Quality during Design Blog

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"Dianna Deeney has launched a podcast that focuses on both the need and the 'how to' include quality and reliability in your design. Both entertaining and thoughtful, the shows are well done and worth subscribing."  

Fred Schenkelberg, founder of Accendo Reliability 

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I like talking with people in product design and the manufacturing industry. Contact me if you're interested in being interviewed and being a guest on the show.

ALT vs. HALT

Reliability engineers may suggest environmental stress tests. There are many types of tests in an RE’s toolbox. We compare two types of commonly known tests that are used for design: ALT vs. HALT. What are the important distinctions between these two methods? What value do they each bring to design engineering? And how do they…

Quality as a Strategic Asset vs. Quality as a Control

Design Specs vs. Process Control, Capability, and SPC

This fourth episode of the “QDD Versus” series focuses on concepts relating to Design for Manufacturability. Understand how design specs fit into process control, process capability, and SPC and where they typically don’t fit at all. We talk about things to think about when setting limits on design features.And, when defining controls for potential failures,…

Internal Customers vs. External Customers

We talk about customers of design information. It takes many people to realize a product design into something that can be sold and used. Those people need design information to ensure that they’re performing their tasks to produce a high-quality product, and to be able to use our product appropriately. We review who our customers…

Discrete Data vs. Continuous Data

Once we’ve decided to control something (think of our prevention and detection controls), we then need to decide how to measure it. Different controls may need different measuring requirements, which can give us discrete or continuous data. We treat these data types differently when collecting it, determining sample sizes, and analyzing it for results. Tune-in…

Prevention Controls vs. Detection Controls

Dianna compares different types of controls in product development and design engineering: Prevention Controls vs. Detection Controls. She reviews concepts, uses for controls, risk-based controls, and how to prioritize design efforts for the right controls.