Dual Touchscreen Self-Service Terminal Privacy
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Solution Overview
Problem
Self-service terminals, such as ATMs, compromise customer privacy and security due to the use of touch-sensitive panels and large displays, as sensitive information like PINs can be easily observed by third parties.
Innovation Solution
Implementing two touch-sensitive units in a self-service terminal, where one unit is configured for enhanced privacy, allowing customers to enter transaction details in a more private manner by using a second display oriented differently and potentially smaller than the primary display, which can be used instead of a traditional PIN pad, and equipped with a short-range radio transceiver for transactions like phone top-ups.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a large display and touch sensitive panel are used to enhance customer experience, then ease of operation is improved, but customer privacy and security are compromised
Solution Approach 1:
The terminal is divided into two distinct touch sensitive units: a first touch sensitive unit with a large display for general interaction, and a second touch sensitive unit with enhanced privacy features for sensitive operations. This segmentation allows each unit to be optimized for its specific function, resolving the contradiction between ease of operation and privacy protection.
Solution Approach 2:
The second touch sensitive unit is provided with specific local qualities including an opaque or translucent cover that can be positioned over the display, and a different orientation (generally level vs upright). These localized privacy enhancements are applied only where needed for sensitive transactions, maintaining overall ease of operation while protecting privacy in critical areas.
2Object-affected harmful factors
If a second touch sensitive unit with different configuration is added for privacy, then privacy and security are improved, but device complexity increases
Solution Approach 1:
The second touch sensitive unit is designed to perform multiple functions: it serves as the primary interface for sensitive transactions requiring privacy, can display supplementary information, and may handle specific transaction types exclusively. This multi-functionality justifies the additional complexity by providing versatile privacy-protected operations.
Solution Approach 2:
The processor acts as an intermediary that coordinates between the two touch sensitive units, managing which unit displays which content based on the transaction type. This centralized control simplifies the overall system architecture despite the presence of two units, as the processor intelligently routes information to the appropriate display.
Data Source
AI summary
A self-service terminal is described. The terminal includes first and second touch sensitive units. Each of these touch sensitive units includes a display and a touch sensitive panel overlying the display. The second customer display is configured differently to the first customer display. The terminal also includes a processor operable to present (i) a screen comprising a plurality of different selectable options to a customer on the first customer display, and (ii) a screen associated with a selected selectable option on the second customer display, so that the customer can use the second touch sensitive unit to enter transaction details in a more private manner than by using the first touch sensitive unit.