Which is NOT an approach of the Salesforce Mobile Software Development Kit (SDK)?

The Salesforce Mobile Software Development Kit (SDK) encompasses several approaches to mobile application development. Among these approaches—native, HTML5, and hybrid—each serves different purposes and utilizes distinct technologies.

The native approach involves building mobile applications specifically for one platform, like iOS or Android, using the native programming languages and tools available for that platform. This leads to high performance and user experience optimized for the specific device.

The HTML5 approach allows developers to create web applications that are accessible via mobile browsers, leveraging the capabilities of HTML5 to create responsive and interactive experiences on mobile devices without the need for platform-specific code.

The hybrid approach combines elements of both native and HTML5. It allows developers to write a single codebase that can run across multiple platforms, using HTML5 for the app's core functionality and native components for optimal performance and device-specific functionalities.

The term "Framework," however, does not explicitly represent an approach within the context of the Salesforce Mobile SDK. It is a broader concept that could refer to a structure that supports application development, but it does not classify the methodology of how applications are built within the Salesforce Mobile SDK. Therefore, it stands out as not being an approach of the Salesforce Mobile SDK.