Abstract: The refinement of existing search output. The present invention further improves upon the prior art in that: (1) it provides a means for employing the automation of the selection process; (2) it further provides for the elimination of the need to manually reformulate the search, which is very tedious; and (3) the use of weighted logic processes to refine the search.

Abstract: Data records transmitted from a plurality of vehicles are collected at a central data repository, where realtime or batch analysis and profiling can take place to facilitate vehicle fleet maintenance. Preferably, each data record includes data derived by synchronizing on-board diagnostic computer output and GPS 3-dimensional location data, correlated by time and tagged with vehicle identification information, and is forwarded to the central data repository via cellular Internet. The central data repository includes analysis and profiling routines to identify immediate operational problems on a given vehicle, e.g., engine overheating, as well as overall fleet operational behavior, i.e. which vehicles, drivers and routes lead, over time, to increased maintenance costs.