DocumentCode :
3517065
Title :
On systematic design of protectors for employing OTS items
Author :
Popov, Peter ; Riddle, Steve ; Romanovsky, Alexandre ; Strigini, Lorenzo
Author_Institution :
Centre for Software Reliability, City Univ., London, UK
fYear :
2001
fDate :
2001
Firstpage :
22
Lastpage :
29
Abstract :
Off-the-shelf (OTS) components are increasingly used in application areas with stringent dependability requirements. Component wrapping is a well known structuring technique used in many areas. We propose a general approach to developing protective wrappers that assist in integrating OTS items with a focus on the overall system dependability. The wrappers are viewed as redundant software used to detect errors or suspicious activity and to execute appropriate recovery when possible; wrapper development is considered as a part of system integration activities. Wrappers are to be rigorously specified and executed at run time as a means of protecting OTS items against faults in the rest of the system, and the system against the OTS item´s faults. Possible symptoms of erroneous behaviour to be detected by a protective wrapper and possible actions to be undertaken in response are listed and discussed. The information required for wrapper development is provided by traceability analysis. Possible approaches to implementing “protectors” in the standard current component technologies are briefly outlined
Keywords :
software fault tolerance; software reusability; component wrapping; dependability requirements; off-the-shelf components; system integration activities; traceability analysis; wrapper development; Application software; Computer architecture; Computer errors; Costs; Government; Information analysis; Open source software; Protection; Software reliability; Wrapping;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Euromicro Conference, 2001. Proceedings. 27th
Conference_Location :
Warsaw
ISSN :
1089-6503
Print_ISBN :
0-7695-1236-4
Type :
conf
DOI :
10.1109/EURMIC.2001.952434
Filename :
952434
Link To Document :
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