Ways to increase the efficiency of information systems

Fractions of seconds can change a person's life or a company's destiny as we live in a dynamic world, in a permanent move. Thus, the need of being informed, regardless of place or time, is very great. Therefore, the need for efficient information systems is very high. The efficiency can be achieved by using various methods/ techniques and technologies "to build" the information system. The ones, we will present in our paper, are: methods of Enterprise Application Integration (EAI): the purpose of EAI strategies is to create an integrated, complex, coherent software solution, beyond any geographical, social, national or heterogeneous business types limits; techniques of databases optimization: in order to improve the performance of database processing can be applied several optimization techniques; and "in terms" of technology, we will consider: mobile databases, spatial databases and data warehouses (using Oracle Warehouse Builder).