The DUT failure history is the complete record of all defects, anomalous behaviors, and test statuses that a given tested product has exhibited throughout its lifecycle — from initial testing to possible field returns (RMA). This history is essential for the identification of recurring failures, technical traceability, continuous improvement, and
CAPA (from the English Corrective and Preventive Action) is a structured process aimed at identifying, correcting, and preventing the recurrence of problems or non-conformities in quality, production, or testing systems. CAPA is part of systems like ISO 9001, IATF 16949, FDA 21 CFR and other industrial standards, being essential to
The 5 Whys technique is a simple and powerful root cause analysis tool, which involves asking “why?” repeatedly (five times or more) to identify the real origin of a problem. The goal is to go beyond the symptoms and find the technical and procedural root cause, enabling lasting corrective actions.
The 8D (Eight Disciplines) is a systematic approach to solving complex problems, especially effective for recurring or critical non-conformities in industrial environments. Originally developed by Ford, 8D is now a global reference for structured corrective actions, with traceability and organizational learning. The 8D goes beyond just correcting the problem: it
The Ishikawa Diagram, also known as the fishbone diagram or cause-and-effect diagram, is a visual tool used to identify, organize, and analyze the possible causes of a problem. Created by Kaoru Ishikawa in the 1960s, the method is widely used in quality, engineering, and continuous improvement to investigate production failures,
Kaizen is a philosophy of Japanese origin that literally means "change for the better". In the industrial context, it is a systematic approach to continuous improvement, involving all employees — from the operator to the engineer — to eliminate waste, improve processes, and enhance quality. In the industrial testing environment,