An application development system for developing an application with application components is described. The system application development includes a modeling tool. The modeling tool imports the application components in a comparable component definition format, and defines a data relation between data, screens, and operations embodied in the application components in an application model. The application model has a static structural characteristic, a dynamic behavioral characteristic and an implementation characteristic. The static structural characteristic defines parts of the application. The dynamic behavioral characteristic defines responsiveness of the application to events or actions, and the implementation characteristic describes elements required for deploying the application. The modeling tool updates the cross-component mapping. The modeling tool further includes a mapping analyzer for analyzing message components and data components in the application components, and generating a cross-component mapping.