An object-oriented methodology MERODE is analyzed in this paper. Main aim of the article is to demonstrate practical application of MERODE methodology for creating computerized information systems, analyzing advantages and disadvantages of the new methodology. MERODE models are being combined with UML models. MERODE is used for modeling objects and events models that concludes classes and methods in the program code. UML models ar being used for analysing organisation aims, use cases that need to be computerized. The program code, recieved from MERODE models is more extensive than generated from UML models.