AIXM 5 Concepts

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AIXM 5 Concepts
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Mission

• Based on global aeronautical data requirements
• ICAO standards and practices
• Industry requirements
• Modular and extensible
• Support current and future AIM information system
  requirements
• Digital AIPs
• Automated charting and publications
• Integrated digital NOTAMs
• Aerodrome Mapping Databases and applications
• Situational displays

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Presentation Topics

• AIXM Design Principles
• Design Concepts
• ISO 19100 standards
• Geography Markup Language (GML)
• Temporality
• Conceptual Areas

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Presentation Topics

• AIXM Design Principles
• Design Concepts
• ISO 19100 standards
• Geography Markup Language (GML)
• Temporality
• Conceptual Areas

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AIXM Design Objectives
Technical Design Decisions
ISO19100series
UML
GML 3.2
Metadata
Integrity
Data Quality Mandates
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AIXM Design Objectives
New Data Requirements
Technical Design Decisions
Aerodrome Mapping
ISO19100series
Terminal Procedures
UML
Obstacles
GML 3.2
Metadata
Integrity
Data Quality Mandates
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AIXM Design Objectives
Future Capabilities
New Data Requirements
Modularity
Technical Design Decisions
Extensibility
Aerodrome Mapping
ISO19100series
FlexibleExchange
Terminal Procedures
UML
FlexibleMessages
Obstacles
GML 3.2
Permanent Temporary
Metadata
Integrity
Data Quality Mandates
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AIXM Design Objectives
Future Capabilities
New Data Requirements
Modularity
Technical Design Decisions
Extensibility
Aerodrome Mapping
ISO19100series
FlexibleExchange
Terminal Procedures
UML
FlexibleMessages
Obstacles
GML 3.2
Permanent Temporary
Metadata
Integrity
Data Quality Mandates
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Presentation Topics

• AIXM Design Principles
• Design Concepts
• ISO 19100 standards
• Geography Markup Language (GML)
• Temporality
• Conceptual Areas

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Technical Design DecisionsIn the ISO19100 series
framework

• Internationally developed standard for expressing
  geographical data
• Features - Airports, Runways, Airspace
• Metadata - Data originator, Status, Published
  Date
• Temporality - Start and end dates
• Geometry - Point, Line, Polygon
• Helps us organize information for the
  aeronautical domain
• Well-established
• Geography Markup Language (GML)
• Widely adopted and implemented by vendors and
  governments
• Standards reduce barriers to adoption by vendors
  and governments

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AIXM Structure and ApplicationBased on ISO 19100
AIXM Conceptual Model (UML)
ISO 19126 Feature Catalog ISO 19109 Application
Schema ISO 19107 Spatial ISO 19108 Temporal ISO
19115 Metadata
Aeronautical Features
Extensibility
Geometry
Properties
Application Models
Temporality
Metadata
Data Types
Conceptual Model Feature Catalog Feature Data
Dictionary
Application Schema
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AIXM Structure and ApplicationBased on ISO 19100
AIXM XML Schema (XML)
AIXM Conceptual Model (UML)
GML 3.1 Profile
Aeronautical Features
Extensibility
Geometry
Properties
Application Schemas
Features
Application Models
Temporality
Metadata
Data Types
Data Types
Data encoding layer
ISO 19136 GML XML Schema
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AIXM Structure and Application

• AIXM provides the standard foundation for
  describing aeronautical information
• Features Runway, En route Route, Airspace
• Properties Valid time, Location
• Data Types code list of airspace types
• Metadata Data originator
• AIXM can be used to build compliant application
  schemas
• Enable real-world implementation
• Digital NOTAMs
• Procedure Design
• Automated Charting
• Enables maximum flexibility while remaining ISO
  compliant
• Examples this afternoon and tomorrow

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What is GML?

• ISO exchange format for geographical features
  encoding
• Based on XML Schema
• Open GIS Consortium
• Good industry adoption by Geographic
  InformationSystem (GIS) vendors
• Commercial Off the Shelf Software

ltgmlPointgt ltgmlposgt46.90278
0.08111lt/gmlposgt lt/gmlPointgt
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Temporality Model

• Definition
• A model that incorporates the concept of time
• Key assertions
• All features are temporal with start of life and
  end of life
• Example, A new air traffic control sector
• All features change over time
• Example, A VOR is out of service for a day
• AIXM Temporality Model
• Relates features to the time extent in which they
  are valid
• Provides various means to describe the time
  extent

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Versions and Delta

• Version The state of a feature and value of its
  properties over a time period between two
  changes.
• Delta Difference between two consecutive
  versions.

