应用程序团队通过从接口规范派生的项访问规范形式(还记得服务信息模型吗？)的信息，对信息如何产生并不关心。
The application team accesses information in canonical form (remember the service information model?) through canonically derived interfaces and has no interest in how it is produced.
如果指定名称的派生形式不存在，您就会收到一个错误。
If a subform of the specified name does not exist, you receive an error.
这就是前面提到的派生形式名。
These are the subform names that we mentioned earlier in this article.
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