Context & Background
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The revised Annex 15, 16th Edition to the ICAO Convention
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, complemented by a new PANS-AIM document
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(ICAO DOC 10066), has entered into force on 8th November 2018.
This marks the final AIS transition towards the provision of digital data sets, which will gradually replace the provision of paper documents.
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One of the key elements of the new PANS-AIM document is the definition of an “AIP Data Set”, which comprises a minimal list of features (such as Navaids, Points, Airports, Airspace, Routes, etc.) and their properties that all states worldwide should be able to provide
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in the coming years.
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The purpose of this project is to provide common coding rules and guidelines for the provision of the AIP Data Set in AIXM 5.1(.1) format
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, with the aim to ensure that such data sets can be effectively used by the downstream AIS data chain actors, particularly by Data Provider (DAT) organisations and flight planning service providers.
Scope & Structure
The present documentation of the AIXM 5 coding guidelines for the ICAO AIP Data Set
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comprises the following elements:
Introduction
The introduction page contains an explanation about the context, scope and structure of the
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documentation.
Besides the copyright notice this page contains some contact information in case you want to send information or ask a question regarding the guidelines.
This
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section provides the detailed mapping between the ICAO PANS-AIM AIP Data set requirements and AIXM 5.1(.1).
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It starts with a brief introduction, highlighting the key principles that have been applied for the mapping. Then, it is divided into several parts based on the AIP Data Set subjects (
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sub-domain) defined in the PANS-AIM and its Aeronautical Data Catalogue (Appendix 1 of DOC 10066). All data items (properties and sub-properties of the subjects), which are considered relevant for an AIP Data Set, are mapped to the corresponding AIXM 5.1(.1) features and attributes.
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This section is divided in several subsections based on the AIXM features the PANS-AIM subjects have been mapped to.
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It contains detailed AIXM coding guidelines (how to encode points, navaids, airspace, etc.)
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and coding examples.
For each subsection
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an "AIXM Coding Checklist" is provided, listing all the AIXM attributes for that particular
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sub-domain with the indication if they are mandatory or optional
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.
The coding guidelines also incorporate or refer to pages from other two spaces:
UML Model Overview. These pages explain the main aspects of the AIXM UML model for each topic, such as airport/heliport, airspace, route, navaid, etc.
Common Coding Rules. These pages contain the coding rules for AIXM features that are re-used by the main subjects (sub-domains) e.g. geometry, schedules, surface characteristics, etc.
This section contains the list of data set verification rules, which are derived from the ICAO provisions for the AIP data set and also from additional end user requirements, where applicable.
This section
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provides data packing, data format and other such rules that are meant to ensure the seamless use of the digital data sets coming from different States. It contains a brief introduction,
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which explains the
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key assumption
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made in the definition of the interoperability rules and a description of relevant use cases.
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The section
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has dedicated parts for each
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specific topic such as metadata, feature identification and referencing, use of extensions, etc.
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This section contains a
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high-level introduction of the "Donlon" AIP Data Set Specimen, which is based on the fictitious
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AIP Specimen data contained in the ICAO AIS Manual (DOC 8126)
.
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The actually data set (i.e. AIXM file) is not stored
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on a GitHub environment for version control reasons.
A consolidated list of all the specific coding examples presented on individual coding pages (
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including their xpath expression) can also be found in this section.
Additionally, you will find several file lists that contain all kind of files used in the scope of these guidelines (e.g. supporting documents) which can be downloaded or viewed directly in Confluence.
The content of this file list may change as new documents may be added or obsolete documents may be removed.
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A dedicated page contains a summary of all the references used on the individual guideline pages.
A
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- Space Shortcuts
In case you have the sidebar expanded on the left-hand side, besides the table of content you will find also some Space Shortcuts on top.
This are external links (e.g. to AIXM.aero) or internal links (e.g. to other spaces such as the 'AIXM Coding Overview').
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As part of the AIXM Coding Overview Space, you will also find the following sections:
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The diagram below gives a condensed overview of the structure of the whole AIXM Confluence documentation. The the main areas relevant the AIP Data Set coding are highlighted in green.
- Space Shortcuts
In case you have the sidebar expanded on the left-hand side, besides the table of content you will find also some Space Shortcuts on top.
This are external links (e.g. to AIXM.aero) or internal links (e.g. to other spaces such as the 'AIXM Coding Overview').
As part of the AIXM Coding Overview Space, you will also find the following sections:
UML Classes - Model Overview. These pages serve as a kind of short "management summary" covering the main aspects of an AIXM topic, such as airport/heliport, airspace, route, navaid, etc.
Common Coding Rules. These pages contain the coding rules for AIXM features that are re-used by the main subjects (subdomains) e.g. geometry, services, radio communications, etc.
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Frequently Asked Questions page.