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  • Dave Nelson thinks this is interesting:

Enhancements fall into three categories: features that add some minor function (farkles), enhancements to existing features that improve quality (enhancements), and upgrades that add completely new features that improve quality as well as usability, maintainability, and in some cases reliability (upgrades).

From

Cover of Maintaining and Troubleshooting Your 3D Printer

Note

Farkles, Enhancements, and Upgrades