Service Definition Identification

service definition identification	title	Service definition for the IWXXM METAR-SPECI Subscription and Request Service
	edition	00.00.05
	reference date	2024-06-17

Service Identification

service identification	service name	IWXXM METAR-SPECI Subscription and Request Service

Service Abstract

service abstract	The IWXXM METAR-SPECI Subscription and Request Service provides the service consumer with METAR/SPECI report(s) for one or more aerodromes of a State as it becomes available. The service consumer can subscribe to the service, specifying the aerodrome of interest, and receive information as it becomes available. It is also possible to send a direct request, using a request-reply mechanism, to the service to get the relevant meteorological information. The meteorological information is issued by the designated Aeronautical Meteorological Station. The meteorological information is only intended to be used by service consumers within the aviation domain.

service abstract

The IWXXM METAR-SPECI Subscription and Request Service provides the service consumer with METAR/SPECI report(s) for one or more aerodromes of a State as it becomes available.

The service consumer can subscribe to the service, specifying the aerodrome of interest, and receive information as it becomes available.

It is also possible to send a direct request, using a request-reply mechanism, to the service to get the relevant meteorological information.

The meteorological information is issued by the designated Aeronautical Meteorological Station. The meteorological information is only intended to be used by service consumers within the aviation domain.

Service Definition Provider

service definition provider	name	EUROCONTROL
	description	EUROCONTROL is an intergovernmental organisation with 41 Member and 2 Comprehensive Agreement States.
	point of contact	swim@eurocontrol.int

Geographical Extent of Information

geographical extent of information	The service shall make METAR/SPECI report(s) available for one or more aerodrome(s) within a State. Note: it is expected that a single service will be implemented per State, covering all of the aerodromes within the State.

geographical extent of information

The service shall make METAR/SPECI report(s) available for one or more aerodrome(s) within a State.

Note: it is expected that a single service will be implemented per State, covering all of the aerodromes within the State.

Service Categories

service categories	category	category name	regulated information exchange
		value	METEOROLOGICAL_INFORMATION_EXCHANGE
		scheme	http://reference.swim.aero/information-services/service-categories/CodeRegulatedInformationExchangeType.html
	category	category name	information domain
		value	METEOROLOGICAL_INFORMATION
		scheme	https://reference.swim.aero/information-services/service-categories/CodeInformationDomainType.html
	category	category name	business activity
		value	INFORMATION_MANAGEMENT
		scheme	http://reference.swim.aero/information-services/service-categories/CodeBusinessActivityType.html
	category	category name	intended service consumer
		value	CIVIL_AIRSPACE_USER MILITARY_AIRSPACE_USER CIVIL_AIR_NAVIGATION_SERVICE_PROVIDER MILITARY_AIR_NAVIGATION_SERVICE_PROVIDER AIRPORT_OPERATOR REGULATED_METEOROLOGICAL_SERVICE_PROVIDER AIR_TRAFFIC_SERVICE_PROVIDER COMMUNICATION_NAVIGATION_AND_SURVEILLANCE_SERVICE_PROVIDER PROVIDER_OF_DATA_SERVICES AIRSIDE_GROUND_HANDLER
		scheme	https://reference.swim.aero/information-services/service-categories/CodeStakeholderType.html
	category	category name	intended service provider
		value	REGULATED_METEOROLOGICAL_SERVICE_PROVIDER
		scheme	http://reference.swim.aero/information-services/service-categories/CodeStakeholderType.html
	category	category name	service type
		value	METEOROLOGICAL_FEATURE_ACCESS_SERVICE METEOROLOGICAL_INFORMATION_SUBSCRIPTION_SERVICE
		scheme	http://reference.swim.aero/information-services/service-categories/CodeServiceType.html

Service Standard Reference

Explanatory note

This field is left empty.

