Note that if your application lives in a sub-domain (for example, foo.example.com), type your basedomain in the BaseDomain field (that is, example.com).
请注意如果您的应用程序位于子域中（例如，foo.example.com），则请在 Base Domain 字段中键入您的基础域（也就是说，example.com）。
2
Similarly, a domain element can specialize only from an element in the base topic or in another domain.
类似地，域元素只可从基本主题或另外一个域中的元素进行专门化。
3
You can select the most effective data base type for each domain to reduce operation cost and to provide the right level of availability for each domain.