Experiences and issues in the realization of e-government services

Certification of the executed service is a critical issue for an e-government infrastructure. In fact, given the legal value that is often attached to data managed and exchanged by public administrations, being able to document the actual execution of e-services is of the utmost importance. This is made more complex in cases, as often happens in the public administration sector, where e-services are based on legacy systems managed by autonomous and independent organizations. In this paper we discuss, starting from real-life e-government systems developed in Italy, the introduction, within the standard three tier architecture for e-services, of new control components, based on efficient algorithmic techniques, providing solutions for this issue