Multi-party update conflict: The problem and its solutions

T. F. Keefe, D. J. Thomsen, W. T. Tsai, M. R. Hansch

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations


Currently there is a great deal of interest concerning polyinstantiation in database management systems (DBMSs). However, polyinstantiation is a specific solution to a problem faced by all secure systems, and the problem itself is not well characterized. The problem stems from the interference between subjects of different security compartments. The authors focus on this problem, which they call multiparty update conflict (MUC). They discuss and evaluate some solutions to the MUC problem, such as polyinstantiation and rigid classification. A framework for a class of MUC solutions based on polyinstantiation is described, and several intermediate solutions between rigid classification and polyinstantiation are enumerated.

Original languageEnglish (US)
Title of host publicationFifth Annu Comput Secur Appl Conf
Editors Anon
PublisherPubl by IEEE
Number of pages10
ISBN (Print)0818620064
StatePublished - Dec 1 1989
EventFifth Annual Computer Security Applications Conference - Tucson, AZ, USA
Duration: Dec 4 1989Dec 8 1989

Publication series

NameAnnual Computer Security Applications Conference


OtherFifth Annual Computer Security Applications Conference
CityTucson, AZ, USA

ASJC Scopus subject areas

  • Software
  • General Engineering

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