Automated POS Terminal Testing via Handheld Scanner Image Analysis
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Solution Overview
Problem
Testing point-of-sale (POS) terminals and associated peripherals is time-consuming and costly due to the complexity of these systems and the variety of transaction types, leading to potential errors that can cause delays and customer frustration.
Innovation Solution
An automated testing system that includes a handheld scanner with an electronic switch, a control circuit, and display devices to simulate transactions, analyze images, and verify the accuracy of transaction records, allowing for the automated testing of POS terminals and peripherals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual testing of POS terminals is performed to ensure proper functioning, then reliability of transaction processing is improved, but loss of time and productivity deteriorate due to time-consuming and costly testing processes
Solution Approach 1:
The testing system performs self-testing of POS terminals through automated execution of test cases. The system autonomously initiates transactions, captures responses, and validates results without requiring manual operator intervention for each test execution, thereby reducing testing time while maintaining reliability.
Solution Approach 2:
Manual testing operations are replaced with an automated computer-based testing system that executes test cases programmatically. The system substitutes human operators with automated software that can rapidly execute multiple transaction types and validate results, significantly reducing testing time and costs.
2Reliability
If comprehensive testing of multiple transaction types is performed to ensure POS terminal functionality, then reliability is improved, but device complexity increases due to the number of different transaction types and requirements
Solution Approach 1:
The testing system is designed as a universal platform capable of executing multiple transaction types through a single integrated system. The test case execution module can handle various transaction scenarios (sales, returns, exchanges, etc.) using the same hardware and software infrastructure, avoiding the need for separate testing systems for each transaction type.
Solution Approach 2:
The testing system divides complex testing tasks into discrete test cases that can be independently executed and managed. Each test case represents a specific transaction type or scenario, allowing the system to systematically cover multiple transaction types without overwhelming complexity. Test cases can be selected and executed based on specific testing requirements.
3Productivity
If automated testing is implemented to reduce testing time and costs, then productivity is improved, but device complexity increases due to the need for specialized testing equipment and control circuits
Solution Approach 1:
The testing system merges multiple testing functions into a single integrated apparatus. The handheld scanner, display device, control circuit, and image analysis capabilities are combined in one system, eliminating the need for multiple separate testing devices. This consolidation improves productivity while managing complexity through integration rather than proliferation of components.
Solution Approach 2:
The system uses image capture and analysis to create a digital representation of the POS terminal display for validation. Instead of direct electrical or physical interfacing with the display, the system captures an image and analyzes it computationally, simplifying the physical interface requirements while maintaining automated testing capabilities.
Data Source
AI summary
In some embodiments, apparatuses and methods are provided herein useful to automating testing of transactions at a point-of-sale (POS) terminal. In some embodiments, a system comprises a handheld scanner including an electronic switch electrically coupled to a physical trigger of the handheld scanner, wherein the handheld scanner is configured to read a product identifier, a first display device configured to present the product identifier, the POS terminal including a second display device configured to present a transaction record for a transaction, and a control circuit configured to determine a test case to execute, determine the product identifier, cause presentation of the product identifier, transmit a signal that mimics a pull of the trigger, capture, from the second display device, an image including at least a portion of the transaction record, and analyze the image to determine whether the transaction record includes a record associated with the product identifier.