Environmental Engineering Reference
In-Depth Information
Figure 1.4
Example of COI policy
they move through the supply chain. The big difference between the two
automatic data capture technologies is that bar coding is a line-of-sight
technology. In other words, a scanner has to “see” the bar code to read
it, which means people usually have to orient the bar code toward a
scanner for it to be read. RFID tags can be read as long as they are
within the range of a reader, even if there is no line of sight. Bar codes
have other shortcomings, as well. If a label is ripped, soiled, or falls off,
there is no way to scan the item. Also, standard bar codes identify only
the manufacturer and product, not the unique item. The bar code on one
gallon of 2 percent milk is the same as on every other gallon of the
same brand, making it impossible to identify which one might pass its
expiration date first. RFID can identify items individually.
5. Customer requirements and expectations regarding quantity, quality, and
on-time delivery should be met without exception.
 
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