Binary

• Introduction
  • Target namespace
  • Declared namespaces
• Schema
  • Diagram
  • XML Schema Definition
• Example

Introduction

This is a schema to encapsulate binary data of arbitrary format in XML using Base64 encoding. The specification consists of a description of the XML schema and an example of an instance of the schema.

Target namespace

http://preservation.naa.gov.au/binary-object/1.0

Declared namespaces

Prefix Namespace

xsd
http://www.w3.org/2001/XMLSchema

binary-object
http://preservation.naa.gov.au/binary-object/1.0

Schema

The following sections describe the binary XML schema.

Diagram

XML Schema Definition

<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
           xmlns:binary-object="http://preservation.naa.gov.au/binary-object/1.0" 
           targetNamespace="http://preservation.naa.gov.au/binary-object/1.0"
           version="1.0">
<xsd:annotation>
 <xsd:documentation xml:lang="en">
  binary-object. A schema to encapsulate binary data of arbitrary
  format in XML using Base64.
  Developed by the National Archives of Australia. Copyright 2010
  Commonwealth of Australia.
 </xsd:documentation>
</xsd:annotation>
<xsd:element name="binary-object">
 <xsd:complexType>
   <xsd:attribute name="description" type="xsd:string" use="optional" />
 </xsd:complexType>
</xsd:element>
</xsd:schema>

Example

The following is an extract of an instance of the binary schema.

<binary-object:binary-object xmlns:binary-object="http://preservation.naa.gov.au/binary-object/1.0" 
binary-object:description="The following data is a MIME-compliant (RFC 2045) PEM base64 (RFC 1421) representation of the original file contents.">
/1dQQ5gYAAABCgABAAAAAPv/BQAyAFQBAAD//wgAAABCAAAABwAqAAAASgAAAAwAWgAAAKAAAAAD
AAoAAAD6AAAAQ291cmllcgBDb3VyaWVyAENvdXJpZXIgQm9sZABDRyBUaW1lcyBCb2xkIEl0YWxp
YwBgNxL7AVgCQP7+/v7+/v7//v////7///7//////////////////////////0hQIExhc2VySmV0
IDUAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABIUExBUzUuUFJTACA19AF4AP4VNhBYBwAAAAQRQMkA
uWA3EvsB8AAUASwBXAHwniccFVgCQNAGBgABAAYABtAIM3wAeAAAAAEAAAAAAAAAQm9sZAAAAAAA
AAAAAAAAAAAAAAAAAAAA9AF4AP4VNhBYBwAAAAQRQMkAAAA3EvsBAAAAAAAAAAAAAAAAAFgCQPv/
[...]
</binary-object:binary-object>