1. A computer-mediated system for gathering, standardizing, unifying and delivering a user-desired data set from one or more data source locations, comprising: an interactive text editor software tool executed on a computer for use by an administrator to compose and maintain a library of standardization schema, each schema stored in the library containing a set of data source formulas providing instructions for the system to locate and retrieve data from one or more data sources, each schema also containing a set of data standardization functions providing instructions for the system to handle and process data retrieved from the data sources; a requestor software tool executed on the same or another computer of the system for accessing the library such that a requestor invokes a selected one of the stored schema; and the same or another computer of the system, responsive to a requestor invoked schema, executing the set of data source formulas of the invoked schema so as to retrieve data and executing the set of data standardization functions of the invoked-schema so as to standardize and unify the retrieved data for delivery to the requestor.