Proprietary systems each require their own dedicated hardware components because each system uses its own separate displays, printers and, in many cases, computers. Managers must identify space to house the equipment. By contrast, interoperable systems use one computer to operate the system. Managers can connect multiple displays and printers to the systems, which access all information in the system. As a result, the amount of space dedicated to the operation of an interoperable system is much smaller.
Training is another major difference in system start-up costs.
Each proprietary system uses its own operating system and user interface, so operators and maintenance personnel must receive training in the use of each system. Basic training for operators typically lasts one to three days for each system. Training for maintenance personnel may last as long as several weeks for each system. Interoperable systems, by contrast, use one operating system and user interface. Operators and maintenance personnel must learn only one system, reducing the cost of training.