DESIGN FAILURE MODE AND EFFECT ANALYSIS
Design FMEA (DFMEA) covers the possibility of product failure and a decrease in its useful life.
and explain this following reason
These are due to the following reasons:
β’ Quality and properties of raw materials, components, and subcomponents.
β’ Geometry/design and shape of the product.
β’ Limits and tolerances given in the product.
β’ Alignment with other components subcomponents, assembly, systems, or subsystems.
β’ Environmental causes.