service standard reference	reference
	implemented options
	deviations/additions

Operational Environment

operational environment	operational needs	A list of operational needs that this service contributes to satisfying is available in Appendix B. This service satisfies these by offering meteorological information as regulated by Commission Implementing Regulation (EU) 2017/373 of 1 March 2017 and ICAO Annex 3. The scope of the meteorological information satisfies the EU Implementing Regulation 2021/116 - Common Project One.
capabilities	The service provides high quality, up-to-date, trusted, regulated meteorological information in digital form for use by service consumers within the aviation domain.
information exchange requirements	The service takes into account the following information exchange requirements: IER 1: The information currently included in the METAR/SPECI reports as defined in Commission Implementing Regulation (EU) 2017/373, ICAO Annex 3 Amdt 82 and PANS-MET.

operational environment

operational needs

A list of operational needs that this service contributes to satisfying is available in Appendix B.

This service satisfies these by offering meteorological information as regulated by Commission Implementing Regulation (EU) 2017/373 of 1 March 2017 and ICAO Annex 3.

The scope of the meteorological information satisfies the EU Implementing Regulation 2021/116 - Common Project One.

capabilities

The service provides high quality, up-to-date, trusted, regulated meteorological information in digital form for use by service consumers within the aviation domain.

information exchange requirements

The service takes into account the following information exchange requirements:

IER 1: The information currently included in the METAR/SPECI reports as defined in Commission Implementing Regulation (EU) 2017/373, ICAO Annex 3 Amdt 82 and PANS-MET.

Service Functions

service functions	function	name	Request the latest METAR/SPECIs
		description	The service consumer shall be able to request the latest METAR/SPECIs for an aerodrome or group of aerodromes.
		real-world effect	The meteorological information is received and can be used by the service consumer.
	function	name	Subscribe to METAR/SPECIs
		description	The service consumer shall be able to subscribe/unsubscribe in order to receive METAR/SPECIs based on ICAO location indicator codes for aerodromes.
		real-world effect	The service consumer subscribes to the service and will receive METAR/SPECIs as per the subscription or unsubscribes from the service.
	function	name	Distribute METAR/SPECIs
		description	The service shall distribute the METAR/SPECIs when they are available.
		real-world effect	The service consumer receives the METAR/SPECIs.

Service Access and Use Conditions

service access and use conditions	legal constraints
	service policies	business policy
		operational policy	There shall be a service policy to ensure that only service consumers within the aviation domain can use the service. The service policy shall include a requirement that service consumers cannot pass the information obtained from the service to non-aviation users without prior authorisation from the service provider.
		technical policy
	service consumption constraints		There shall be a service consumption constraint to ensure that a service consumer does not impose undue loads on computer and network resources, for example, by polling it at a higher frequency than the status is normally provided.

Security Constraints

security constraints	authentication	The service shall ensure consumer authentication in accordance with EUROCONTROL Specification for SWIM Technical Infrastructure (TI) Yellow Profile requirement SWIM-TIYP-0042. The service shall ensure provider authentication in accordance with EUROCONTROL Specification for SWIM Technical Infrastructure (TI) Yellow Profile requirement SWIM-TIYP-0042.
	authorisation	The service shall ensure that satisfactory authorisation is put in place according to EUROCONTROL Specification for SWIM Technical Infrastructure (TI) Yellow Profile requirement SWIM-TIYP-0070.
	confidentiality	The service shall ensure point-to-point confidentiality in accordance with EUROCONTROL Specification for SWIM Technical Infrastructure (TI) Yellow Profile through the use of Transport Layer Security (TLS) 1.2 or above.
	integrity	The service shall ensure point-to-point integrity in accordance with EUROCONTROL Specification for SWIM Technical Infrastructure (TI) Yellow Profile through the use of Transport Layer Security (TLS) 1.2 or above.

