A process model for engineering of complex systems architectures with complex subsystem architecture reuse in mind

Development of HUMS architectures involves a variety of engineering disciplines, modeling and analysis. HUMS are complex systems, which needs decomposed into several subsystems in order to simply the designing of the system. Currently, engineering of such complex systems have very little support in theory. The subdivided systems have aspects, parameters and interfaces poorly and vaguely defined in an ad-hoc manner due to ad-hoc way of separating complex systems into subsystems. This has lead to a situation where in the decomposition into subsystems been proved futile due to difficulty in reusing them again. Thus, the need of the hour is a design Model for structured decomposition of systems into reusable subsystems. This paper discusses an engineering process meta-model/model whose purpose is to provide detailed descriptions of important properties and the relations between systems and subsystems. The model will contain different strategies for subdivision/decomposition so as to be able to reuse the subsystems effectively. In short the model is aimed at achieving the following goals: i) Efficient knowledge management; ii) Investigating various decision points; iii) Should also recognize various systems/subsystems with similar functionalities and minor requirement variations. These variations should be indicated by decision points. Hence role of decision points in reuse of architectures should be defined. In summary, the paper summarizes the result of our research in coming out with a design model for architectural decomposition of system into subsystems with reuse of the system/subsystem architectures in mind.