Mistake proofing is used in product, process, and service design and development as well as in ongoing operations and improvement applications. The goal with mistake-proofing is to find and correct mistakes, errors, or omissions as close to the source as possible, when the mistakes cost less to correct than if found later.
This is the first of a series of articles on conducting a root cause investigation. The model applies to a Corrective Action/ Preventive Action or CAPA investigation, as well as any other type of investigation. In this premier article, we describe a model for conducting a science-based, systematic investigation leaving future articles to delve into more detail as the individual steps are explored, specific tools are highlighted, and example investigations are reviewed.