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The Computer Journal 2001 44(6):569-587; doi:10.1093/comjnl/44.6.569
© 2001 by British Computer Society
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A Unified Meta-Level Software Architecture for Sequential and Concurrent Exception Handling

Alessandro F. Garcia1, Delano M. Beder2 and Cecília M. F. Rubira2

1 Computer Science Department, PUC/RJ, Brazil Email: afgarcia@inf.puc-rio.br 2 Institute of Computing, UNICAMP, Brazil

Dependable object-oriented software systems are inherently complex and have to cope with an increasing number of exceptional conditions in order to meet system dependability requirements. This work proposes a software architecture which integrates uniformly both concurrent and sequential exception handling. The exception handling architecture is independent of programming language or exception handling mechanism, and its use can minimize the complexity caused by the handling of abnormal behavior. Our architecture provides, during the architectural design stage, the context in which more detailed design decisions related to exception handling are made in later development stages. This work also presents a set of design patterns which describes the static and dynamic aspects of the components of our software architecture. The patterns allow a clear separation of concerns between the system's functionality and the exception handling facilities, applying the computational reflection technique.

Received 2 November, 2000. Revised 4 May, 2001.


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