POS Peripheral Diagnostics via Embedded iFrame Interface
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Solution Overview
Problem
Conventional point of sale systems inefficiently interact with peripheral devices by requiring users to switch between a root web application and a separate diagnostics application, wasting computing resources and causing user inconvenience.
Innovation Solution
Integrate a diagnostics web application within a dedicated iFrame of the root web application, allowing users to troubleshoot peripheral device errors without leaving the main interface, using separate communication channels for security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate diagnostics application is used to interact with peripheral devices, then the system can provide dedicated diagnostic functionality, but users must switch between applications which wastes time and computing resources
Solution Approach 1:
The patent merges the diagnostics application with the root web application by embedding it within the same browser session using an iframe. This allows users to access diagnostic functionality without switching between separate applications, eliminating the time loss associated with application switching while maintaining dedicated diagnostic capabilities.
2Reliability
If a separate diagnostics application is used to interact with peripheral devices, then the system can provide dedicated diagnostic functionality, but computing resources are wasted due to repeated stopping and restarting
Solution Approach 1:
The patent combines the diagnostics application and root web application within the same browser session, allowing both to coexist without requiring the root application to be stopped and restarted. This eliminates the computational overhead of application lifecycle management while preserving dedicated diagnostic functionality.
3Adaptability or versatility
If a separate diagnostics application is used, then peripheral device interaction is possible, but the user interface becomes more complex and less integrated
Solution Approach 1:
The patent implements a nested structure where the diagnostics application is embedded within an iframe that is contained within the root web application's browser session. This nesting approach allows the diagnostics interface to be accessed seamlessly from the main application without requiring separate windows or tabs, reducing overall interface complexity while maintaining peripheral device interaction capabilities.
Data Source
AI summary
A method for running a diagnostics web application for a peripheral device within a root web application running on a point of sale system operatively coupled to the peripheral device includes: loading, by the root web application, the diagnostics web application into a first iFrame of the root web application and loading an interface web application for the peripheral device into a second iFrame of the root web application; issuing, by the root web application, a command to the peripheral device using the interface web application; responsive to the command, receiving, at the interface web application, data from the peripheral device indicating occurrence of an error; and causing, by the root web application, a webpage of the diagnostics web application to display within a webpage of the root web application based on the data indicating occurrence of the error.