Going modular? Meet data and control coupling

Many guidelines, such as the DO-178C standard that defines the airworthiness regulations for the creation of civil airborne systems, require that a control and data coupling assessment be performed on safety-critical software to ensure that these design, integration, and test objectives are met. Similarly, the UK Ministry of Defence Standard 00-55 “Requirements for Safety-Related Software in Defence Equipment” requires that metrics, such as control and data coupling, be used to assess software modularity.

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