I've just been listening to In Business on Radio 4 and, as a result, may be able to shed some light on the OP.
"Smart" appears to relate to Bluetooth and devices talking to each other, for example, you can access the thermostat in your house via your smartphone, and put the central heating back on when you're on your way home from your holiday, rather than coming in to a cold house and waiting a couple of hours for it to warm up. (the Ainsworths already do this).
In the programme, someone who is developing smart systems went round an office, asking people what their problems were and seeing how they could use smart technology to solve them. One man's problem was that he never knew when the sandwich trolley was coming, sometimes missed it and therefore sometimes went without his lunch.
The solution was for the computer to track the progress of the sandwich trolley(gathering data), and when the trolley was approaching his floor, send him a text message to inform him that the trolley was on its way.
The programme then interviewed a young woman who was helping a farmer with his cows. The computer monitored the cows for things like whether they were lying down, when they had eaten, whether they were scratching themselves etc and could identify abnormal behaviour patterns. The farmer found this useful as it could alert him to early signs of mastitis, or if oestrus was imminent (ie, when the cows were ready to copulate).
So I imagine 'leveraging the data' means harnessing it to put to some useful purpose.
Hope that helps, and no I have not made it all up