Multi-criteria decision analysis with fuzzy preference areas

The problem of alternatives ranking based on the preferences defined in fuzzy areas was conceded. Formalization of the concept of fuzzy scales criteria and fuzzy preferences was given. The algorithm of fuzzy ranking alternatives was developed. To store information about a formalized fuzzy preferences there were discussed some approaches based on relational and JSON data structures. Web services for decision support (ws-dss.com) contains fuzzy ranking software implementation for free use.