Case 3-2
Judy has begun to apply the basic information that you have given her about schemas, and she would now like your help in mastering the details of how schemas work.
Judy has included the following element definition in her schema:
     <xs:element name="ingredient">
            <xs:complexType>
                  <xs:sequence>
                        <xs:element name="name" type="xs:string" />
                        <xs:element name="amount" type="xs:string" />
                  </xs:sequence>
            </xs:complexType>
     </xs:element>
-In her definition of the recipe element, Judy would like to reference the existing definition of the ingredient element. Which of the following element declarations accomplishes this?

Question

Quizplus · Accepted Answer

The best choice to reference an existing element is to use the "ref" attribute followed by the name of the existing element, which in this case is "ingredient". Therefore, the correct element declaration is "<xs:element ref="ingredient" />". Option A is incorrect because it only declares the element without referencing the existing definition. Option B is incorrect because it uses "idref" instead of "ref". Option C is incorrect because it uses "existing" instead of "ingredient" to reference the existing element.

Case 3-2 Judy Has Begun to Apply the Basic Information That You