The software tool of constructive-synthesizing modeling

The concept of constructive-synthesizing modelling is presented. The basic principles are outlined. The classification of constructors by the purpose of constructing and external relations is presented. The types of constructors are defined: generating, transforming, analyzing, optimizing/adapting, algorithmic; standalone, parametric, interactive, multi-designer. Achievements in the application of the constructive-synthesizing approach to solving a number of problems are presented. The tool software environment «Constructor 1.0» has been developed for the formation of constructors by means of the Python language using Qt technology to ensure cross-platform compatibility. for the formation of constructors. On the example of the geometric fractal formation , its functionality is demonstrated. First of all, it concerns the formation of such constructors as a standalone generating, parametric transforming, and unifying multiconstructor. The features of expending transformations in the formation of constructors are shown: specification, interpretation and concretization. The specialization of constructors determines the subject area of constuctiong, the necessary data and operations. To ensure the functioning of the constructing processes, all constructor operations must be interpreted by the corresponding procedures of the algorithmic constructor. The combination of the constructor (model of elements and possible operations) with the algorithmic constructor (model of the executor) forms a constructive system capable of autonomously performing constructing by an internal executor. In concretization, substitution rules and initial conditions are specified. The developed software environment provides a certain flexibility in terms of possible modifications of constructors and constructing processes. The developed tools can be the basis for modelling various structures and constructing processes, especially in the tasks of their optimization and structural adaptation.