约翰,英国某电网公司的检修技术员。早上7:30,走出家门前,他打开了随身携带的移动信息机,通过无线网络接收当天的工作指令——这是前一天半夜从公司的主计算机系统传过来的。一刻钟后,他开车来到第一个工作现场,同伴们也已经带着相关的材料和特殊工具到达了现场,工作已经准备就 John, a service technician at a power grid company in the United Kingdom. 7:30 am, out of the house, he opened the portable information machine, through the wireless network to receive the day’s work orders - which was the day before midnight came from the company’s main computer system. A quarter of an hour later, he drove to the first job site, and his companions had arrived at the site with the relevant materials and special tools. The work was ready