最初，许多企业仅仅将XML作为一种信息交换格式，构建它是为了发送和解析收到的内容，以从中提取所需的数据。
Initially, many businesses treated XML as an information exchange format only, constructing it for sending and deconstructing upon receipt to extract the data they wanted.
当您开始构建应用程序的数据模型定义时，最初会显示一个信息帮助页面（图 8）。
When you begin building the data model definition for your application, an informational help page is initially displayed (Figure 8).
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