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Temporality Model (continued)

• Operational changes are modeled as deltas
• Deltas can be permanent or temporary
• Permanent delta A set of properties that have
  changed or will change permanently. The permanent
  delta will result in a new baseline.
• Baseline The state of a feature and all of the
  feature properties as a result of a permanent
  delta. The Baseline state of a feature also
  exists when the feature is initially created. The
  Baseline state lasts until the next permanent
  delta.
• Temporary delta A set of values for one or more
  feature properties that are effective for a
  limited time. The result is a temporary change to
  an underlying feature version.
• Version The state of a feature and all the
  feature properties during the time period between
  two changes.

This is a conceptual temporal model that can be
implemented in many ways
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TemporalityConceptual Model
Imagine that AML Navaid undergoes an upgrade that
changes its frequency from 125 MHz to 132.5 MHz

1. Schedule permanent change to coincide with update
   cycle
2. Shutdown AML before the upgrade
3. Perform the upgrade
4. Start AML in test mode to evaluate change

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TemporalityConceptual Model
Imagine that AML Navaid undergoes an upgrade that
changes its frequency from 125 MHz to 132.5 MHz
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Presentation Topics

• AIXM Design Principles
• Design Concepts
• ISO 19100 standards
• Geography Markup Language (GML)
• Temporality
• Conceptual Areas

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AIXM Coverage

• Aerodrome/Heliport
• Aerodrome/Heliport Facilities
• Airspace
• Holding
• Navaids and Points
• Obstacles
• Organizations
• Procedures
• Routes
• Services

• Shared Components
• Geometry
• Notes
• Time Management
• Aircraft

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Aerodrome and Heliports

• Aerodromes
• Heliports
• Movement Areas
• Distances, Services, Lights

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Aerodrome and Heliports

• Data necessary to support aerodrome mapping
  applications (RTCA DO-272A, EUROCAE ED-99A)

• Movement area geometries
• Intersections
• Markings

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Aerodrome and Heliports

• Usage and Restrictions
• Who can use the aerodrome
• When they can use it

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Aerodrome and Heliport Facilities

• Fuel
• Oil
• Oxygen
• Passenger Facility

• Ground Services
• Repair
• Fire fighting
• Other

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Airspace

• Represents
• ICAO Regions
• Areas
• Zones
• Sectors
• Airspaces used in/by
• Air traffic services
• Special regulated airspace
• Client defined airspace
• Various limited airspace

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Airspace Altitudes
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Derived Airspace
Airspaces with same horizontal border
Airspace derived fromaggregation of parts
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Holding

• En route and terminal holding
• Planned and Unplanned
• Segments by length or time
• Integrated with procedure conceptual area

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Navaids and Points
Significant Points Used for Navigation
Navaids Navigation Service based on Equipment
Designated Points Points not associated with
equipment
Fixes and waypoints
DME, VOR, TACAN, Azimuth, and so on
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Obstacles

• ICAO Annex 4, 14, 15 DOC 8126
• RTCA /EUROCAE DO-276A/ED-98A
• IATA

• Lighting
• Schedule
• Area 1, 2, 3
• Point, Line, Polygon

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Organizations and Units

• Organization Authority
• Model organizations and authorities
• ATS organizations (IATA), Aircraft Operators
  (United), States (Argentina), Groups of States
  (NATO Members)
• Unit
• Unit that provides services
• Approach Control, Military, Tower, ARTCC

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Terminal Procedures

• Coverage
• PANS-OPS, TERPS
• Arinc 424
• Conventional and GPS
• Describes
• Procedures
• Segment Legs
• Minima
• Circling
• Protection Areas
• Design Surfaces

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Routes
EnRouteRoute
RouteSegment
RoutePortion
Flight LevelsTrack LengthTrack WidthTrack
DirectionFlight Rules and Use
Standard flight levelsMinimum AltitudesChange
over pointsDME usage (RNAV)

• Describe En route structure
• Conventional and GPS
• Minimum clearance altitudes
• Usage restrictions

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Services

• Airspace
• Route
• Aerodrome/Heliport
• Route
• Holding
• Procedure

Service
Unit
Unit provides service

• Communication
• Flight Information
• Air Traffic Control
• Meteorological
• Radar

Provided On
Service is
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Status and ScheduleWith FAA implementation plans
Dec
07
Dec
06
Jun
07
Dec
09
AIXM
5
AIXM
5
RC
1
AIXM
5
RC
2
Possible AIXM
5
.
x
2006
2007
2008
2009
2005
2010
Jun
06
2007
2006
2008
2009
AIM Global Congress
AIXM User Conference
AIXM Design Review
AIXM User Conference
AIXM User Conference