MOLINE, IL -- John Deere Construction & Forestry Company soon will offer equipment that ships from the factory with hardware, software, and wiring already integrated and ready to support the use of global positioning systems (GPS) or laser guidance systems, according to Ground Maintenance magazine. John Deere is working under separate development agreements with two suppliers of GPS and laser-based guidance systems in the construction market to develop this technology for crawlers, graders, and other machines. With an open architecture approach, the mobile construction equipment will operate software from aftermarket guidance systems and enable control through an electrical interface, according to Brett Errthum, product marketing manager.