Synergizing Model-Based Systems Engineering, Modularity, and Software Container Concepts to Mitigate Obsolescence
Open AccessObsolescence resolution costs are estimated to exceed $10 billion annually for military expenditures. Yet, leading systems engineering handbooks do not address integrating obsolescence management into the systems engineering processes and life cycle stages. Further, Model-Based Systems Engineering (MBSE) and modularity are not proactively used to reduce those costs early in the design process. Without consideration early in the systems engineering life cycle, obsolescence management tends to be more reactive and costlier. While research has independently advanced in the areas of obsolescence management, MBSE, and modularity, no work has been accomplished to synergize these areas specifically to mitigate obsolescence impacts. Though MBSE alone can benefit obsolescence management, the combination of MBSE and modularity principles could enhance strategic management of obsolescence (as defined by Sandborn). The research represents a proof of concept, and results presented herein illuminate the untapped synergy at the nexus of obsolescence management, MBSE, and modularity research. Borrowing from the modular software engineering “container” concept, the container MBSE modeling approach presented provides systems engineers a method to influence the system design that constrains obsolescence impacts to the fewest system modules practicable. Applying this so-called model-based strategic obsolescence management approach as early as the system architecting and design phases, systems engineers can minimize ambiguity and reduce system life cycle cost and risk. Additionally, the research results presented include proposed general and specific content for incorporation into systems engineering handbooks and other guidance documents to integrate obsolescence management throughout the systems engineering life cycle. This content can enable project managers and systems engineers to mitigate adverse impacts of inevitable obsolescence more effectively and less expensively.
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