Date Added: Jun 2011
This paper mainly depicts the conceptual overview of vertical integration, semantic interoperability architecture such as Educational Sector Architectural Framework (ESAF) for New Zealand government and different interoperability framework solution for digital government. In this paper, the authors try to develop a secure information sharing approach for digital government to improve home land security. This approach is a role and cooperation based approach for security personnel of different government departments. In order to run any successful digital government of any country in the world, it is necessary to interact with their citizen and to share secure information via different network among the citizen or other government.