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The content of a barcode and the content of a GUID are distinctly different, and how they are used is also different. That said, there are possible contradictions. '''In general''', | The content of a barcode and the content of a GUID are distinctly different, and how they are used is also different. That said, there are possible contradictions. '''In general''', | ||
*a GUID is part the digital specimen record and does not have to appear on the specimen. | *a GUID is part the digital specimen record and does not have to appear on the specimen. | ||
*a GUID could be the same value as the barcode, but they are usually created from different domains | *a GUID could be the same value as the barcode, but they are usually created from different domains. For example, if a GUID is a URI or UUID is a single, contiguous string, whereas a barcode with possible textual satellites, for example, 'Florida Museum of Natural History x1224355y', is not a contiguous string. | ||
*a GUID, while it is also targeted at machine processing, | *a GUID, while it is also targeted at machine processing, is possible for a human to read. | ||
*a barcode is expected to be attached in some way to the specimen, and be encoded in a way that can be rapidly read by a special reader. | *a barcode is expected to be attached in some way to the specimen, and be encoded in a way that can be rapidly read by a special reader. | ||
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