Developing a Cost Justified Nation-Wide Communications Network: A Systems Approach*
讲述了一个开发团队如何结合新旧技术，以几乎零增量成本构建一个全国性数据通信网络，适用于面临类似成本约束的企业。
This article traces the efforts of a development team seeking to define and install a timely cost-effective communications network in a situation that promised little in potential hard dollar savings. The “Information Systems” approach selected involved some newer technologies in combination with some older, almost prosaic, techniques. The article shows how value- added networks, non-simultaneous communications, voice/data sharing, ASCI protocols and the electronic PBX were combined to produce a data network at literally no incremental cost to the corporation.