The efficiency and effectiveness of field service workers has taken a quantum leap over the past few years with all the advantages of rugged mobile computers. Gone are the days of shuffling through piles of work orders, calling back to the home office for driving directions or schedule updates. Inventory can be managed by using handhelds with integrated barcode scanners, ensuring that each truck is stocked with all parts that might be required on a call. And waiting to invoice customers until the manual data entry could be completed back at the office is also a thing at the past. Service technicians now have the ability to invoice a customer immediately on the spot once the work is done.