Optimize the design of the operation interface
The operation interface of Self-Service Cash Register should be concise, clear and easy to understand. First, in terms of screen layout, each function button should be large enough and reasonably spaced to avoid users making mistakes due to accidental touches. For example, set important buttons such as "checkout" and "cancel" in obvious and different areas, and highlight them with different colors or icons so that users can clearly distinguish them. The prompts in the product scanning area should be clear, telling users how to correctly place the product to ensure that the barcode is accurately scanned. At the same time, for some special operations, such as coupon use and member login, there should be a special guidance interface, using simple and easy-to-understand text and graphics to guide users step by step to complete, reducing mistakes caused by complex operations.
Provide clear voice and visual prompts
During the user operation process, Self-Service Cash Register should provide sufficient voice and visual prompts. When users scan products, the product name and price are prompted by voice, allowing users to confirm immediately. If there is a problem with the scan, such as the barcode cannot be recognized, the voice prompt can tell the user how to check whether the barcode is clear, rescan, etc. In terms of visual prompts, there should be obvious icons or text prompts for successful or failed operations. For example, when an item is successfully added to the shopping list, a green check mark icon can flash briefly on the screen; if an error occurs, a red cross and a corresponding error message, such as "This item needs to be weighed, please go to the service desk," can be displayed to help users quickly understand the problem.
Strengthen user training and guidance
Merchants can arrange staff to provide on-site guidance near the Self-Service Cash Register, especially when the Self-Service Cash Register is just put into use or when there is a large flow of customers. Staff can demonstrate the correct operation process to users and answer their questions. In addition, an operation guide manual can be made or an operation flow chart can be posted next to the Self-Service Cash Register, showing every step from product scanning, payment selection to completion of settlement in a graphic and textual manner. For some new functions or error-prone links, they can be highlighted and explained so that users have a clear understanding before use and reduce the possibility of errors.
Improve the system's fault tolerance and error correction functions
The system of the Self-Service Cash Register should have certain fault tolerance and error correction capabilities. For example, when a user accidentally scans a product repeatedly, the system can automatically identify and prompt the user, or automatically remove the price of the duplicate product at the time of settlement. If a user makes an operational error during the payment process, such as entering the wrong payment password, the system should allow the user to re-enter the password within a certain number of times instead of directly canceling the transaction. At the same time, the system can record some common error types and optimize related functions in subsequent software updates to continuously improve the stability and usability of the system and reduce the user error rate.
