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Problem-oriented databases in the process of multistage decision making

Lebiediewa S.

Systems : journal of transdisciplinary systems science

2001

Vol. 6, No. 1-2

111-126

The specific questions of designing problem-oriented databases to be applied in systems of multistage decision making are presented, these questions concerning such aspects as the genesis and distinct functions of the management systems, the relation to the reality, the applications, the data structures and the data manipulation language. Two such databases have been discussed: a database for multistage identification and a database for multistage recognition. A comparison of a database and a knowledgebase has been carried out.

On the Equivalence of Problem-Oriented Databases

Lebiediewa S.

International Journal of Applied Mathematics and Computer Science

1999

Vol. 9, no 4

965-977

A comparison is made between problem-oriented databases for multistage decision making and general-purpose databases. An exemplary problem-oriented database IDEN for supporting the process of multistage identification is discussed in detail. An equivalence condition for problem-oriented databases is formulated and then the equivalence with respect to data structures and operations is proved for hierarchical, network and relational models of the IDEN database.