Bar coding can look confusing on the surface -- an array of lines and spaces that appear indecipherable but the very basics of bar code are extremely simple. It's all about the width of the black bar and the width of the white space. These varying sizes can be put together in groups to represent a sum of information that will relate to a specific character in the character set. The bar code scanner or reader passes a laser light across the code. There are a number of different kinds of bar codes. While the Universal Product Code is prevalent in retailing, there are a number of other codes used throughout manufacturing for other purposes such as tracking and quality control. Here are the five steps in bar code applications: 1. Determine the type of bar code. 2. Determine the application method. 3. Determine how fast your process is. 4. Establish your data strategy. 5. Do a little testing.
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