Payment Device Display Modes for Clerk and Customer Clarity
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Solution Overview
Problem
Conventional payment devices in self-service systems display operational status information intended for store clerks, which can confuse customers and hinder their usage experience.
Innovation Solution
A payment device with a controller that switches display modes based on user roles, showing detailed operational information to store clerks and simplified status to customers, using an input device to select modes and controlling the display accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the payment device displays detailed operational status information intended for store clerks, then the store clerk can efficiently manage the payment device, but the customer may be confused by the displayed information
Solution Approach 1:
The display information is segmented into different types based on the user role. The controller identifies whether the user is a store clerk or customer and displays corresponding information: detailed operational status for clerks, simplified payment information for customers. This segmentation resolves the contradiction by showing that different users receive different levels of detail appropriate to their needs.
Solution Approach 2:
The display device presents different quality levels of information locally for different user types. Store clerks receive comprehensive detailed information about payment device status, while customers receive simplified information relevant to their payment transactions. This local quality differentiation ensures each user type receives information tailored to their specific needs without confusion.
2Object-affected harmful factors
If the payment device displays simplified information for customers, then the customer usage experience is improved, but the store clerk cannot efficiently manage the payment device
Solution Approach 1:
The system segments information display based on user identification. The controller determines the user role and selectively displays detailed operational status information when a store clerk is detected, while displaying simplified information for customers. This ensures both user types receive appropriately tailored information without compromise.
Solution Approach 2:
The display content dynamically changes based on the detected user role. The controller continuously monitors user identification and adjusts the display output in real-time, switching between detailed clerk information and simplified customer information as needed. This dynamic adaptation resolves the contradiction by making the display flexible rather than static.
3Reliability
If the payment device displays detailed operational status information continuously, then the store clerk can monitor the payment device, but the customer sees unnecessary complexity during payment transactions
Solution Approach 1:
The display information is segmented by user role rather than displayed continuously and uniformly. The controller identifies the user and presents only the relevant segment of information: detailed status monitoring information for clerks, simplified payment information for customers. This segmentation eliminates unnecessary complexity for customers while maintaining reliable monitoring capability for clerks.
Solution Approach 2:
The controller acts as an intermediary between the payment device status system and the display device. It filters and selects which status information is presented to which user type, mediating between the need for comprehensive monitoring and the need for simple customer-facing display. This intermediary function resolves the contradiction by intelligently filtering information flow.
Data Source
AI summary
A payment device connectable to a point-of-sale (POS) terminal installed in a store includes a slot through which bills or coins can be inserted, a plurality of storage units in which the bills or coins can be stored for each denomination, a display device, and a controller configured to, in response to a command received from the POS terminal, perform a payment process to receive and dispense bills and coins. The controller is further configured to: switch between first and second modes, and between payment processes, control the display device to display: in the first mode, first information for a store clerk of the store, the first information indicating a detail of a status of the payment device, and in the second mode, second information for a customer of the store without the detail of the status of the payment device.