<?xml version = "1.0" encoding = "UTF-8"?>
<xsd:schema xmlns:xsd = "http://www.w3.org/2001/XMLSchema"
	 version = "2004-11-08"
	 elementFormDefault = "qualified">
	<xsd:element name = "ItemRecognitionFailure">
		<xsd:complexType>
			<xsd:sequence>
				<xsd:element ref = "Fiducial"/>
				<xsd:element ref = "Subsystem" minOccurs = "0"/>
				<xsd:element ref = "Recipe" minOccurs = "0"/>
				<xsd:element ref = "Extensions" minOccurs = "0"/>
			</xsd:sequence>
			<xsd:attribute name = "warningType" use = "required">
				<xsd:simpleType>
					<xsd:restriction base = "xsd:string">
						<xsd:enumeration value = "MissingFiducial"/>
						<xsd:enumeration value = "BadMeasurement"/>
					</xsd:restriction>
				</xsd:simpleType>
			</xsd:attribute>
			<xsd:attribute name = "itemInstanceId" use = "required" type = "xsd:string"/>
		</xsd:complexType>
	</xsd:element>
	<xsd:element name = "Subsystem">
		<xsd:complexType>
			<xsd:attribute name = "subsystemType" use = "required" type = "xsd:string"/>
			<xsd:attribute name = "subsystemId" use = "required" type = "xsd:string"/>
			<xsd:attribute name = "revision" type = "xsd:string"/>
		</xsd:complexType>
	</xsd:element>
	<xsd:element name = "Fiducial">
		<xsd:complexType>
			<xsd:attribute name = "designator" use = "required" type = "xsd:string"/>
			<xsd:attribute name = "imageId" type = "xsd:string"/>
			<xsd:attribute name = "imageType">
				<xsd:simpleType>
					<xsd:restriction base = "xsd:string">
						<xsd:enumeration value = "LOCAL"/>
						<xsd:enumeration value = "GLOBAL"/>
					</xsd:restriction>
				</xsd:simpleType>
			</xsd:attribute>
			<xsd:attribute name = "imageShape" type = "xsd:string"/>
			<xsd:attribute name = "recognitionReference" type = "xsd:string"/>
			<xsd:attribute name = "score" type = "xsd:positiveInteger"/>
		</xsd:complexType>
	</xsd:element>
	<xsd:element name = "Recipe">
		<xsd:complexType>
			<xsd:attribute name = "recipeId" use = "required" type = "xsd:string"/>
			<xsd:attribute name = "revision" type = "xsd:string"/>
			<xsd:attribute name = "zoneList" type = "xsd:string"/>
			<xsd:attribute name = "laneList" type = "xsd:string"/>
			<xsd:attribute name = "recipeStep" type = "xsd:string"/>
			<xsd:attribute name = "command" type = "xsd:string"/>
		</xsd:complexType>
	</xsd:element>
	<xsd:element name = "Extensions"/>
</xsd:schema>
