 The paper discusses how semantic interoperability can be achieved by using an ontological taxonomy. The authors propose extending the existing polyhedron platform with an ontology-based information model. They demonstrate their approach by creating two ontological graphs, one on development of a rational way for utilization of methane tank waste at LLC Vasselkivska Poultry Farm and another, on development a method for utilization of methane tank effluent. Finally, they present a hypothetical example of a systematic approach to research and scientific results. This article was authored by Eviniy Bechapavlov, Victor Bechapavlov, Roman Aterosenko, and others.