PFMEA Control Gap: Control Plan Tools That Fail During Transition The PFMEA (Process Failure Mode and Effects Analysis) control gap is one of the most common root causes of quality failures in manufacturing. It occurs when the Process Failure Mode and Effects Analysis (PFMEA) indicates that risks are controlled, but actual shop-floor execution indicates otherwise. […]
What PPAP Is Trying To Achieve (And Often Does) At its best, PPAP in manufacturing is a structured way to prove that a supplier’s process can repeatedly produce parts that meet all customer and regulatory requirements. The AIAG PPAP intent aligns with Ioan Feloniuk’s framing: demonstrate that design intent, process capability, and evidence are in place […]
APQP Testing Limitations in Automotive and Manufacturing Quality Advanced Product Quality Planning promises robust launches, but APQP testing limitations often emerge when teams equate “meets spec” with “fit for use.” APQP testing limitations become most evident when products pass all defined tests yet still fail in customer applications, field use, or long-term durability. The root cause […]
When the Margin Is Unknown, Control Becomes Reaction Not everything can be turned into a process. This is especially true in early product development, where learning, discovery, and iteration dominate. However, when ambiguity persists beyond its appropriate stage—especially around dimensions, tolerances, and margins—organizations unintentionally transfer risk downstream. The image illustrates a simple truth: when the […]