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An Expert System Approach for Quality of Life Evaluation

Author Affiliations

  • 1South-West University “Neofit Rilski”, Faculty of Mathematics and Natural Sciences, Department of Informatics, Blagoevgrad, BULGARIA

Res. J. Recent Sci., Volume 4, Issue (11), Pages 134-145, November,2 (2015)


The aim of this study is topresent an architectural framework of expert systems and to describe the design, development, and evaluation of an expert system for quality of life evaluation.A general goal of the article is to develop a prototype of expert system for social area to estimate quality of life. The presented expert system for quality of life evaluation was designated to be useful and helpful to specialists in social area. The proposed new expert system uses only qualitative data. That is the way it differs from the old methods for measuring the quality of life and the standard of living; all of them have been using only quantitative data. The expert system also uses certainty factor in its rules indicating the strength of belief in the rule. The system model consists of 150 rules covering 49 indicators of 8 factors for social area. These indicators cover: Economic situation; Housing and environment; Employment, education and skills; Structure of the household and family relationships; Balance between work and life; Health and healthcare; Urban subjective; Concepts of the quality of society. The indicators and the method of quality of life assessment were selected from series of discussions with human experts in the field of social sciences. An expert system shell called CLIPS© is used to develop a prototype of expert system which uses facts and heuristic rules to estimate the quality of life of people. The system was verified and validated for completeness, consistency, and correctness.


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