AIXM 5.1 - UML to XSD

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AIXM 5.1 - UML to XSD

• AIXM XML Developers' Seminar

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Content

• Overview of AIXM files
• Mapping rules for Datatypes
• Mapping rules for Features
• Presentation AIXM scripts
• Creation of an extension

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Overview of AIXM files

• The file AIXM_AbstractGML_ObjectTypes.xsd
• References ISO19139 Metadata Schema
• Defines the base AIXM Feature Constructs
• AbstractAIXMFeatureType / AbstractAIXMFeature
• AbstractAIXMTimesliceType / AbstractAIXMTimeslice
• The file AIXM_DataTypes.xsd contains the mapping
  of the AIXM datatypes
• The file AIXM_Features.xsd contains the mapping
  of the AIXM features

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Overview of AIXM files
AIXM 5.1 Mapping Rules

• AIXM 5.1 Mapping rules explains how to translate
  the AIXM 5.1 UML model into an XML grammar based
  on a subset of the Geography Markup Language (GML
  3.2)
• Mapping rules are defined for
• AIXM Datatypes
• AIXM Features

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AIXM 5.1 - UML to XSD Mapping Rules - Datatypes
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AIXM 5.1 Mapping Rules - Datatypes

• Mapping ltltenumerationgtgt

ltsimpleType name"CodeAirportHeliportType"gt
ltuniongt ltsimpleTypegt
ltrestriction base"xsdstring"gt
ltenumeration value"AD"gt
ltannotationgt
ltdocumentation/gt
lt/annotationgt lt/enumerationgt
ltenumeration value"AH/gt
ltenumeration value"HP/gt
ltenumeration value"LS/gt
lt/restrictiongt lt/simpleTypegt
ltsimpleTypegt ltrestriction
base"string"gt ltpattern
value"OTHER\w2,58"/gt
lt/restrictiongt lt/simpleTypegt
lt/uniongt lt/simpleTypegt
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AIXM 5.1 Mapping Rules - Datatypes

• Mapping ltltcodelistgtgt

ltsimpleType name"CodeAerialRefuelingPrefixType_ba
se"gt ltannotationgt ltdocumentation/gt
lt/annotationgt ltrestriction
base"xsdstring"gt ltenumeration
value"AR"gt ltannotationgt
ltdocumentation/gt lt/annotationgt
lt/enumerationgt lt/restrictiongt lt/simpleTypegt lt
simpleType name"CodeAerialRefuelingPrefixType"gt
ltunion memberTypes"aixmCodeAerialRefuelingPre
fixType_base xsdstring"/gt lt/simpleTypegt
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AIXM 5.1 Mapping Rules - Datatypes

• Mapping ltltdatatypegtgt

ltsimpleType name"ValDistanceTypeBase"gt
ltannotationgt ltdocumentation/gt
lt/annotationgt ltrestriction base"xsddecimal"gt
ltminInclusive value"0"/gt
lt/restrictiongt lt/simpleTypegt ltcomplexType
name"ValDistanceType"gt ltsimpleContentgt
ltannotationgt ltdocumentation/gt
lt/annotationgt ltextension
base"aixmValDistanceTypeBase"gt
ltattribute name"uom" type"aixmUomDistanceType"
use"required"/gt lt/extensiongt
lt/simpleContentgt lt/complexTypegt
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AIXM 5.1 - UML to XSD Mapping Rules - Features
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AIXM 5.1 Mapping Rules - Features

• AIXM is based on GML
• AIXM Features are GML features
• AIXM follows the GML object-property concept.

ltAirportHeliportgt lt!-- feature --gt
ltElevatedPointgt lt!-- object --gt
ltAirportHeliportgt lt!-- feature --gt
lthasReferencePointgt lt!-- property --gt
ltElevatedPointgt lt!-- object --gt
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AIXM 5.1 Mapping Rules - Features

• For each AIXM Feature in the UML, the following
  XML schema entities are created
• FeaturePropertyType
• Feature
• FeatureType
• FeatureTimeSlicePropertyType
• FeatureTimeSlice
• FeatureTimeSliceType
• FeaturePropertyGroup
• AIXM objects are encoded as GML objects. The
  mapping rule for Objects are the same as the
  rules for Features except that
• Object do not exist outside of a feature
• TimeSlice types and elements are not created

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AIXM 5.1 Mapping Rules - Features
ltgroup name"RunwayPropertyGroup"gt
ltsequencegt ltelement name"designator"
nillable"true" minOccurs"0"gt
ltcomplexTypegt
ltsimpleContentgt ltextension
base"aixmTextDesignatorType"gt
ltattribute name"nilReason"
type"gmlNilReasonEnumeration"/gt
lt/extensiongt
lt/simpleContentgt lt/complexTypegt
lt/elementgt ltelement name"type"
nillable"true" minOccurs"0"gt
lt/sequencegt lt/groupgt

• UML properties are mapped into
  FeaturePropertyGroup

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AIXM 5.1 Mapping Rules - Features
ltgroup name"RunwayPropertyGroup"gt
ltsequencegt ltelement name"designator"
nillable"true" minOccurs"0"gt
ltelement name"surfaceProperties"
nillable"true" minOccurs"0"gt
ltcomplexTypegt ltcomplexContentgt
ltextension base"aixmSurfaceCharacteristicsPrope
rtyType"gt ltattribute name"nilReason"
type"gmlNilReasonEnumeration"/gt lt/extensiongt
lt/complexContentgt
lt/complexTypegt lt/elementgt

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AIXM 5.1 Mapping Rules - Features

