ID:	AIXM-484
target version:	AIXM 5.2
version:	1.0
last updated:	25 FEB 2021
status:	APPROVED

Description

Rename the “RunwayVisualRange” class into "RunwayVisualRangeEquipment".

Rationale for change

See https://aixmccb.atlassian.net/browse/AIXM-349.

The current definition of the feature RunwayVisualRange (RVR) in AIXM is the following: “A meteorological equipment providing information about the distance over which the pilot of an aircraft on the centre line of a runway can see the runway surface markings of the lights delineating the runway or identifying its centre line.”

This definition does not align with the class name RunwayVisualRange due to its description as a meteorological equipment. In the ICAO ATM Information Reference Model (AIRM), there are both RunwayVisualRange and RunwayVisualRangeEquipment entities to represent the RVR measurements, as well as information on the equipment.

Therefore, the name of the AIXM feature "RunwayVisualRange" needs to be changed into "RunwayVisualRangeEquipment", to align with the definition of the feature and with its actual use in the model.

Impact assessment

[FWD_MAP_1:1] Data mapping is possible and no data loss occurs when data is exchanged from a system (A) that uses AIXM 5.1.1 for output towards a system (B) that uses AIXM 5.2 for input.

[BWD_MAP_1:1] Data mapping is possible and no data loss occurs when data is exchanged from a system (B) that uses AIXM 5.2 for output towards a system (A) that uses AIXM 5.1.1 for input.

Change Proposal details

In the UML model:

Rename <<feature>> “RunwayVisualRange” to “RunwayVisualRangeEquipment”.

Mapping AIXM 5.1.1 to AIXM 5.2 (forward)

[MAPC-00] The following algorithm shall be applied:

For each RunwayVisualRange element:
- Rename RunwayVisualRange to RunwayVisualRangeEquipment

Mapping AIXM 5.2 to AIXM 5.1.1 (backward)

[MAPC-00] The following algorithm shall be applied:

For each specified RunwayVisualRangeEquipment element:
- Rename RunwayVisualRangeEquipment to RunwayVisualRange.

Mapping example

(Note: for mapping test data see: https://github.com/aixm/mapping_52_511/tree/master/AIXM-xxx)

AIXM Input	AIXM Output
Backward RenameRVR RunwayVisualRange 5.2 input message:AIXMBasicMessage message:hasMember RunwayDirection gml:identifier = fac34bfc-fc4f-4da7-ad8a-84ee687f41bc timeSlice RunwayDirectionTimeSlice gml:validTime gml:TimePeriod gml:beginPosition = 2021-02-25 gml:endPosition = 2021-04-22 interpretation = PERMDELTA sequenceNumber = 1 featureLifetime gml:TimePeriod gml:beginPosition = 2009-01-01T00:00:00Z gml:endPosition = approachGuidance = PRECISION_CAT_II message:hasMember RunwayVisualRangeEquipment gml:identifier = fac34bfc-fc4f-4da7-ad8a-84ee687f41bb timeSlice RunwayVisualRangeEquipmentTimeSlice gml:validTime gml:TimePeriod gml:beginPosition = 2021-02-25 gml:endPosition = 2021-04-22 interpretation = PERMDELTA sequenceNumber = 1 featureLifetime gml:TimePeriod gml:beginPosition = 2009-01-01T00:00:00Z gml:endPosition = readingPosition = TDZ associatedRunwayDirection = urn:uuid:fac34bfc-fc4f-4da7-ad8a-84ee687f41bc	Backward RenameRVR RunwayVisualRange 5.1.1 output message:AIXMBasicMessage message:hasMember RunwayDirection gml:identifier = fac34bfc-fc4f-4da7-ad8a-84ee687f41bc timeSlice RunwayDirectionTimeSlice gml:validTime gml:TimePeriod gml:beginPosition = 2021-02-25 gml:endPosition = 2021-04-22 interpretation = BASELINE sequenceNumber = 1 featureLifetime gml:TimePeriod gml:beginPosition = 2009-01-01T00:00:00Z gml:endPosition = precisionApproachGuidance = ILS_PRECISION_CAT_II message:hasMember RunwayVisualRange gml:identifier = fac34bfc-fc4f-4da7-ad8a-84ee687f41bb timeSlice RunwayVisualRangeTimeSlice gml:validTime gml:TimePeriod gml:beginPosition = 2021-02-25 gml:endPosition = 2021-04-22 interpretation = BASELINE sequenceNumber = 1 featureLifetime gml:TimePeriod gml:beginPosition = 2009-01-01T00:00:00Z gml:endPosition = readingPosition = TDZ associatedRunwayDirection = urn:uuid:fac34bfc-fc4f-4da7-ad8a-84ee687f41bc

AIXM Input

AIXM Output

Backward RenameRVR RunwayVisualRange 5.2 input

message:AIXMBasicMessage

message:hasMember

RunwayDirection

gml:identifier = fac34bfc-fc4f-4da7-ad8a-84ee687f41bc

timeSlice

RunwayDirectionTimeSlice

gml:validTime

gml:TimePeriod

gml:beginPosition = 2021-02-25

gml:endPosition = 2021-04-22

interpretation = PERMDELTA

sequenceNumber = 1

featureLifetime

gml:TimePeriod

gml:beginPosition = 2009-01-01T00:00:00Z

gml:endPosition =

approachGuidance = PRECISION_CAT_II

message:hasMember

RunwayVisualRangeEquipment

gml:identifier = fac34bfc-fc4f-4da7-ad8a-84ee687f41bb

timeSlice

RunwayVisualRangeEquipmentTimeSlice

gml:validTime

gml:TimePeriod

gml:beginPosition = 2021-02-25

gml:endPosition = 2021-04-22

interpretation = PERMDELTA

sequenceNumber = 1

featureLifetime

gml:TimePeriod

gml:beginPosition = 2009-01-01T00:00:00Z

gml:endPosition =

readingPosition = TDZ

associatedRunwayDirection = urn:uuid:fac34bfc-fc4f-4da7-ad8a-84ee687f41bc

Backward RenameRVR RunwayVisualRange 5.1.1 output

message:AIXMBasicMessage

message:hasMember

RunwayDirection

gml:identifier = fac34bfc-fc4f-4da7-ad8a-84ee687f41bc

timeSlice

RunwayDirectionTimeSlice

gml:validTime

gml:TimePeriod

gml:beginPosition = 2021-02-25

gml:endPosition = 2021-04-22

interpretation = BASELINE

sequenceNumber = 1

featureLifetime

gml:TimePeriod

gml:beginPosition = 2009-01-01T00:00:00Z

gml:endPosition =

precisionApproachGuidance = ILS_PRECISION_CAT_II

message:hasMember

RunwayVisualRange

gml:identifier = fac34bfc-fc4f-4da7-ad8a-84ee687f41bb

timeSlice

RunwayVisualRangeTimeSlice

gml:validTime

gml:TimePeriod

gml:beginPosition = 2021-02-25

gml:endPosition = 2021-04-22

interpretation = BASELINE

sequenceNumber = 1

featureLifetime

gml:TimePeriod

gml:beginPosition = 2009-01-01T00:00:00Z

gml:endPosition =

readingPosition = TDZ

associatedRunwayDirection = urn:uuid:fac34bfc-fc4f-4da7-ad8a-84ee687f41bc

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