Synergizing model-based systems engineering, modularity, and software container concepts to manage obsolescence

摘要

Costs to replace obsolete parts are estimated to exceed $10 billion annually for military expenditures.(1) Other industries experience high costs related to obsolete parts as well.(2-5) Synergies between Model-Based Systems Engineering (MBSE) and modular design concepts should be leveraged to reduce those costs early in the design process. To date, obsolescence management, MBSE, and modularity have been studied, advanced, and presented in a mostly disjunct manner. Consequently, work to synergize these areas specifically to mitigate obsolescence impacts is lacking. The research presented herein illuminates that the untapped synergy at the nexus of obsolescence management, MBSE, and modular design can be leveraged to enhance strategic management of obsolescence. Borrowing from the modular software engineering "container" concept(6), the MBSE container modeling approach presented provides systems engineers, architects, and designers with a novel method to influence the system design by minimizing the number of system modules affected by obsolescence. By applying this model-based strategic obsolescence management approach early in the system architecting and design stages, system engineering teams can reduce the associated complexity, lifecycle costs, and risk of obsolete parts replacement.