Quality of Service

quality of service	performance	capacity	The service shall achieve a quality that is sufficient to ensure the service is fit for purpose.
	performance	response time	The service shall achieve a quality that is sufficient to ensure the service is fit for purpose.
	reliability	availability	The service shall achieve a quality that is sufficient to ensure the service is fit for purpose.
	reliability	recoverability	The service shall achieve a quality that is sufficient to ensure the service is fit for purpose.
	security	confidentiality	The service shall ensure confidentiality by using SWIM Technical Infrastructure (TI) Yellow Profile bindings.
	security	integrity	The service shall ensure integrity by using SWIM Technical Infrastructure (TI) Yellow Profile bindings.

Quality of Data

quality of data	The meteorological information offered by the service shall be verified by the service provider. The meteorological information offered by the service shall be encoded according to the rules of the IWXXM standard. The meteorological information offered by the service shall satisfy the WMO No. 8 (2018) Guide to Meteorological Instruments and Methods of Observation.

quality of data

The meteorological information offered by the service shall be verified by the service provider.

The meteorological information offered by the service shall be encoded according to the rules of the IWXXM standard.

The meteorological information offered by the service shall satisfy the WMO No. 8 (2018) Guide to Meteorological Instruments and Methods of Observation.

Source of Information

source of information	source	The service provider shall ensure that the meteorological data offered by the services is received from the appropriate authorised originating sources. This includes: REGULATED_METEOROLOGICAL_SERVICE_PROVIDER acting as the designated Aeronautical Meteorological Station (AMS); and REGULATED_METEOROLOGICAL_SERVICE_PROVIDER acting as the designated Aerodrome Meteorological Office (AMO) for the TREND.

source of information

source

The service provider shall ensure that the meteorological data offered by the services is received from the appropriate authorised originating sources. This includes:

REGULATED_METEOROLOGICAL_SERVICE_PROVIDER acting as the designated Aeronautical Meteorological Station (AMS); and
REGULATED_METEOROLOGICAL_SERVICE_PROVIDER acting as the designated Aerodrome Meteorological Office (AMO) for the TREND.

Service Validation Information

Explanatory note

This field is left empty.

service validation information	description

Application Message Exchange Pattern

application message exchange pattern	PUBLISH_SUBSCRIBE SYNCHRONOUS_REQUEST_REPLY

Service Behaviour

service behaviour	typical behaviour	The service behaviour shall be in accordance with the patterns detailed in the Message Exchange Patterns: Identification Guidelines. The typical service behaviour, is: The service consumer subscribes to the service The service sends the latest METAR/SPECIs to subscribers when they are available and match their subscription. The interfaces have different behaviour. A combination of an AMQP 1.0 implementation and an OGC implementation shall be used for the basic behaviour. The typical behaviour for PUBLISH_SUBSCRIBE means that: The subscription is handled by either: a request-reply implementation (see IWXXM METAR-SPECI Subscription and Request Service Subscription Interface) or an email request to the service provider. The distribution of the messages is handled by an AMQP 1.0 implementation (see IWXXM METAR-SPECI Subscription and Request Service Distribution Interface). The typical behaviour for REQUEST_REPLY (as used in IWXXM METAR-SPECI Subscription and Request Service Request Interface) is as follows: Synchronous Request/Reply The request message is sent from the service consumer to the service The service consumer remains blocked while awaiting the reply The service remains blocked while processing the reply The METAR-SPECI, the reply message, is sent from the service to the service consumer.

service behaviour

typical behaviour

The service behaviour shall be in accordance with the patterns detailed in the Message Exchange Patterns: Identification Guidelines.

The typical service behaviour, is:

The service consumer subscribes to the service
The service sends the latest METAR/SPECIs to subscribers when they are available and match their subscription.

The interfaces have different behaviour. A combination of an AMQP 1.0 implementation and an OGC implementation shall be used for the basic behaviour.

The typical behaviour for PUBLISH_SUBSCRIBE means that:

The subscription is handled by either:
- a request-reply implementation (see IWXXM METAR-SPECI Subscription and Request Service Subscription Interface) or
- an email request to the service provider.
The distribution of the messages is handled by an AMQP 1.0 implementation (see IWXXM METAR-SPECI Subscription and Request Service Distribution Interface).

