Reliability in Product and Process Development

Integrate reliability engineering techniques with other development activities, concurrent engineering, corporate improvement initiatives such as lean and six sigma methodologies, and emerging technologies. — ASQ CRE BOK 2009

Describe how Six Sigma principles support reliability engineering. — ASQ CRE BOK 2018 (concepts of concurrent engineering, corporate improvements and lean removed from BOK)

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Determining Customer Reliability Requirements

Determining What Customers Really Want Concerning Reliability

Customers want the benefits created by your product. They want the time savings, the reduced yield loss, they want simplicity, coolness, speed, etc.

Customers buy your product to solve a problem, they do not buy it to simply enjoy the features. The features have to do something of value. They have to provide a benefit.

If your product fails, the feature doesn’t work. Customers do not realize the benefit they expected.

In short, your customer wants your product to work as expected. When asked a customer will tell you they do not want to have product failures. [Read more…]

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Using Reliability Goals to Set Requirements

Customers of your product would like the particular one they have to work. To work over time.

If a product meets the customer’s expectation by working as long or longer than they expected it to do so, then they may consider your product reliable.

We use reliability goals to discuss the customer’s reliability expectations. It is the establishment of requirements that converts the customer expectations to development and production obligations. [Read more…]

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Reliability as Part of Every Decision

Concurrent engineering is a common approach that pairs the development of the product design and it’s supporting manufacturing processes through the development process.

Design engineers may require the creation of new manufacturing processes to achieve specific material properties, component performance, or mechanical, electrical or software tolerances. [Read more…]

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Reliability in Product and Process Development

A product or system’s actual reliability performance is a function of the design, assembly, and use.

Decisions made during design predominately create the inherent reliability capability performance.

The selected components, manufacturing, transportation and installation all can add variability and errors to the product, often reducing the actual reliability performance.

The use conditions and maintenance add another layer of variability, again reducing reliability capability. [Read more…]