Integration of semiqualitative and qualitative safety models

Mirko Dohnal; Raija Koivisto; J. Vystrcil

doi:10.1016/0951-8320(92)90056-Q

Integration of semiqualitative and qualitative safety models

Mirko Dohnal, Raija Koivisto, J. Vystrcil

Research output: Contribution to journal › Article › Scientific › peer-review

2 Citations (Scopus)

Abstract

Integration of a qualitative submodel, qualitative query, semiqualitative submodel (see Ref. 6) and semiqualitative query is described. The resulting hybrid model represents the optimal trade-off between the accuracy of semiqualitative modelling and the flexibility of qualitative common sense. Hybrid modelling can eliminate many spurious solutions.
A general integration approach is represented by an algorithm which iteratively eliminates impossible qualitative and semiqualitative combinations.
An example (chemical reactor and two-level control system) is used to demonstrate how numbers of, for example, qualitative states (solutions) are decreased by semiqualitative submodels.

Original language	English
Pages (from-to)	33-38
Journal	Reliability Engineering and System Safety
Volume	37
Issue number	1
DOIs	https://doi.org/10.1016/0951-8320(92)90056-Q
Publication status	Published - 1992
MoE publication type	A1 Journal article-refereed

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abstract = "Integration of a qualitative submodel, qualitative query, semiqualitative submodel (see Ref. 6) and semiqualitative query is described. The resulting hybrid model represents the optimal trade-off between the accuracy of semiqualitative modelling and the flexibility of qualitative common sense. Hybrid modelling can eliminate many spurious solutions. A general integration approach is represented by an algorithm which iteratively eliminates impossible qualitative and semiqualitative combinations. An example (chemical reactor and two-level control system) is used to demonstrate how numbers of, for example, qualitative states (solutions) are decreased by semiqualitative submodels.",

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N2 - Integration of a qualitative submodel, qualitative query, semiqualitative submodel (see Ref. 6) and semiqualitative query is described. The resulting hybrid model represents the optimal trade-off between the accuracy of semiqualitative modelling and the flexibility of qualitative common sense. Hybrid modelling can eliminate many spurious solutions. A general integration approach is represented by an algorithm which iteratively eliminates impossible qualitative and semiqualitative combinations. An example (chemical reactor and two-level control system) is used to demonstrate how numbers of, for example, qualitative states (solutions) are decreased by semiqualitative submodels.

AB - Integration of a qualitative submodel, qualitative query, semiqualitative submodel (see Ref. 6) and semiqualitative query is described. The resulting hybrid model represents the optimal trade-off between the accuracy of semiqualitative modelling and the flexibility of qualitative common sense. Hybrid modelling can eliminate many spurious solutions. A general integration approach is represented by an algorithm which iteratively eliminates impossible qualitative and semiqualitative combinations. An example (chemical reactor and two-level control system) is used to demonstrate how numbers of, for example, qualitative states (solutions) are decreased by semiqualitative submodels.

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DO - 10.1016/0951-8320(92)90056-Q

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JO - Reliability Engineering and System Safety

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Integration of semiqualitative and qualitative safety models

Abstract

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