The development of advanced software implementing the Grid approach facilitated creation of the computational infrastructures that integrate spatially distributed (on a global scale) computer installations. Resources of such infrastructures are shared by large collectives of specialists in different scientific areas.
The paper presents the analysis of the grid platforms - the most complete form of contemporary grid software. The main issues discussed are: forms of computing with distributed computer, file and information resources; program methods of resource integration; support technologies for grid operation and virtual organizations.
Results of the research reveal, that the existing grid program platforms can serve as a basis for the distributed applications of mass character, capable of comprehensive maintenance of professional activities in various spheres of business, production and management.
grid, gLite, virtual organization, resource virtualization, global file system, distributed data base