Abstract: A method and a system have been presented to automate the development and customization of one or more business applications. The system is disclosed in the form of a framework, such as a Rapid Design Toolkit (RDT). Various examples of business applications may include Order Management, Inventory Management, Enterprise Resource Planning (ERP), and Supply Chain Management (SCM). The business applications help in improving operational efficiency and effectiveness of an enterprise. The method described above includes identifying one or more business requirements of a business application by an enterprise. Thereafter, logic is designed using one or more predefined reusable components based on the business requirements. The predefined reusable components are pretested. Thereafter, the designed logic is executed to automatically develop and/or customize the business application. The business application is developed and/or customized visually through configurations.