1. A system of managing supermarket refrigeration information systems comprising: one or more on-site computers for receiving dynamic run-time data, which are magnitudes of one or more sensor measurements, from and operably connected with multiple on-site refrigeration control systems, wherein the on-site computer has a processor and software for translating the dynamic run-time data into a generic data structure and one or more databases for storing the translated dynamic run-time data; a communication network operably connecting the on-site computers with a central server and for transmitting a copy of each database to a corresponding central server database; a central server having one or more databases for storing a copy of each on-site computer database, a processor, and software for: i) repetitively detecting, at a selected timing interval, that the on-site database contains dynamic run-time data updates, ii) in response to the repetitively detecting of the dynamic run-time data updates, making a complete copy of any updated on-site database, iii) replacing the corresponding copy on the central server with the updated copy of the database, wherein the updated copy of the database contains current dynamic run-time data; and iv) in response to a user query of the updated copy of the database on the central server, presenting the current magnitude of the sensor measurement to the user from the updated copy of the database, without retrieving the data individually from the on-site computer; a second communication network operably connecting the central server with one or more user computers and which is capable of transmitting data therebetween.