Prototypes of modern city information systems (IS) must meet most closely prin-ciples formulated on the World Summit on the Information Society (WSIS) [1] and ensure effective information-technology support of processes running in re-source and socio-communicational networks in a smart city with large population. It is necessary for this purpose to develop information-technology platforms with implemented procedures of analytical processing of certain city data collections. Particularly such information-technology platform should give possibility to de-velop and utilize effective tools for analytical data processing implementation. Many of such tools and means are based on the open analytical information-technologies platforms that provide their services both on commercial and free principles. There are a lot of cases for IT projects regarding smart cities where decisions on the base of rented analytic means from well-known and widely ac-cessible information-technology platforms are seems to be well grounded. It al-lows, in own turn, for the city to save a budget on acquiring of on-premises com-puting resources, with simultaneous decreasing of general financial expenses as payments only for hosting of consumed resources and services. As a conse-quence, the choice of a fully functional efficient, affordable and easy to use ana-lytical information-technology platform is one of the urgent tasks of scientific re-searches and modern innovation information technology developments.