The typical behaviour for REQUEST_REPLY (as used in IWXXM METAR-SPECI Subscription and Request Service Request Interface) is as follows:

Synchronous Request/Reply

The request message is sent from the service consumer to the service
The service consumer remains blocked while awaiting the reply
The service remains blocked while processing the reply
The METAR-SPECI, the reply message, is sent from the service to the service consumer.

Service Monitoring

service monitoring	A service monitoring mechanism should be made available to service consumers.

Service Interfaces

service interfaces	interface	name	IWXXM METAR-SPECI Subscription and Request Service Request Interface
		description	Allows the service consumer to request the latest available METAR/SPECIs. Note: This interface is used to group the operations offered by the chosen OGC standard.
		provider/consumer side	Provider side
	interface	name	IWXXM METAR-SPECI Subscription and Request Service Subscription Interface
		description	Allows the service consumer to select and subscribe to METAR/SPECIs for aerodromes of interest. It allows the service consumer to manage the subscriptions e.g. to unsubscribe. Note: This is an optional interface. Many service providers will prefer to receive subscription requests by email.
		provider/consumer side	Provider side
	interface	name	IWXXM METAR-SPECI Subscription and Request Service Distribution Interface
		description	Allows the service provider to distribute the latest available METAR/SPECIs meeting the need of the service consumer that has subscribed for updates.
		provider/consumer side	Consumer side

SWIM TI Profile and Interface Bindings

IWXXM METAR-SPECI Subscription and Request Service Request Interface

SWIM TI profile and interface bindings	profile name	EUROCONTROL Specification for SWIM Technical Infrastructure (TI) Yellow Profile
	profile version	1.1
	selected service interface binding	WS_LIGHT
	selected network interface binding	The service shall use the network bindings of the SWIM TIYP.
	description	The interface shall use at least one of the following OGC standards: for services that exchange the meteorological information as resources: OGC API – Environmental Data Retrieval Standard; for services that exchange the meteorological information as features: OGC Web Feature Service 2.0 Interface Standard; OGC API – Features. Note: it is a best practice for new services that exchange meteorological information to implement the OGC API – Environmental Data Retrieval Standard. Existing services based on the OGC Web Feature Service 2.0 Interface Standard should indicate an end-of-life date.

IWXXM METAR-SPECI Subscription and Request Service Subscription Interface

SWIM TI profile and interface bindings	profile name	EUROCONTROL Specification for SWIM Technical Infrastructure (TI) Yellow Profile
	profile version	1.1
	selected service interface binding	WS_LIGHT
	selected network interface binding	The service shall use the network bindings of the SWIM Technical Infrastructure (TI) Yellow Profile.
	description

IWXXM METAR-SPECI Subscription and Request Service Distribution Interface

SWIM TI profile and interface bindings	profile name	EUROCONTROL Specification for SWIM Technical Infrastructure (TI) Yellow Profile
	profile version	1.1
	selected service interface binding	SWIM_TI_YP_1_1_AMQP_MESSAGING
	selected network interface binding	The service shall use the network bindings of the SWIM TIYP.
	description	AMQP 1.0 shall be used to distribute messages as explained in the Publish/Subscribe Push MEP: Implementation Guidance.

Service Interface Protocols and Data Format

service interface protocols and data format	transport / messaging protocols	The service shall use TLS1.2 or later in accordance with EUROCONTROL Specification for SWIM Technical Infrastructure (TI) Yellow Profile.
service interface protocols and data format	data format	This is captured at Service Message level (see below). WS_LIGHT does not mandate a data format. The header expresses what is used.

Service Operations

IWXXM METAR-SPECI Subscription and Request Service Request Interface

Explanatory note

The OGC Web Feature Service Interface Standard and OGC API – Environmental Data Retrieval Standard are used to implement the service operations.

It is not the intention to repeat the standardised operations here. However, the table below illustrates how the WFS GetFeature operation would look in the context of this service.

