Web App Format Conversion for Legacy Device Compatibility
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Solution Overview
Problem
The challenge lies in ensuring compatibility and seamless operation of Web applications across different application platforms, particularly when older devices with incompatible Web browsers need to execute Web apps designed for newer platforms, leading to incompatibility issues with data formats.
Innovation Solution
An information processing system comprising a conversion unit that transforms data from one format to another, allowing it to be processed by devices with different application platforms, along with transmission units for sending and receiving operation information, enables the execution of Web apps on incompatible devices by converting and interpreting data formats.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a transition to a browser-based application platform is performed, then the device can support newer application platforms with modern Web browsers, but older devices with incompatible Web browsers cannot execute Web apps designed for newer platforms
Solution Approach 1:
The patent introduces a server as an intermediary between the Web app and older devices. The server converts the Web app into a format compatible with older devices, enabling execution without requiring firmware updates or installations on the older devices themselves. This mediator approach resolves the contradiction by maintaining adaptability to newer platforms while ensuring reliability on older devices through format conversion.
Solution Approach 2:
The patent changes the data format parameter of the Web app based on the capabilities of the target device. The server detects the device type and converts the Web app into appropriate formats (e.g., full Web app for newer devices, converted format for older devices). This parameter change enables broader adaptability while maintaining execution reliability across different device generations.
2Adaptability or versatility
If the same application program is developed and maintained for multiple types of application platforms, then compatibility across platforms is improved, but development and maintenance costs and complexity increase significantly
Solution Approach 1:
The patent segments the application into two parts: a core Web app that runs on newer platforms with full functionality, and a converted version for older platforms. The server handles the conversion logic, separating the platform-specific adaptation from the core application logic. This segmentation allows the development team to maintain a single primary codebase while providing cross-platform compatibility through automated conversion, reducing overall complexity.
Solution Approach 2:
The server is designed with universal functionality to handle multiple device types and convert Web apps to various formats. This multi-functional server can serve both newer devices that run Web apps directly and older devices that require conversion, eliminating the need for separate maintenance of platform-specific applications and reducing development burden.
Data Source
AI summary
An information processing apparatus includes a conversion unit configured to convert second format data into first format data that differs from the second format data, the first format data being processable by a device connected to the information processing apparatus via a network; a first transmission unit configured to transmit the first format data converted by the conversion unit to the device; a first reception unit configured to receive, from the device, information that represents an operation to a screen displayed, based on the first format data transmitted by the first transmission unit, in a display unit of the device; and a second transmission unit configured to transmit, to the device, an instruction to execute a process defined in the second format data, the process relating to the operation represented by the information received by the first reception unit.