One of the targets of the Greek Government in 2007 was to develop a Governmental Portal of Public Administration for informing citizens, but also for the provisioning of integrated and secure e-Government Services, through a central electronic point called “National Portal Ermis”. The “National Portal Ermis”, is not substituting the existing governmental portals of the Public Authorities, but it gives added value to the e-services of each organization as it works as a ‘router’ that makes easier and simpler the access to the end service points.
For this purpose a large number of processes of the Public sector were selected, organized and modelled according to a new framework called Greek e-Government Interoperability Framework(http://www.e-gif.gov.gr). The main goal of this framework is to define a set of rules and prototypes of interoperability in organization, semantic and technological level in order to exchange data between information systems of the public sector.
Following a top-down approach the Greek Public Administrations developed information systems that respect rules, specifications and prototypes that allowed them to extend their operation by establishing new G2G and G2C infrastructures and services. Moreover the ICT market and specialists had the opportunity to follow strategies and solutions that will be compatible and can ensure the cooperation between heterogeneous systems.
The main lesson learned is that following these directives, the public sector gradually matured and the ICT community adopted a clear vision of designing and developing e-Government services.