| <?xml version="1.0"?> | |
| <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"> | |
| <xsd:element name= "contact" type="ContactType"/> | |
| <xsd:complexType name="ContactType"> | |
| <xsd:choice minOccurs="2" maxOccurs="2"> | |
| <xsd:element name="customer" type="xsd:string" /> | |
| <xsd:element name="comment" type="xsd:string" minOccurs="0"/> | |
| </xsd:choice> | |
| </xsd:complexType> | |
| </xsd:schema> | |