Lightning Experience is a modern, upgraded web technology framework that sits at the heart of the Salesforce CRM application. With the use of the Lightning Experience framework, Salesforce provides functionality that exploits modern web-based features and provides a richer user experience.
The user interface for Lightning Experience is designed to work with both desktop and mobile, and uses modern user interface technologies that are optimized for speed. This means that there are new Salesforce CRM features that Salesforce has developed that are not supported and will not work within the Classic user interface themes.
Ultimately, Salesforce Lightning Experience has been designed for future scalability with its user interface and redesigned architecture. Lightning Experience should not be considered as simply a new look and feel for Salesforce...
