The software for your retail POS system needs to be set up to segment and store data according to the classification hierarchy that matches your type of goods. That's why price-quote sites for POS
Flexible Database
A POS network plugs into a database application that stores information about your business. If you don't already have a database, you'll need to add one. Most POS software vendors work with standard database products; a vendor may support one database product or several. If he database you use to collect and analyze all your data uses an open, nonproprietary data format, you'll be able to transfer your existing business data if you decide to switch POS systems. (Some vendors offer proprietary data formats that can't easily be exported to keep you tied to their system.) Choosing a standard format also lets you use third-party reporting and data analysis products.