W5-Design-XML-using-DTD-and-XML-Schema:使用 DTD 和 XML Schema 设计 XM...

使用 DTD 和 XML 模式的 XML 设计 项目描述：基于此ER图，执行以下操作： Create a DTD that captures all this information. Avoid data redundancies (do not duplicate data, except keyrefs/idrefs). You may use IDs/IDrefs in DTD. You may introduce your own ids (ID/IDRefs can hold alphanumerical values only). Create a small XML document that matches your DTD. Validate your XML document against your DTD. Create an XML Schema that