Browse by author
Lookup NU author(s): Dr Stephen RiddleORCiD, Nigel Jefferson
System designers using off-the-shelf components (OTSCs), whose internals they cannot change, often use add-on "wrappers" to adapt the OTSCs' behaviour as required. In most cases, wrappers are used to change "functional" properties of the components they wrap. In this paper we discuss instead "protective wrapping", the use of wrappers to improve the dependability - i.e., "non-functional" properties like availability, reliability, security, and/or safety - of a component and thus of a system. Wrappers can improve dependability by adding fault tolerance, e.g. graceful degradation, or error recovery mechanisms. We discuss the rational specification of such protective wrappers in view of system dependability requirements, and highlight some of the design trade-offs and uncertainties affecting system design with OTSCs and wrappers, and differentiating it from other forms of fault-tolerant design.
Author(s): van der Meulen M, Riddle S, Strigini L, Jefferson N
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: COTS-Based Software Systems: 4th International Conference (ICCBSS)
Year of Conference: 2005
Pages: 168-177
Date deposited: 26/11/2004
Publisher: Springer-Verlag
URL: http://dx.doi.org/10.1007/978-3-540-30587-3_27
DOI: 10.1007/978-3-540-30587-3_27
Notes: ISSN: 0302-9743 (Print) 1611-3349 (Online)
Library holdings: Search Newcastle University Library for this item
Series Title: Lecture Notes in Computer Science
ISBN: 3540245480