--- title: When Validation Proves It Works - But Not That It’s Right description: When Validation Proves It Works - But Not That It’s Right image: https://blog.circuitcheck.com/hubfs/Architectural%20Debt%20-%202.png --- [![Circuit Check](https://blog.circuitcheck.com/hubfs/CircuitCheck_March2019/logo.svg "Circuit Check")](https://www.circuitcheck.com/) 763-694-4100 [info@circuitcheck.com](mailto:info@circuitcheck.com) - [About](https://www.circuitcheck.com/about/) - [Our History](https://www.circuitcheck.com/about/history/) - [Events](https://www.circuitcheck.com/about/events/) - [Our Team](https://www.circuitcheck.com/about/our-team/) - [Technology Partners](https://www.circuitcheck.com/about/technology-partners/) - [Careers](https://www.circuitcheck.com/about/careers/) - [Test System Engineering](https://www.circuitcheck.com/test-system-engineering/) - \[ Menu Wrap \] - [Our Process](https://www.circuitcheck.com/test-system-engineering/our-process/) - [Build to Print](https://www.circuitcheck.com/test-system-engineering/build-to-print/) - 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But Not That It’s Right Posted by [Jon Slavic](https://blog.circuitcheck.com/blog/author/jonslavic) on March 17, 2026 ![Jon Slavic](https://app.hubspot.com/settings/avatar/d41d8cd98f00b204e9800998ecf8427e) Find me on: [LinkedIn](https://www.linkedin.com/in/jslavic/) - [Tweet](https://twitter.com/share) There’s a quick way to tell if a test system’s **data architecture** is production-ready. Look for the **decoder**. Almost every development team builds one — usually an Excel workbook or small script that loads a test log file and makes it readable. ![Architectural Debt - 2](https://blog.circuitcheck.com/hs-fs/hubfs/Architectural%20Debt%20-%202.png?width=425&height=283&name=Architectural%20Debt%20-%202.png) In development it works great. One engineer. One file. One UUT. But the decoder is actually a warning sign. It means the raw output wasn’t structured for analysis in the first place. That’s fine for debugging. It’s not fine for manufacturing. Factories don’t ask single-file questions. They ask population questions: • Which channel is driving failures? • Is yield shifting with firmware revisions? • Is a test station drifting? • What does the failure Pareto look like across thousands of units? A tool designed to load **one file at a time** can’t answer those questions. Rule of thumb: **If your analysis tool loads one file at a time, it was built for debugging — not manufacturing intelligence.** [![Read the full paper here](https://no-cache.hubspot.com/cta/default/5083728/16df046c-1eab-45f4-84f2-11d880dee9ac.png)](https://cta-redirect.hubspot.com/cta/redirect/5083728/16df046c-1eab-45f4-84f2-11d880dee9ac) ### Search by Category - [Company News (58)](https://blog.circuitcheck.com/blog/tag/company-news) - [Test System Engineering (22)](https://blog.circuitcheck.com/blog/tag/test-system-engineering) - [In-Circuit Test (17)](https://blog.circuitcheck.com/blog/tag/in-circuit-test) - [Functional Test (9)](https://blog.circuitcheck.com/blog/tag/functional-test) ### Receive The Latest News Sign Up ### Ready to discuss your project?? Talk to an Experienced Test Engineer today! 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