# Manufacturing Test Analytics
URL: /tofupilot-analytics
Monitor your test's first-pass yield (FPY) and capability index (Cpk) at the measurement level using TofuPilot with OpenHTF.
With TofuPilot, monitor your tests first-pass yield (FPY), and capability index (Cpk) at the measurement level.
When you deploy your test script, it runs many times, and **issues arise**. Instruments may not connect, **limits might reject good parts**, or some phases take longer than expected. The **best way to troubleshoot** your test scripts is with a **database of test logs and analytics**, but building that adds more work when you're already managing tests, hardware, and production timelines.
We **faced these issues ourselves**, building scrappy analytics while scaling drone manufacturing. We saw many other teams doing the same. So, we built TofuPilot a **plug-and-play analytics platform for hardware test engineers**, on solid web infrastructure, available on cloud or on-premise, and with phase-level test analytics.
Discover TofuPilot
It's OpenHTF-compatible and integrates in 5 minutes. And let us know what you think on Discord!
To integrate TofuPilot, install the open-source client:
Add it to your test like this:
`upload()` is a standard output callback and reads `TOFUPILOT_API_KEY` from the environment. `procedure_id` and `part_number` are ordinary test metadata keyword arguments.
Each time you run a test, it's automatically uploaded to your workspace.
After uploading your runs, you can visualize the phases and measurements for each test run instead of having raw JSON data. This view helps you understand what happened during each test execution, including measurement values, limits, units, but also logger output, attachments, and Device Under Test information.
Learn more in the TofuPilot Docs
Beyond individual test visualization, TofuPilot provides analytics across multiple runs to identify patterns and trends. The most commonly used metric in industrial test monitoring is **First-pass yield** (FPY). It measures the percentage of parts that pass without rework and helps assess the efficiency of your test procedures.
Discover more in the TofuPilot Docs
TofuPilot provides analytics at the individual phase and measurement level for deeper insights into test performance. The Process Capability Index (Cpk) measures **how well measurements stay within their limits**. It's calculated for each individual measurement with numerical values and at least one lower or upper limit. This helps you identify which specific measurements are driving test failures.
Discover more in the TofuPilot Docs