Functional Decomposition Model
Decomposition of abstracted autonomous system functions that can be used to build a system in satisfaction of a particular mission.
Functional Decomposition Profile
The Functional Decomposition Model (FDM) can be used to model a mission, helping to identify smaller sets of modular autonomous systems functions needed to accomplish mission goals. The FDM provides metadata for each function including pedigree, maturity, measures of effectiveness, measures of performance, and responsible parties. This helps to apply MOSA principles by providing a modular viewpoint into the functions that are typically found in RAS that can be procured separately and provided by various suppliers and then integrated into the system, establishing a robust product line for RAS programs.
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Functional Decomposition Hierarchy
The FDM helps to manage obsolescence of system components by providing insight into where the hierarchy of functions are vulnerable to new technologies and how to mitigate and replace these small modular components over time. Also, this viewpoint offers insights into potential gaps in technology that must be developed under R&D or other means to complete an acquisition strategy by exposing common functions performed in critical or dangerous mission segments. Figure 4 shows the top-level functions provided by the FDM.