Abstract
The existing literature on system modularity postulates several benefits of modular systems. One reason the military has taken an interest in modularity is to allow responsive design, build, and launch of space vehicles. Researchers have developed modularity metrics, but the literature acknowledges a lack of application of modularity metrics. This paper describes some of the salient modularity metrics and applies them to a case study involving two modular precision guided munitions (PGM) as an illustrative example for potential application to motivating challenge of responsive space vehicle launches. A discrete event simulation model of the assembly process for each system in the case study is described, followed by an examination of modularity metrics with respect to system assembly times. Finally, a discussion regarding the relationship between modularity and system assembly time is presented with possible implications.
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