If any significant design flaws are uncovered after initial functional testing and analysis, there may be an EVT II build once these flaws have been addressed. It’s common for engineers to be present, as this is often the first time a Manufacturer is assembling the product, and up to 40% of units can fail for a variety of reasons. EVT is generally the most critical gate review for electronic devices and unlike the EP, this build is done with the intended materials and manufacturing process. With a typical run of 20-50 units, EVT (Engineering Validation Test) is when looks-like and works-like prototypes are combined to ensure all functional requirements of the PRD (product requirement document) are being met. You’ve got a working prototype, now it’s time to start testing. The prototype should provide the team with a database of parts and model files that can be sent to the Manufacturer for an RFQ (request for quote). Often these prototypes are significantly more expensive than the expected production build because there are typically few cost optimizations at this stage. If you’re not fully immersed in this world, it can become increasingly difficult to decode what may sound like a foreign language, and while we can’t explain every abbreviation you may come across in one blog post, we’re going to start by discussing the differences between EVT, DVT and PVT, or the engineering validation process.īefore any testing can occur, the first step is a prototype build (also known as EP or Proto), which is essentially a low quantity (1-10 units) run combining engineering and design with the end goal of creating an MVP (Minimum Viable Product) the engineers can confidently claim is only a handful of iterations away from being mass production ready.
It probably won’t come as a surprise that engineers love their acronyms.
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