首先，公路收费者和系统提供商无力开发出满足这个精心设计的方案的所有需求的软件。
Above all, Toll Collect and its suppliers were unable to develop the software to marry together all the bits of their elaborate system.
JES：对于大多数成功的解决方案提供商来说，构造软件系统的过程和上面是一样的。
JES: For a lot of successful solution providers, this is the experience of building software today.
传统的电话系统或ip网络描述为竖井(silo)结构，由与网络设备提供商(Net work Equipment Providers, NEP)硬件紧密偶合的专用黑盒解决方案组成。
The traditional telephony system or IP network is depicted as a silo structure, which is comprised of proprietary black box solutions closely coupled with network Equipment Providers (NEP) hardware.
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