利用这些连接和将 Perl 数据结构转换成 XML 的设施，Perl 成为一个为现有系统创建 XML 接口的出色平台。
With these connections, and facilities for converting Perl data structures to XML, Perl presents an excellent platform for creating XML interfaces for existing systems.
这种方法适合声明类型系统并自从RPC时代就存在，而且我们发现它在现代静态类型语言中非常普遍，即‘接口（interface）’结构。
The approach is appropriate for declared type systems and has existed since RPCs, and we find it commonly in modern statically typed languages, namely the ‘interface’ construct.
系统接口的物理类及属性结构(等同于数据库结构，在其中直接数据访问是最好或唯一的选择)。
Physical class and attribute structure of system interfaces (which will equate to database structures where direct data access is the best or only option).
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