They are a bar code printer , a label for item tracking, scanning equipment for data collection and an external database for bar code data capture and relay. The bar code printer provides the first vital component part in tracking information by generating the bar code label utilized in item tracking. Component 2 - The Bar Code Label Automatic identification is the essential first step in a barcode system which is accomplished by attaching a barcode label to an item for tracking. An item label can contain any combination of text, graphic or bar code information, yet it is the bar code symbology that facilitates and promotes the item tracking process. The data collection phase occurs through the use of scanners that instantly and accurately read, capture and decipher the information contained in the barcode label.
Scanners read information much faster and more reliably than humans can write or type.
Thus, significantly reducing the rate or likelihood of error. Scanners also act as decoders deciphering the information contained in the barcode and converting it into a signal that can be understood by a computer system attached to a scanner. Print quality is of utmost importance when printing bar codes so that the scanner has the ability to read them. Poor quality bar codes that do not scan can result in large fines or penalties that can deteriorate customer relations between a vendor and supplier. The fourth and final component to establishing a bar code system is the external database.