Framework Architect, Development. This system has various modules like shipping, courier, rate calculator, Items , Inventory, warehouse, customer etc. The whole system is based on the Silverlight framework, which follows the MVVM pattern. It provides operation and control level access rights implementation, dynamic navigation menu generation, dynamic module wise .xap loading and extraction for assembly and user control loading, runtime service connection using channel factory wrapper class, basic crud operations, validation, search functionality, runtime theme changing functionality. In this system, using Active Directory, it authenticates user credentials. As per domain and assigned groups, the system decides user access rights for screens and controls.