Toggle Main Menu Toggle Search

Open Access padlockePrints

Coordinated exception handling in real-time distributed object systems

Lookup NU author(s): Professor Alexander RomanovskyORCiD, Professor Brian RandellORCiD


Full text for this publication is not currently held within this repository. Alternative links are provided below where available.


Exception handling in complex concurrent and distributed systems (e.g. ones involving cooperating rather than just competing activities) is often a necessary, but difficult task. No widely accepted models or approaches exist in this area. The object-oriented paradigm, for all its structuring benefits, and real-time requirements each add further difficulties to the design and implementation of exception handling in such systems. In this paper, we develop a general structuring framework based on the coordinated atomic (CA) action concept for handling exceptions in distributed object systems, in which exceptions in both the value and the time domain are taken into account. In particular, we attempt to attack several difficult problems related to real-time system design and error recovery, including action-level timing constraints, time-triggered CA actions, and time-dependent exception handling. The proposed framework is then demonstrated and assessed using an industrial real-time application.

Publication metadata

Author(s): Romanovsky A, Xu J, Randell B

Publication type: Article

Publication status: Published

Journal: Computer Systems Science and Engineering

Year: 1999

Volume: 14

Issue: 4

Pages: 197-207

Print publication date: 01/07/1999

ISSN (print): 0267-6192

ISSN (electronic):

Publisher: CRL Publishing Ltd.