Service operations	operation	operation name	GetFeature
		description	The GetFeature operation returns a selection of features from a data store. It responds to a GetFeature Request message with a Meteorological Aerodrome Observation Message that satisfies the query expressions specified in the request.
		messages	Request, METAR/SPECI

IWXXM METAR-SPECI Subscription and Request Service Subscription Interface

Service operations	reference	url	Meteorological SWIM Services Subscription Interface Standard
description	The standard operations for subscription and subscription management. The following operations shall be implement at a minimum: subscribe unsubscribe

Service operations

reference

url

Meteorological SWIM Services Subscription Interface Standard

description

The standard operations for subscription and subscription management.

The following operations shall be implement at a minimum:

subscribe
unsubscribe

IWXXM METAR-SPECI Subscription and Request Service Distribution Interface

Service operations	operation	operation name	publish
		description	This operation allows the service provider to publish METAR-SPECI report(s) to service consumers based on their subscriptions.
		messages	METAR/SPECI

Service Messages

Explanatory note

The OGC Web Feature Service Interface Standard and OGC API – Environmental Data Retrieval Standard detail the basic messages such as request and response messages.

It is not the intention to repeat the standardised messages here. The table below provides extra details for the METAR/SPECI message.

service messages	message	name	METAR/SPECI
		description	The message that is an output of the service, containing the METAR/SPECI information.
		direction	Out
		data format	The METAR/SPECI information shall be provided in ICAO’s Meteorological Information Exchange Model (IWXXM) format containing a collection of features.
	message	name	Request
		description	Request message submitted to the service containing query expressions for the WFS GetFeature operation or the EDR HTTP GET operation.
		direction	In
		data format
	reference	url	Meteorological SWIM Services Subscription Interface Standard
	reference	description	The standard messages for subscription and subscription management.

Information Definition (Minimum) and (Extended)

information definition	The service shall offer meteorological information in accordance with ICAO Annex 3. The service shall offer meteorological information in accordance with the rules of latest applicable version of IWXXM. Note: the latest applicable version of IWXXM (IWXXM 2023-1) contains the METAR/SPECI schema version 3.1.0.

information definition

The service shall offer meteorological information in accordance with ICAO Annex 3.

The service shall offer meteorological information in accordance with the rules of latest applicable version of IWXXM.

Note: the latest applicable version of IWXXM (IWXXM 2023-1) contains the METAR/SPECI schema version 3.1.0.

Filter Encoding

filter encoding	The IWXXM METAR/SPECI Subscription and Request Service Request Interface shall support filtering based on the ICAO location indicator of the aerodrome of interest. The IWXXM METAR/SPECI Subscription and Request Service Subscription Interface shall allow for the selection of subscription based on clearly defined criteria. The service may support other filters based on the operators defined in the OGC Filter Encoding 2.0 Encoding Standard on a case by case basis.

filter encoding

The IWXXM METAR/SPECI Subscription and Request Service Request Interface shall support filtering based on the ICAO location indicator of the aerodrome of interest.

The IWXXM METAR/SPECI Subscription and Request Service Subscription Interface shall allow for the selection of subscription based on clearly defined criteria.

The service may support other filters based on the operators defined in the OGC Filter Encoding 2.0 Encoding Standard on a case by case basis.

Machine-Readable Service Interface Definition

Explanatory note

This field is left empty. No machine-readable service interface definition is provided.

machine-readable service interface definition	reference

Model View

Explanatory note

This field is left empty. No model view is provided.

