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Technologies:
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Barcode Since their invention more than
50 years ago,
barcode have been enablers
for accurate data capture, the rapid
movement of goods, and all types of
automation. Whether at the
Point-of-Sale, in a hospital, or in a
manufacturing environment these little
black and white images deliver
incredible value.
>> There
are many different
bar code symbologies,
or languages. Each symbology has its own
rules for encoding characters (e.g.,
letter, number, punctuation), printing,
decoding requirements, and error
checking.
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Barcode symbologies differ both in the
way they represent data and in the type
of data they can encode: some encode
numbers; others encode numbers, letters,
and a few punctuation characters; still
others offer encodation of the 128 or
256 ASCII character sets. Recently
unveiled symbologies include options to
encode characters in any language as
well as specialized data types.
>>
Barcode in common use are covered by
international standards. International
standards also cover print quality
measurements and equipment.
Bar code
technology standards define:
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Rules for representing data in an
optically readable format,
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Rules and techniques for printing or
marking,
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Reading and decoding techniques, and
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Rules for measuring the quality of
printed/marked
symbols
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