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B.1. How to execute the crc.java code ................................................................................. 41
B.2. Java code of crc.java ................................................................................................... 41
C. Character Encoding Issues ..................................................................................................... 47
C.1. Introduction ............................................................................................................... 47
C.2. What is a Character Encoding? .................................................................................... 47
C.3. Unicode ..................................................................................................................... 47
C.4. Why Character Encoding is Important .......................................................................... 48
C.5. Specifying Character Encodings in XML ..................................................................... 48
Edition Number: 4.5 iii
AIXM PRIMER
AIXM PRIMER
List of Figures
3.1. VOR Feature Diagram ........................................................................................................... 9
3.2. DME Feature Diagram ........................................................................................................ 10
4.1. AIXM Schema File Inclusions ............................................................................................. 13
5.1. AIXM-Update Diagram ....................................................................................................... 15
6.1. CRC Algorithm Flowchart ................................................................................................... 24
Edition Number: 4.5 v
AIXM PRIMER
AIXM PRIMER
List of Tables
1. DOCUMENT STATUS AND TYPE ...................................................................................... ix
2. ELECTRONIC BACKUP ..................................................................................................... ix
3. DOCUMENT APPROVAL ................................................................................................... ix
4. DOCUMENT CHANGE RECORD ...................................................................................... ix
6.1. Example data for CRC class ................................................................................................ 25
A.1. AIXM-AICM Mappings ................................................................................................... 28
A.2. Deprecated types ................................................................................................................ 40
C.1. Printable ASCII Characters ................................................................................................. 47
Edition Number: 4.5 vii
AIXM PRIMER
AIXM PRIMER
Document Identification Sheet
Table 1. DOCUMENT STATUS AND TYPE
STATUS CLASSIFICATION
Working Draft General Public ✓
Draft EATMP
Proposed Issue Restricted
Released Issue ✓
Table 2. ELECTRONIC BACKUP
INTERNAL REFERENCE NAME: AIXM_Primer_4.5.xml
HOST SYSTEM MEDIA SOFTWARE
Microsoft Windows Type: Hard disk DocBook editor
Media Identification:
The following table identifies all management authorities who have successively approved the present
issue of this document
Table 3. DOCUMENT APPROVAL
AUTHORITY NAME AND SIGNATURE DATE
Project Manager & Editor Eduard POROSNICU 20/03/2006
Editor Silas JONES 31/07/2005
The following table records the complete history of the successive editions of the present document.
Table 4. DOCUMENT CHANGE RECORD
SECTIONS / PAGES AFFECTED
EDITION DATE REASON FOR CHANGE
Corrections in mapping table 2.3, 6.3, Appendix A
AICM-AIXM. Added note with
regard to the fields used by the
EAD for CRC calculation. Added
explanation about "Obstacle in
Airspace" in 2.3.
4.5 20/03/2006
Updated mapping table AICM- Appendix A
AIXM
4.5 - draft-2 28/11/2005
4.5 - draft-1 21/11/2005 Updated for AIXM 4.5 2.5, 3.1, 4, Appendix A
4.0 - draft 31/07/2005 Updated for AIXM 4.0 All
1.1 01/10/2002 Proposed Issue All
1.0 05/06/2002 Draft Issue All
0.5 30/05/2002 Document creation All
Edition Number: 4.5 ix
AIXM PRIMER
AIXM PRIMER
Executive Summary
A primer1 is “a small book containing basic facts about a subject, used especially when you are beginning
to learn about that subject”. The AIXM Primer contains basic facts about the AIXM XML Schema -
including things not described by the Schema itself - and its intended usage. It provides the essential
information necessary to start an AIXM implementation.
　
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