model view	reference

Abbreviations and Acronyms

abbreviations and acronyms	abbreviation	code	AMO
	abbreviation	term	Aerodrome Meteorological Office
	abbreviation	code	AMQP
	abbreviation	term	Advanced Message Queuing Protocol
	abbreviation	code	AMS
	abbreviation	term	Aeronautical Meteorological Station
	abbreviation	code	API
	abbreviation	term	Application Programming Interface
	abbreviation	code	EDR
	abbreviation	term	Environmental Data Retrieval
	abbreviation	code	EU
	abbreviation	term	European Union
	abbreviation	code	HTTP
	abbreviation	term	Hypertext Transfer Protocol
	abbreviation	code	ICAO
	abbreviation	term	International Civil Aviation Organization
	abbreviation	code	IWXXM
	abbreviation	term	ICAO Meteorological Information Exchange Model
	abbreviation	code	JSON
	abbreviation	term	JavaScript Object Notation
	abbreviation	code	MEP
	abbreviation	term	Message Exchange Pattern
	abbreviation	code	METAR
	abbreviation	term	Aviation routine weather report (in aeronautical meteorological code)
	abbreviation	code	OGC
	abbreviation	term	Open Geospatial Consortium
	abbreviation	code	PANS-MET
	abbreviation	term	ICAO Procedures for Air Navigation Services – Meteorology
	abbreviation	code	SPECI
	abbreviation	term	Aerodrome SPECIAL meteorological report (in meteorological code)
	abbreviation	code	SWIM
	abbreviation	term	System wide information management
	abbreviation	code	TI
	abbreviation	term	Technical Infrastructure
	abbreviation	code	TIYP
	abbreviation	term	Technical Infrastructure Yellow Profile
	abbreviation	code	TLS
	abbreviation	term	Transport Layer Security
	abbreviation	code	TREND
	abbreviation	term	A concise statement of the Expected Significant changes in the meteorological conditions at that Aerodrome to be appended to a local routine or local SPECIAL report, or a METAR or SPECI.
	abbreviation	code	WFS
	abbreviation	term	Web Feature Service
	abbreviation	code	WMO
	abbreviation	term	World Meteorological Organization
	abbreviation	code	XML
	abbreviation	term	Extensible Markup Language

