Flexible Exception Handling in the OPERA Process Support System

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Flexible Exception Handling in the OPERA Process Support System
Exceptions are one of the most pervasive problems in process support systems. In installations expected to handle a large number of processes, having exceptions is bound to be a normal occurrence. Any programming tool intended for large, complex applications has to face this problem. However, current process support systems, despite their orientation towards complex, distributed, and heterogeneous applications, provide almost no support for exception handling. This paper shows how exible mechanisms for failure handling are incorporated into the OPERA process support system using a combination of programming language concepts and transaction processing techniques. The resulting mechanisms allow the construction of fault-tolerant work ow processes in a transparent and exible way while ensuring reusability of work ow components.
Claus Hagen, Gustavo Alonso
Added 04 Aug 2010
Updated 04 Aug 2010
Type Conference
Year 1998
Authors Claus Hagen, Gustavo Alonso
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