DD ENV 12658:1999

Foreword
Introduction
1. Scope
2. Normative references
3. Definitions
4. Overview
5. Application schema
    5.1 General
    5.2 Use of EXPRESS language
         5.2.1 General
         5.2.2 Interface specification
         5.2.3 SUPERTYPEs and SUBTYPEs
    5.3 Identification of application schemas
    5.4 Transfer of sound, video and other binary data
6. Data transfer content
    6.1 General
    6.2 Encoded application schema
    6.3 Geographic Data
         6.3.1 Data-encoding schema
         6.3.2 Data type length limits
7. Data transfer
    7.1 General
    7.2 File transfer
         7.2.1 General
         7.2.2 File datasets
         7.2.3 Header section
         7.2.4 Data section
         7.2.5 Short names
         7.2.6 Character Set
    7.3 Message handling
Annex A (normative) "application_encoding" schema
Annex B (normative) " data_encoding" schema
Annex C (normative) "file_transfer" schema
Annex D (normative) "messaging" schema
Annex E (normative) "external_files" schema
Annex F (normative) Table of short names
Annex G (informative) Data users' guide
Annex H (informative) Application developers' guide
Annex I (informative) Bibliography

Gives a method for the transfer of geographic data and their metadata. Defines the transfer schemas, implementation mechanisms and encoding rules for transfering geographic data. Supports transfer for data defined by application specific schemas and for data defined by standardised schemas.