What is Critical To Quality in Six Sigma (CTQ) | Critical to Quality (CTQ) | Explained with example

Critical to quality?is an attribute of a part, assembly, sub-assembly, product, or process that is literally?critical to quality?or more precisely, has a direct and significant impact on its actual or perceived?quality

The internal critical quality parameters that meet the needs and wants of customers are known as?Critical-to-Quality (CTQ)?outputs. They may identify needs or concerns that are important to customers, such as tires for their vehicles that are not noisy on the road. Those need are known as?Critical-to-Customer (CTC)?outputs. In the same example, a CTQ would be the items important to the process of creating the tire and the quality and function of the tire that help customers get their preferred end result (tires that are not noisy).

Companies use something called?trees?to help draw lines between the various CTQ and CTC components. A tree is a diagram-type tool used to connect the dots between customers' needs and specific, measurable performance requirements. To achieve the customers' need of less noisy tires, a CTQ component might be a new type of tire material or a new design that lessens the noise that the tires make on the road.

A CTQ is a measurable characteristic that helps a business achieve a positive outcome from satisfied customers. Both CTQs and CTCs are part of a quality program known as?Six Sigma, which uses data and methodology to eliminate defects in any process, from manufacturing to transactional and from product to service.