
Serial Numbers vs Lot Numbers in Part Traceability
Serial numbers identify individual items; lot numbers identify a group. Choosing the right level of identity determines how useful the manufacturing record will be later.
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50 practical guides to choosing a process, specifying a mark and preparing parts for production.

Serial numbers identify individual items; lot numbers identify a group. Choosing the right level of identity determines how useful the manufacturing record will be later.
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A Data Matrix symbol is a carrier for information. Start with the required data and application rules before selecting its size or placing it on a drawing.
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A successful scan shows that one reader decoded a symbol under particular conditions. Verification evaluates defined characteristics using an agreed method.
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Aerospace identification is a drawing and contract requirement. The process should be selected from the actual part requirements, not from the industry label alone.
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Medical device identification requires coordination between the device labeler, quality team and marking supplier. A visible code alone does not establish compliance.
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Clear tool and fixture identification helps a shop connect physical equipment to setup instructions, maintenance records and ownership information.
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