• UML properties are mapped into
  FeaturePropertyGroup

ltgroup name"RunwayPropertyGroup"gt
ltsequencegt ltelement name"designator"
nillable"true" minOccurs"0"gt
ltelement name"type" nillable"true"
minOccurs"0"gt ltelement
name"associatedAirportHeliport"
type"aixmAirportHeliportPropertyType"
nillable"true" minOccurs"0"gt
lt/sequencegt lt/groupgt
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AIXM 5.1 Mapping Rules - Features

• The RunwayTimeSliceType encapsulates all the
  Runway properties that change over time

ltcomplexType name"RunwayTimeSliceType"gt
ltcomplexContentgt ltextension
base"aixmAbstractAIXMTimeSliceType"gt
ltsequencegt ltgroup
ref"aixmRunwayPropertyGroup"/gt
ltelement name"extension" minOccurs"0"
maxOccurs"unbounded"gt
ltcomplexTypegt
ltsequencegt
ltelement ref"aixmAbstractRunwayExtension"/gt
lt/sequencegt
ltattributeGroup ref"gmlOwnershipAt
tributeGroup"/gt
lt/complexTypegt lt/elementgt
lt/sequencegt lt/extensiongt
lt/complexContentgt lt/complexTypegt
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AIXM 5.1 Mapping Rules - Features
ltelement name"RunwayTimeSlice"
type"aixmRunwayTimeSliceType"
substitutionGroup"gmlAbstractTimeSlice"/gt

• RunwayTimeSlice element is of type
  RunwayTimeSliceType.

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AIXM 5.1 Mapping Rules - Features
ltcomplexType name"RunwayTimeSlicePropertyType"gt
ltsequencegt ltelement ref"aixmRunwayTim
eSlice"/gt lt/sequencegt ltattributeGroup
ref"gmlOwnershipAttributeGroup"/gt lt/complexTypegt

• A GML property type containing a FeatureTimeSlice
  objects is created.

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AIXM 5.1 Mapping Rules - Features
ltcomplexType name"RunwayType"gt
ltcomplexContentgt ltextension
base"aixmAbstractAIXMFeatureType"gt
ltsequencegt ltelement
name"timeSlice" type"aixmRunwayTimeSlicePropert
yType" maxOccurs"unbounded"/gt
lt/sequencegt lt/extensiongt
lt/complexContentgt lt/complexTypegt

• The Runway feature type is created extending the
  AbstractAIXMFeatureType with the RunwayTimeSlice
  object created before.

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AIXM 5.1 Mapping Rules - Features
ltelement name"Runway" type"aixmRunwayType"
substitutionGroup"aixmAbstractAIXMFeature"gt
ltannotationgt ltdocumentationgtA defined
rectangular area on a land aerodrome/heliport
prepared for the landing and take-off of
aircraft. Note this includes the concept of
Final Approach and Take-Off Area (FATO) for
helicopters. lt/documentationgt
lt/annotationgt lt/elementgt

• The Runway feature is then defined by the
  RunwayType.

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AIXM 5.1 Mapping Rules - Features
ltcomplexType name"RunwayPropertyType"gt
ltattributeGroup ref"gmlOwnershipAttributeGroup"/
gt ltattributeGroup ref"gmlAssociationAttribut
eGroup"/gt lt/complexTypegt

• Used for relationship to feature Runway
• Provides the xlinkhref attribute

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AIXM 5.1 - UML to XSD AIXM Scripts
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AIXM 5.1 - UML to XSD Walkthrough AIXM 5.1 XSD
Schemas
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AIXM 5.1 - UML to XSD Creation of an extension
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UML Extension

• A feature or object may be extended by creating a
  class with the same name as the core AIXM feature
  and giving it a stereotype ltltextensiongtgt.

• New classes (features and objects), that do not
  extend existing AIXM Core classes, can be also
  created.

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UML Extension

• Extensions shall NOT be included in the core AIXM
  packages

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AIXM 5.1 Mapping Rules - Extensions

• AIXM_Features.xsd is defined in such a way that
  multiple extensions can be included in the core
  FeatureTimesliceType
• Features with the stereotype of ltltextensiongtgt
  generates three related elements for that class.
• FeatureExtensionPropertyGroup
• FeatureExtensionType
• FeatureExtension

ltcomplexType name"AirspaceTimeSliceType"gt
ltcomplexContentgt ltextension
base"aixmAbstractAIXMTimeSliceType"gt
ltsequencegt ltgroup
ref"aixmAirspacePropertyGroup"/gt
ltelement name"extension" minOccurs"0"
maxOccurs"unbounded"gt
ltcomplexTypegt
ltsequencegt
ltelement ref"aixmAbstractAirspaceExtension"/gt
.
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AIXM 5.1 Mapping Rules - Extensions
ltgroup name"AirspaceExtensionPropertyGroup"gt
ltsequencegt ltelement name"flexibleUse"
nillable"true" minOccurs"0"gt .
ltelement name"level1" nillable"true"
minOccurs"0"gt .
lt/sequencegt lt/groupgt
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AIXM 5.1 Mapping Rules - Extensions
ltcomplexType name"AirspaceExtensionType"gt
ltcomplexContentgt ltextension
base"aixmAbstractExtensionType"gt
ltsequencegt ltgroup
ref"easmAirspaceExtensionPropertyGroup"/gt
lt/sequencegt lt/extensiongt
lt/complexContentgt lt/complexTypegt

• A relationship is created with an abstract XML
  element that acts as the root for all extensions.

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AIXM 5.1 Mapping Rules - Extensions
ltelement name"AirspaceExtension"
type"easmAirspaceExtensionType
substitutionGroup"aixmAbstractAirspaceExtension"
/gt
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Focus on AIXM Basic Message

• Basic Message
• is an AIXM 5.1 extension
• contains just a collection of AIXM features