Appendix A: References

references	reference	title	EU Implementing Regulation 2021/116 - Common Project One
		version	1 February 2021
		description	Commission Implementing Regulation (EU) 2021/116 of 1 February 2021 on the establishment of the Common Project One supporting the implementation of the European Air Traffic Management Master Plan provided for in Regulation (EC) No 550/2004 of the European Parliament and of the Council, amending Commission Implementing Regulation (EU) No 409/2013 and repealing Commission Implementing Regulation (EU) No 716/2014.
		url	https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A32021R0116
		document type
	reference	title	ICAO Annex 3 Meteorological Service for International Air Navigation
		version
		description	The object of the meteorological service outlined in Annex 3 is to contribute to the safety, efficiency and regularity of air navigation. This is achieved by providing necessary meteorological information to operators, flight crew members, air traffic services units, search and rescue units, airport management and others concerned with aviation. Close liaison is essential between those supplying meteorological information and those using it.
		url	https://store.icao.int/en/annex-3-meteorological-service-for-international-air-navigation
		document type
	reference	title	ICAO Procedures for Air Navigation Services – Meteorology (PANS-MET)
		version	tbd
		description
		url
		document type
	reference	title	WMO No. 8 (2018) Guide to Meteorological Instruments and Methods of Observation
		version	2021/2018 edition
		description
		url	https://community.wmo.int/en/activity-areas/imop/wmo-no_8
		document type
	reference	title	Commission Implementing Regulation (EU) 2017/373
		version	1 March 2017 (as amended)
		description	Commission Implementing Regulation (EU) 2017/373 of 1 March 2017 laying down common requirements for providers of air traffic management/air navigation services and other air traffic management network functions and their oversight, repealing Regulation (EC) No 482/2008, Implementing Regulations (EU) No 1034/2011, (EU) No 1035/2011 and (EU) 2016/1377 and amending Regulation (EU) No 677/2011.
		url	https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A02017R0373-20230126
		document type
	reference	title	OGC API – Environmental Data Retrieval Standard
		version	1.1
		description	OGC API standards define modular API building blocks to spatially enable Web APIs in a consistent way. The OpenAPI specification is used to define the API building blocks.
		url	https://www.ogc.org/standard/ogcapi-edr/ https://docs.ogc.org/is/19-086r6/19-086r6.html
		document type	SERVICE_SPECIFICATION
	reference	title	ICAO Meteorological Information Exchange Model (IWXXM)
		version
		description	The ICAO Meteorological Information Exchange Model (IWXXM) is an exchange model capturing Meteorological information. It was introduced to support the exchange of meteorological information in accordance with ICAO Annex 3.
		url	https://github.com/wmo-im/iwxxm
		document type	INFORMATION_DEFINITION
	reference	title	OGC Web Feature Service 2.0 Interface Standard
		version	2.0
		description	WFS offers direct fine-grained access to geographic information at the feature and feature property level. Note: This is equivalent to ISO 19142 - Geographic Information - Web Feature Service.
		url	https://www.ogc.org/standard/wfs/
		document type	SERVICE_SPECIFICATION
	reference	title	OGC API – Features
		version
		description	OGC API Features provides API building blocks to create, modify and query features on the Web.
		url	https://www.ogc.org/standard/ogcapi-features/
		document type	SERVICE_SPECIFICATION
	reference	title	OGC Filter Encoding 2.0 Encoding Standard
		version
		description	This jointly developed OGC and ISO TC/211 International Standard describes an XML and KVP encoding of a system neutral syntax for expressing projections, selection and sorting clauses collectively called a query expression. These components are modular and intended to be used together or individually by other standards which reference this International Standard. Note: This is equivalent to ISO 19143 - Geographic Information - Filter encoding.
		url	https://www.ogc.org/docs/is
		document type	SERVICE_SPECIFICATION
	reference	title	Message Exchange Patterns: Identification Guidelines
		version	JULY 2nd, 2019
		description	Document intended to facilitate the understanding of message exchange patterns from an application and Technical Infrastructure perspective.
		url	https://reference.swim.aero/technical-infrastructure/message-exchange-patterns-identification-guidelines.html
		document type	SERVICE_BEHAVIOUR_DESCRIPTION
	reference	title	Publish/Subscribe Push MEP: Implementation Guidance
		version	JULY 2nd, 2019
		description	This document intends to serve as implementation guidance of the Publish/Subscribe Push Message Exchange Pattern using SWIM-TI Yellow Profile Service Bindings.
		url	https://reference.swim.aero/technical-infrastructure/guidance-for-pub-sub-push-implementation.html
		document type

Appendix B: Operational Needs

Transversal

Support integration of existing and/or tailored weather information with operational processes to aid decision-making and improve understanding of the operational impact of adverse weather.

