Measurement System Analysis (MSA)

A measurement systems analysis (MSA) is a thorough assessment of a measurement process, and typically includes a specially designed experiment that seeks to identify the components of variation in that measurement process. Just as processes that...

Key Process Input Variable (KPIV)

A key process input variable (KPIV) is a process input that provides a significant impact on the output variation of a process or a system or on the key process output variable (KPOV) of a product. This means that the KPOV is determined by the KPIV; so, if the KPIV is...

Scope Creep

Project Scope creep (sometimes known as “requirement creep” or even “feature creep”) refers to how a project’s requirements tend to increase over a project lifecycle, e.g. what once started out as a single deliverable becomes five. Or a product that began with three...

Voice of the Customer (VOC)

Voice of the customer (VOC) is a term used in business and Information Technology (through ITIL, for example) to describe the in-depth process of capturing customer’s expectations, preferences and aversions. Specifically, the Voice of the Customer is...

Subject Matter Expert

A subject-matter expert (SME) is a person who is an authority in a particular area or topic. The term is used when developing materials about a topic (a book, an examination, a manual, etc.), and expertise on the topic is needed by the personnel...