The domain of traditional hypermedia is revolutionized by the arrival of the concept of adaptation. Currently, the domain of AHS (adaptive hypermedia systems) is constantly growing. A major goal of current research is to provide a personalized educational experience that meets the needs specific to each learner (knowledge level, goals, motivation, etc.). In this article, we have studied the possibility of implementing traditional features of adaptive hypermedia in an open environment, and discussed the standards for describing learning objects and architectural models based on the use of ontologies as a prerequisite for such an adaptation. (Contains 1 table and 6 figures.)