体系架构（Enterprise Architecture, EA）的开山之作，之前一直引用，从来没有系统的学习，通过翻译加深理解，与感兴趣的朋友一起学习探讨。继续展开说明第三列——网络（位置）的描述，对网络描述的技术架构呈现、分解架构呈现进行说明。
翻译中有一些是自己的理解，不对的地方大家多多指正。
实际技术选型的约束将影响技术架构模型。
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Technology constraints would be introducedin the technology model.
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实际技术选型的约束将影响技术架构模型（建造者视角）。技术架构格将描述物理硬件和软件，例如，IBM3090处理器、3270显示设备、个人计算机、多虚拟存储(MVS)操作系统、高级通信功能/网络控制程序(ACFINCP)等。连接方面，比如同步数据链路控制(SDLC)，双步通信，4800波特等。
The technology constraints would beintroduced in the technology model (the builder’s perspective). This cell woulddepict physical hardware and software, for example, an IBM 3090 processor, 3270display device, Personal Computer, Multiple Virtual Storage ( MVS) operatingsystem, Advanced Communications Function/Network Control Program (ACFINCP),etc. at the nodes and Synchronous Data Link Control (SDLC), bisynchronouscommunications, 4800 baud, etc. for the lines.
在详细描述（非上下文）单元格中，节点一般是指地址，而连接则指网络协议。
In the detailed description(out-of-context) cell, the nodes would be addresses, and the lines would beprotocol.
综上所述，虽然没有一些图形化示例作为说明，但可以类比的利用建筑行业架构之间的关系，来说明不同描述、不同架构呈现之间的联系。
Insummary, although actual pictures have not been included in the paper, examplescould be presented to illustrate every hypothetical architecturalrepresentation postulated by the relationship among the various architecturalperspectives and the different types of descriptions.
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