field test

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In the context of e-book production, to test an e-book file by loading and viewing it on actual devices.

The purpose of field testing is to catch unanticipated problems that cannot be found through QA and validation.

Field testing is necessary because some devices claim to support a standard, but in reality only provide partial support, or have bugs or eccentricities that can affect the final result.

For example, there is nothing in the EPUB standard that dictates the size or shape of cover images, but many e-readers place their own limitations on these images.

Also see: QA, validation.