The unified structure defined for components of system that simulates the development processes of knowledge areas content. This structure based on representation of the separate concept properties by means of semantic networks structures that consist of relations between concepts. The system of such components includes the tasks entities, tools, knowledge sources and elementary knowledge of domain content. Such a system extends opportunities of analysis, estimation and management in the area of creating new knowledge and applying it. Detailed structure of classes that realize separate components and relations between classes proposed for professional activity domain that deals with analysis of the semantic representation for set of objects considered as foundation of integrated knowledge area formal description. The domain content representation based on classes of domain exploration results and results attributes. These separate attributes form the special set that includes classes of meanings for completeness, style, level, purpose and truth. The tools component integrates knowledge of objects that realize operation of professional tasks solving processes. This component consists of such classes as parameters, formulas, algorithms, cognitive goals, cognitive structures, scenarios and cognitive structures synthesis rules. Main classes of entities component represent knowledge areas, knowledge areas tasks, authors and organizations. Classes of objects and relations between classes are basic elements of the system represented by the cognitive map. The sources component accumulates knowledge that relates to the announced and published results of authors scientific activities. Such a map represents the knowledge area ontology and accumulates the set of elementary and simple knowledge of simulated professional activity domain. The representations of professional tasks and the scheme of synthesis the complex knowledge as hierarchical structures are considered. Such knowledge structures accumulate objects dependencies and represent the objects neighborhoods of a given depth that provide separate professional tasks realization.