Systems engineering in product definition

Product definition in virtual environment is done in the course of engineer and built in knowledge controlled generation of entities for lifecycle integrated model of product. Two recently emerged development directions in this area are company intelligent property (IP) controlled generic product model and unified abstraction based product concept model of multidisciplinary products. These two directions were mixed in the requirement, functions, logical, and physical (RFLP) structure of product model. RFLP structure facilitates product modeling using some methods from systems engineering (SE). The Laboratory of Intelligent Engineering Systems (LIES) at Óbuda University recognized the importance of the above developments and joined to research in relevant issues. Initial results at LIES in abstraction at product definition were developed into method for request driven behavior centered generation of RFLP structure elements. In this paper, citation of preliminary results is followed by introduction of the Multilevel Abstraction Based Self Adaptive Definition (MAAD) method and its role in driving RFLP structure elements. Following this, request engineering (RE) and systems engineering (SE) characteristics are discussed on the levels of MAAD structure. Finally, human influence on the requirements level of MAAD structure and connections of MAAD structure with its virtual-physical environment are discussed.