By service consumer role

Stakeholder/Role	Description of stakeholder/role	Needs for aerodrome observations	Notes
CIVIL_AIRSPACE_USER	A generic term designating an organization operating aircraft and its pilots, the flight operations centres (FOC) responsible for the strategic planning of a flight and the entity responsible for the execution of a flight which is traditionally a flight deck.	Generate graphical representations of data in support of responsibilities. Retrieve dynamic data to support digital integrated briefing concepts. Ensure safe operations by responding to changes in the situation. Require information on unique weather constraints such as fog, snow, convection etc., or on particular operational constraints such as runway throughput, winter procedures, noise abatement procedures, free routing, etc.	This role is recognised in the SESAR Deployment Programme as a recommended service consumer of the aerodrome and en-route services.
MILITARY_AIRSPACE_USER	Airspace User under the authority of a military organisation.	Generate graphical representations of data in support of responsibilities. Retrieve dynamic data to support digital integrated briefing concepts. Ensure safe operations by responding to changes in the situation. Require information on unique weather constraints such as fog, snow, convection etc., or on particular operational constraints such as runway throughput, winter procedures, noise abatement procedures, free routing, etc.	This role is recognised in the SESAR Deployment Programme as a service consumer of the aerodrome and en-route services. Although the military is not obliged to use SWIM, they currently rely on civil weather information and therefore it will be essential for their operations to use SWIM-services.
CIVIL_AIR_NAVIGATION_SERVICE_PROVIDER	Any public or private entity providing air navigation services for general air traffic.	Ensure safe operations by responding to changes in the conditions of the airspace infrastructure. Support real-time displays in, for example, remote towers. Require information on unique weather constraints such as fog, snow, convection etc., or on particular operational constraints such as runway throughput, winter procedures, noise abatement procedures, free routing, etc.	This role is recognised in the SESAR Deployment Programme as a service consumer of the aerodrome and en-route services. The real-time aspects will have an impact on the service architecture.
MILITARY_AIR_NAVIGATION_SERVICE_PROVIDER	Any public or private entity providing air navigation services for military air traffic.	Ensure safe operations by responding to changes in the conditions of the airspace infrastructure. Require information on unique weather constraints such as fog, snow, convection etc., or on particular operational constraints such as runway throughput, winter procedures, noise abatement procedures, free routing, etc.	This role is recognised in the SESAR Deployment Programme as a service consumer of the aerodrome and en-route services. Although the military is not obliged to use SWIM, they currently rely on civil weather information and therefore it will be essential for their operations to use SWIM-services.
AIR_TRAFFIC_SERVICE_PROVIDER	A generic term meaning variously, flight information service, alerting service, air traffic advisory service, air traffic control service (area control service, approach control service or aerodrome control service).	Support situational awareness of APP and TWR units due to provision of current weather information	This role is recognised in the SESAR Deployment Programme as a service consumer of the aerodrome and en-route services under the term of ANSP.
REGULATED_METEOROLOGICAL_SERVICE_PROVIDER	An office designated to provide meteorological service for international air navigation.	MET providers shall have the possibility and ability to consume needed information to perform their tasks e.g. flight briefing or to update their forecast products based on the latest weather information	This role is not recognised by the SESAR Deployment Program as a service consumer. However, it is recognised in ATM Master Plan (https://atmmasterplan.eu/data/enablers/20417016.) Moreover, looking at the EU Reg. 2017/373, a MET Service Provider has to support stakeholders and for that MET-data is needed from other MET-providers. Also such MET-data is needed for their own purpose to evaluate the correctness of forecasts.
AERONAUTICAL_INFORMATION_SERVICE_PROVIDER	A service established within the defined area of coverage responsible for the provision of aeronautical information/data necessary for the safety, regularity and efficiency of air navigation.	Not applicable
COMMUNICATION_NAVIGATION_AND_ SURVEILLANCE_SERVICE_PROVIDER	A provider of CNS services.	CNS service providers shall have the possibility and ability to receive current wind information, especially during timeframes strong winds are forecasted.	Some equipment e.g. ground radar at airports have to be shut down if the wind rises above a certain windspeed threshold to avoid damage
PROVIDER_OF_DATA_SERVICES	A public or private entity responsible for the management of a Data Service Provision (e.g. to one or several Virtual Centre).	In case a provider of data services also offers/handles MET data, the provider shall have the possibility and ability to receive the data needed
NETWORK_MANAGER	The organization responsible for enabling the optimum use of airspace and ensure that Airspace Users can operate preferred trajectories while allowing maximum access to airspaces and air navigation services.	Not applicable
AIRPORT_OPERATOR	The civilian or military agency, group or individual which exercises control over the operations of the civil airport or military airfield.	Support airport-CDM. Support aerodrome processes including low visibility operations, aerodrome warnings and runway configuration management.	This role is recognised in the SESAR Deployment Programme as a service consumer of the aerodrome services.
AIRSIDE_GROUND_HANDLER	A stakeholder involved in the services necessary for an aircraft's arrival at, and departure from, an airport, other than air traffic services.	Provide information to ground handlers especially in regard to hazardous weather which might affect their operations (thunderstorms, freezing rain,..)
MILITARY_DEFENCE_CENTRE	A military defence centre. Note: these centres, e.g., check for diplomatic clearance.	Not applicable

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