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An Automated Wrapper-based Approach to the Design of Dependable Software

Authors:
Matthew Leeke
Arshad Jhumka

Keywords: Importance, Metric, Replication, Variable, Wrappers

Abstract:
The design of dependable software systems invariably comprises two main activities: (i) the design of dependability mechanisms, and (ii) the location of dependability mechanisms. It has been shown that these activities are intrinsically difficult. In this paper we propose an automated wrapper-based methodology to circumvent the problems associated with the design and location of dependability mechanisms. To achieve this we replicate important variables so that they can be used as part of standard, efficient dependability mechanisms. These well-understood mechanisms are then deployed in all relevant locations. To validate the proposed methodology we apply it to three complex software systems, evaluating the dependability enhancement and execution overhead in each case. The results generated demonstrate that the system failure rate of a wrapped software system can be several orders of magnitude lower than that of an unwrapped equivalent.

Pages: 43 to 50

Copyright: Copyright (c) IARIA, 2011

Publication date: August 21, 2011

Published in: conference

ISSN: 2308-4324

ISBN: 978-1-61208-149-6

Location: Nice/Saint Laurent du Var, France

Dates: from August 21, 2011 to August 27, 2011