The Problem The customer has specimen trays that contain 96 test tubes per tray. Each tube has a very small serialized 2D barcode on the bottom of it. The tubes are initially mapped in a specific way in their software system before the user goes into the field to collect their specimens. The customer must ensure they know the exact location of each tube within the tray. While they are obtaining specimen samples in the field they write down the tube location and place it back into the tray. On some occasions the tube may accidentally get positions swapped within the tray, thus the sample numbers are incorrect and creates a test that is no longer valid and cannot be used. If the error is not caught before being validated the custo

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