The paper presents a method of organizations’ sustainability assessment with the use of fuzzy logic whereby economic, environmental, and social components are fundamental to the model. Each of the inputs is treated individually, and the application of fuzzy logic helps provide an overall measure. The proposed model can be used to evaluate an organization’s sustainable development level, and to compare organizations in a specific sector. Purpose: The paper presents a method of organizations’ sustainability assessment with the use of fuzzy logic. The proposed model enables the evaluation of an individual organization’s sustainable development level, but also draws comparisons between organizations in a specific sector. Design/methodology/approach: In this paper a multistage fuzzy reasoning model is presented to assess an organization’s sustainability. The model is based on 3 fundamental components: economic, environmental and social. Each of the inputs is treated individually and then combined with the aid of fuzzy logic to provide an overall measure. Findings: The verification of the method shows that it can be easily applied. The main advantages of the method used here is the intuitive understandability of the process of reasoning, its results interpretation, and in its objectivity. The flexibility of the method allows for a change of the number of indicators, the use of selected indicators, the use of indicators expressed in different units of measurement, as well as introducing weights to their assessment. Originality/value: According to our knowledge a similar method doesn’t exist. A well-developed system of macroeconomic evaluation cannot be easily applied to the goals of companies. In addition, the majority of the existing proposed methods to assess sustainable development is inadequate to evaluate that of organizations’. The proposed method in this paper is essentially important for the practice of management of organizations. It enables the evaluation of an individual organization’s sustainable development level, but also compares organizations within a specific sector. The results it provides may become a reference for repair plans, ecological programs and used in the process of strategic decision-making.
W artykule przedstawiono metodę oceny poziomu zrównoważonego rozwoju organizacji z wykorzystaniem wnioskowania rozmytego. Podstawę metody stanowi ocena aspektów środowiskowych, społecznych i ekonomicznych. Proponowane rozwiązanie umożliwia ocenę poszczególnych organizacji, jak też dokonywanie porównań pomiędzy nimi. Elastyczność metody pozwala na zmianę liczby wskaźników, wykorzystywanie wybranych parametrów oraz wprowadzenie wag.