Abstract
The development of rules for transitions between the design stages of dynamic systems: the goals of the system consumer, system requirements, technical solutions and consumer properties of systems, remains one of the most important aspects in the design of complex systems. The article implements an extension of the IDEF0 notation – a notation system for functions and their components. For a more detailed functional description of dynamic systems, an extension of the semantic notation language is introduced. Such an extension allows getting more detailed information about the system as a whole, and creates links between the functional and behavioral models. Extended semantics is applied to the design of functional descriptions of the aircraft parts. The notation extension is also a component of the lifecycle management system under development, that, in particular, should solve the issue of engineering semantics deficiency, not allowing to ensure in the elaborating processes the correspondence between requirements and technical solutions, the verification of those relationships and the validation of the system being developed. As a result, the expansion of the IDEF0 notation, new, expanded properties of the system model will be formed, which contribute to solving validation and verification problems in the development of complex technical systems.
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