I will sencha MVC Architecture

Sencha provides one of the most popular frameworks to build RIA applications (using ExtJS) and HTML5 compliant mobile applications (using Sencha Touch). Creating an application is always easy, but creating a highly maintainable and scalable application is challenging without having solid architectural practices in place. “Sencha MVC Architecture” covers all the aspects, from project design to building and packaging, creating and delivering an enterprise-class application by applying Sencha MVC Architecture. Every concept is supported with a functional code, which you can quickly try out and also understand how it works.