Expert System Prognosis lev.1. The expert system Prognosis lev.1 is intended for prognostication of result of lesson at academic lyceums, professional colleges, primary and secondary schools, etc. An expert system estimates influencing of 24 main factors which affect the result of teaching. An expert system presents a result in an evident graphic way. An expert system can produce the analysis and print the results. The use of Prognosis in your work will help in preparation of lessons. The main purpose of Prognosis is to make the teachers job more technological.