What is a Point of Sale System?

The point of sale system (Point Of Sails) has the characteristics of direct and immediate account entry and strong real-time processing capabilities, which solves the problems of automatic product identification and automatic payment settlement of transactions. ^[1]

The point-of-sale system provides transaction payment authorization. A payment request can be sent from a mobile device to the point of sale system. The mobile device owner may request payment details for the transaction from a third party device, such as a parent's computer. The point-of-sale system may send a permission request to a third-party device, or the mobile device may send a permission request to a third-party device. received

The requirements of the POS system have the following characteristics:

1. Less investment. That is, the software and hardware investment of the system cannot exceed its affordability.

2. Good reliability. That is, when designing a POS system, consider the worst case: in case the network or

The details of each paradigm are as follows:

Front desk: It is mainly to complete the functions of sales, collection, return, and cancellation of transactions. The payee is controlled by the confidentiality authority, and the foreman has the authority to return and cancel the transaction, and requires the management to enter the corresponding password.

The functions of each module in the background are as follows:

File management: Including product files, payee files, sales method files, salesperson files, product category files, and supplier files.

Inventory management: maintenance of commodity libraries (including maintenance of commodity libraries, price change orders, vendor libraries, product type libraries, etc.), inventory management, return management, transfer management, loss scrap, inventory, and inventory query and modification (warehouse orders, transfers) (Inquiry and modification of orders, scrap orders, disk profit and loss orders, etc.), inventory query (by in-store code, by factory code, by inventory, by business method) and other queries. Financial management: management of detailed accounts, accounts receivable, accounts payable, general ledger and ledger. Business management analysis: daily sales report, weekly best-selling product report, monthly best-selling and slow-selling product report.