The article is devoted to the description of structural methods of processes modeling, represented by visual languages of business processes modeling of socio-economic systems, designed not only for static functional/information modeling of processes, but also allowing to simulate their behavior.
The description of grammar of structural languages of designing business processes of the enterprise which subsets it is offered to adapt for expansion of input language of the tool complex of RDS (Calculation of Dynamic Systems) that will allow to use opportunities of a complex for the solution of problems of the analysis not only dynamic, but also business models of organizational and economic systems are given. Provides the syntax and semantics of DFD, STD, ERD-notations.
For the formal description of the syntax it is proposed to use the apparatus of mixed grammars, which are a combination of graph and ordinary grammars. The article describes the grammar that generates the simplest dialect of DFD-technology, informally describes the semantic aspects of the language, in particular the semantics of relations between the objects of the language.
The types and sorts of evaluation criteria in the problems of business models quality analysis, syntax errors detection, as well as static semantics errors during their implementation in RDS are described.