The ontology of processes diagnosis

The paper represents the ontology of diagnosis of processes with dynamics of symptoms. The ontology allows formalizing any anomalies as a continuously developing internal processes that are not inherent in a normally functioning system. The need to develop such unified ontology is dictated by need of decrease in labor input of creation of ontology of diagnostics for concrete subject domain. For its receiving it will only be required to specify some of its concepts and relations which are a feature of subject domain. The paper can be useful for developers of diagnostic systems and for specialists in area of theory and practical application of ontologies.