V. Petruk Galina, D. Boush Galina, A. Shcherbakova Elena, Choosing Terminology to Define "Knowledge-Based Clusters", International Business Management, Volume 10,Issue 20, 2016, Pages 4719-4725, ISSN 1993-5250, ibm.2016.4719.4725, (https://makhillpublications.co/view-article.php?doi=ibm.2016.4719.4725) Abstract: The study examines and performs critical analysis of "cluster" definitions, made by both foreign and Russian researchers. It also gives an insight into the phenomenon of "knowledge-based cluster" and provides the authors’ idea of this term. The triad approach that is used and developed by the theory of dynamic information systems serves as a methodology for defining the term "knowledge-based cluster". Keywords: Cluster;knowledge-based cluster;economy of knowledge;approach;triad approach;theory of dynamic information systems