SYSC ODL: "Digital Engineering is too important to be left alone to MBSE Practitioners" by Rao Mennepalli
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Weapon systems critical to national security are increasingly becoming more complex and expensive. The cost overruns alone are estimated to be about half-a-trillion Dollars, making it the second largest defense budget in the world. To address this problem, DOD introduced the Digital Engineering initiative in 2018. Even though its vision and scope are laudable, not all the areas/disciplines involved in realizing these weapon systems are excited. There is a certain poverty of imagination in naming the vision as “Digital Engineering.” Most people misunderstood it to be an engineering initiative (in particular Systems Engineering). This paper redefines the term “Engineering” in Digital Engineering as a process (e.g., engineering a political coup rather than like Mechanical/Electrical/Systems Engineering), which then addresses all the five pillars of Digital Engineering. Another disturbing trend noticed by the author is that the Systems Engineering community equated Model Based Systems Engineering (MBSE) to Digital Engineering. This prevents new thinking and thereby limits or negates the vision of Digital Engineering. This paper also touches upon the origins of Systems Engineering at Bell Labs, obsession with the term “Model” to mean anything and everything, including a text document or a static picture, and Digital Twins.