Besides getting a properly itemized receipt, this system has a added advantages that it can be linked to the-central-warehouse, in the case of retail chain storages, allowing a much more efficient stock or inventory controls and reduced ordering times. This means that items can be restocked before they run out.
Organizations and Companies with diverse markets and goals now use a bar code system in order to keep a better control of (ticket) sales, transport tracking and customer behavior.
In high volume enterprises, such as postal systems, bar coding has enabled domestic and international postal services to automate their sorting and routing demands to a high degree by placing bar code labels on each letter or parcel. This label is read by high speed readers and the package is automatically distributed into zoning bins for further transport.
Transport companies use bar code systems to keep track of where goods are - in the warehouse, waiting to be shipped, in a container on a shipping vessel, or at a destination sorting office for final delivery. Linked to a central database you can look up where your document or parcel is via the internet, for example.
Concert halls, cinemas and movie theaters, sporting clubs and events, and theme parks use bar coding on their tickets to keep track of visitor behavior and purchases, for example. Libraries use bar codes to keep track of books. And so on.