<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
    <xs:element name="mission" type="MissionType"></xs:element>
    
    <xs:complexType name="MissionType">
    	<xs:all>
    		<xs:element name="name" type="xs:string" minOccurs="0" maxOccurs="1"></xs:element>
    		<xs:element name="description" type="xs:string" minOccurs="0" maxOccurs="1"></xs:element>
    		<xs:element name="url" type="xs:string" minOccurs="0" maxOccurs="1"></xs:element>
    	</xs:all>
    	<xs:attribute name="id" type="xs:ID" use="required" />
    </xs:complexType>
</xs:schema>