In this paper we describe CNR's experience in migrating its central administration information systems from proprietary platforms to JEE. In particular, we will show that in our case this open standard allowed for smooth migration, seamless integration with legacy applications and significant cost savings as regards software licenses and technical training.
Our poster shows how J2EE technologies, well-known design patterns and standard methodologies have successfully been applied in building a complete, robust and well-documented accounting application. Our experience demonstrates that those three factors allow for easy maintenance and reuse of components. The application, whose development was initially… (More)