.net/2142/81744
Description
Title
An Assumptions Management Framework for Systems Software
Author(s)
Tirumala, Ajay Sudarshan
Issue Date
2006
Doctoral Committee Chair(s)
Lui Sha
Department of Study
Computer Science
Discipline
Computer Science
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Computer Science
Language
eng
Abstract
Case-studies were conducted on representative systems to study the nature and number of defects caused by invalid assumptions. It was found that a significant number of defects in the systems studied had invalid assumptions as the root-cause. It was found that AMF has the ability to encode and validate majority of the assumptions that caused defects in these systems. This can prevent such defects in the future or warn in advance of potential defects when assumptions are invalid. Analyzing and correcting one of the invalid assumptions in Iperf, an end-to-end bandwidth measurement tool, resulted in significantly better bandwidth estimates by Iperf across high-bandwidth networks. In most cases, it also resulted in savings of over 90% in terms of both network traffic generated and bandwidth measurement times.
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