Several facilities of class diagram generation from two-hemisphere model in the framework of MDA

Abstract

In Object Management Group Model Driven Architecture models are the primary artifacts during software development, which are presented at the different levels of abstraction from programming details. Class diagram is the most often used model for visual representation of static aspects of software system, but still the formal generation of class diagram from problem domain is under investigation. The paper describes principles of development of class diagram at the conceptual level by using problem domain knowledge presented in the form of two-hemisphere model. Problem domain is presented as two interrelated models of the most important aspects of a system, namely, business process and concept models. Abilities of class diagram generation from two-hemisphere model are presented as a collection of graph transformations and are demonstrated by practical example for abstract problem domain. KeywordsModel driven architecture, platform independent model, model transformations, two-hemisphere model, UML class diagram INTRODUCTIONOne of the latest researches goals in software engineering is to find a software development process, which would provide fast and qualitative software development. Most of currently proposed methodologies and approaches try to make the development process easier and still more qualitative. For achievement of this goal the role of explicit models becomes more and more important.

Improvement of the Two-Hemisphere Model-Driven Approach for Generation of the UML Class Diagram

“…Successful application of the two-hemisphere model transformation into the UML class diagram served as a motivation to support these transformations with the software system. The first software prototype of the tool supporting two-hemisphere model based transformation was introduced in 2008 [5], [9]. The prototype used textual information in special format as a source and produced the text file containing description of the resulting UML class diagram as a specification, where classes, attributes, methods and relationships were listed in a pre-defined format.…”

System Modeling in UML with Two-Hemisphere Model Driven Approach

“…Fig. 1 shows the schema of two-hemisphere model driven approach for system development [19]. The schema presents the way how elements of business process model (graph G1 in Fig.…”

“…The analysis of two-hemisphere model proposed in [19] and the application of two-hemisphere model for knowledge architecture development in the task of study program development presented in [6] make us to think that notational conventions of UML communication diagram is more suitable for definitions of formal transformations of twohemisphere model into object interaction and then into class diagram, than the application of UML sequence diagram.…”

Obtaining of elements of UML class diagram from initial information about problem domain

“…Fig. 2 presents a sketch of two-hemisphere model, where both -business process and concept models are presented as graphs [7].…”

“…Graph G2 which is concept model consists of two concepts -DataTypeA and DataTypeB, where DataTypeA defines data type for event 1 and event 2 of business process model, and DataTypeB defines data type for event 3 and event 4 of business process model. For performing of transformation to class diagram the intermediate model (graph G3 on Fig.3) is introduced in [7]. Intermediate model is used to simplify the further transition between business process and object interaction models, which now is presented in the form of UML communication diagram.…”