“Digital government” (DG), “online government,” “e-government (eGvt),” and “e-governance (eG)” are widely used terms. They suggest the use of modern information and communications technology (ICT) in the governance of socio-economic systems (SES). It is widely accepted that the goal consists in increasing the performance of the governance. This can be considered in the sense of improving the services provided to citizens and organizations and also of improving the socio-economic development. There are still various points of view concerning the scope and strategy. The purpose of the present article, based on existing results and trends, is to propose a set of general requirements for the informatized governance of socio-economic systems.