As a visual representation of the entire system or design, this FMEA Corner Functional Block Diagram is useful for depicting the scope of the analysis, its boundaries, and the interfaces between the items. Every System or Design FMEA should begin with creating an FMEA Block diagram. By outlining the boundaries of the FMEA, the FMEA team can reach a consensus on its precise scope, including any interfaces. The diagram's components can be linked to their counterparts in the FMEA to prevent any gaps in analysis from occurring.