Specifying the Type of Content of a Complex Type

A complex type can contain either:

1. Open the property sheet of a complex type and select a type in the Content field:

   • simple content – character data or a simple type (but no elements), or

   • complex content – elements or elements and character data

2. Click Apply to make available the Properties tool to the right of the list.
3. [optional] Click the Properties tool to open the property sheet of the content, and specify an ID and, in the case of complex content, whether the content can be mixed:

   Property	Description
   ID	ID for the complex content. Its value must be of type ID and unique within the model containing the complex content
   Mixed [complex content only]	Specifies that character data is allowed to appear between child elements of the complex type.

4. Click OK to return to the diagram.