Innovative, Secure and Interoperable E/M-Governmental Invoicing

Research into initiatives worldwide shows that although some of the legal and organizational barriers for the adoption of new technologies in e/m-government have been lifted, there are still not many implementations of actual e/m-government services that have been designed based on a common and systematic approach. The most prevailing requirements for e/m-government services, interoperability and security, pose major challenges to e/m-government architects and it is now being slowly understood that Web Services in combination with PKIs may provide the necessary solutions. In this context, this paper presents an innovative e/m-government service based on these technologies, focusing basically on their security and interoperability aspects. The goal of the paper is to demonstrate the service´s specifications and use cases so that it may act as example for further research and development.