UML to XSD

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UML to XSD
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Assumptions

• Basic Understanding of UML
• Basic Understanding of XML
• Basic Understanding of XSD schemas

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Discussion Points

• AIXM Features, Objects and Properties
• AIXM UML modelling concepts
• GML concepts
• Dynamic Features
• GML Object-Property concept
• Feature identification

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Features

• Real World
• Fundamental objects
• Change in time
• UML Class

stereotype
 
 
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Objects

• Do not exist alone
• 0M
• UML class

 
 
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Properties

• Attributes and Relationships about the Feature or
  Object.

 
 
Simple Properties
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Properties
Uni-directional association used when the
relationship refers to a feature.
Composition Aggregation used when the property
describes an attribute(s) with cardinality many.
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Properties
Standard UML association class is used to
describe attributes about the relationship.
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Properties
Inheritance - The specialized feature inherits
all of the properties of the more general
feature.
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Discussion Points

• AIXM Features, Objects and Properties
• AIXM UML modelling concepts
• GML concepts
• Dynamic Features
• GML Object-Property concept
• Feature identification

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Dynamic Feature

• Change over time
• Timeslice

 
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GML Object Property Concept

• Create Type
• Define attributes and relationships

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Object - Type

• Create object
• Assign type to object

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Discussion Points

• AIXM Features, Objects and Properties
• AIXM UML modelling concepts
• GML concepts
• Dynamic Features
• GML Object-Property concept
• Feature identification

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Feature Identification

• AIXM Feature Identification requirements
• Identification provided by GML
• AIXM Identification

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AIXM Identification Requirements

• System independent
• Globally unique
• Need not be understood
• Remain the same over time
• Repeatable within a GML document

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GML Identification

• gmlid a local ID
• ltaixmPointReference gmlid"IDPR1"gt
• ltaixmPointReference gmlid_001"gt
• gmlidentifier
• ltgmlidentifier codeSpaceurnUUIDgtd6cd9be0-15d4
  -11da-8cd6-0800200c9a66lt/gmlidentifiergt
• ltaixmidentifier codeSpace"www.faa.gov/avn/avnis"
  gt1111lt/aixmidentifiergt
• ltaixmidentifier codeSpace"www.faa.gov/ato/usnof"
  gt53232lt/aixmidentifiergt

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Property Type

• Created property type to define the relationship.
• If the relationship points to an object, include
  object in the property type
• If the relationship points to a feature, include
  attribute xlinkhref.

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XLINKHREF

• Within the Document
• ltaixmuses_PointReference xlinkhref"IDPR1" /gt
• External to the Document
• ltaixmusedOn_Procedure xlinkhref
  "www.faa.gov/avnis//InstrumentDepartureProcedure
  aixmidentifer'55423'
• or (timeSlice/InstrumentDepartureProcedureTi
  meSlice/interpretation'BASELINE' and
  timeSlice/InstrumentDepartureProcedureTimeSlice/de
  signator'BODINE RNAV') and /substring(gmlbeginP
  osition,1,10) gt '2006-05-11' and
  (substring(gmlendPosition,1,10) lt
  '2006-05-11' )" "/gt

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Summary

• AIXM Features, Objects and Properties
• AIXM UML modelling concepts
• GML concepts
• Dynamic Features
• GML Object-Property concept
• Feature identification

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Questions?