TFD Group is the world leader in the development of analytical methods and software tools for decision support to hardware sy ... stem planners. System developers, operators and maintainers, both military and commercial, use TFD products and advice in both strategic planning and tactical execution. Our software tools, all in use world-wide for a minimum of 15 years, can and are – being used with virtually any kind of hardware system – from aircraft, spacecraft, tanks and ships to weather stations and train, bus and taxi fleets. read more