A method, system, and computer readable medium for organizing, managing, and accessing large quantities of data in a centralized database received from a plurality of non-homogenous data sources. In the method, a specific format is defined for storing the received data in a plurality of data records in the centralized database. A plurality of datasets are created including a definition and a translation for each data item, the plurality of datasets establishing the data that is transferred into or out of the centralized database. The plurality of datasets are stored in the centralized database. A plurality of value tags are created defining a plurality of data formats and database column names to use in importing or exporting data. An inbound interface is created for accepting data from the plurality of non-homogenous data sources wherein the data represent measured values of physical resources. An outbound interface is created for exporting data upon request to an external application.