Defining CTQ Outputs: A Key Step in the Design Process

 

After starting a project and gathering VOC data, it is time to define the critical-to-quality outputs. To prioritze their actions during this process, practitioners may use a quality function deployment (QFD), also known as the house of quality.

By J. DeLayne Stroud
After starting a project and gathering the voice of the customer (VOC), it is time to define the critical-to-quality outputs (CTQs).
CTQs are the key measurable characteristics of a product or process whose performance standards or specification limits must be met in order to satisfy the customer. These outputs represent the product or service characteristics defined by the customer (internal or external). They may include the upper and lower specification limits or any other factors related to the product or service. Typically, a CTQ must be interpreted from a qualitative customer statement to an actionable, quantitative business specification. Establishing CTQs is vital for a company to meet customer needs and keep up with the competition.

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