IBM is developing systems that can turn vast amounts of data collected by sensors, GPS and RFID systems into information that can be acted on to save energy and improve efficiency. The new systems are part of an environmentally-focused IBM business line aimed at a potential mega-market. The enterprise vendor has positioned its initiatives under its broad “Smarter Planet” label. The market related to smart buildings and infrastructure is hard to measure, said IBM senior vice president and group executive of IBM Software and Systems.”]