This paper presents the approach to creation of computational platforms in the basics of UGENE Workflow Designer. This platform is based on the internal programming language. It demonstrates a method of keeping the system consistent and handy to maintain and develop if you follow the concepts of the platform internal model and the concepts of the programming language syntax. UGENE Workflow Designer is designed to solve the bioinformatics tasks; and the UWL language is the DSL of bioinformatics. The paper describes the feature of how to reuse the basics of the platform in some other application areas.