ISO IEC 23001-1-2006 amd2-2008 PDF

Full title and description

ISO/IEC 23001-1:2006/Amd 2:2008 — Information technology — MPEG systems technologies — Part 1: Binary MPEG format for XML — Amendment 2: Conservation of prefixes and extensions on encoding of wild cards. This amendment updates the binary format for XML (BiM) to define how prefixes and namespace/extension information are conserved when wild cards are encoded, clarifying encoder/decoder behaviour and improving interoperability.

Abstract

This amendment (Amd 2:2008) to ISO/IEC 23001-1:2006 specifies normative changes to the Binary MPEG format for XML (BiM) to ensure preservation (conservation) of element/attribute prefixes and extension identifiers when wild cards are encoded. It provides rules and examples that affect serialization and decoding of XML structures in BiM, reduces ambiguity in wildcard handling, and supports backward-compatible implementation guidance for decoders and encoders that process schema-less or schema-partial XML content.

General information

• Status: Published
• Publication date: 27 February 2008
• Publisher: ISO/IEC (ISO/IEC JTC 1/SC 29)
• ICS / categories: 35.040.40 — Coding of audio, video, multimedia and hypermedia information
• Edition / version: Amendment 2 to ISO/IEC 23001-1:2006 (Edition 1, 2006; Amendment 2, 2008)
• Number of pages: 21

Scope

This amendment applies to the Part 1 specification (Binary MPEG format for XML) and defines how prefixes, namespace extensions and related extension markers must be conserved and represented during the encoding and decoding of XML wild cards in BiM streams. It is intended to remove interoperability ambiguities when schema information is incomplete or when wild-card elements/attributes are present, and to ensure consistent reconstruction of XML names and extensions by conformant decoders.

Key topics and requirements

• Normative rules for conservation of element and attribute prefixes when wild cards are encoded in BiM.
• Specification of how extension identifiers and extension-related metadata are carried through binary encoding and preserved at decode time.
• Clarifications to encoder and decoder behaviour to ensure consistent handling of schema-less or partially known schema XML fragments.
• Backwards-compatibility considerations and guidance for interoperable implementation with existing BiM decoders.
• Examples and test cases illustrating wildcard encoding/decoding with preserved prefixes and extensions.

Typical use and users

Implementers of MPEG-related systems that use BiM (Binary MPEG format for XML), codec and middleware developers, multimedia system integrators, test and conformance labs, and standards editors. Typical use cases include compact transport and storage of XML metadata (for example MPEG-7 or MPEG-21 descriptors) where wildcard XML content or dynamic extensions are present and preserving namespace/prefix information is required for correct interpretation.

Related standards

ISO/IEC 23001-1:2006 (core specification — Binary MPEG format for XML); ISO/IEC 23001-1:2006/Amd 1:2007 (conformance and reference software); ISO/IEC 23001-1:2006 Corrigenda; related MPEG systems and metadata standards such as ISO/IEC 15938 (MPEG-7) and ISO/IEC 21000 series (MPEG-21 Binary Format). Implementers should also consider applicable conformance and test documents produced by ISO/IEC JTC 1/SC 29.

Keywords

Binary MPEG format for XML; BiM; ISO/IEC 23001-1; amendment 2; Amd 2; wildcard encoding; prefixes; namespace conservation; extensions; MPEG systems; XML compression; interoperability.

FAQ

Q: What is this standard?

A: It is Amendment 2 (2008) to ISO/IEC 23001-1:2006, a small, published amendment that updates the Binary MPEG format for XML (BiM) specification to define conservation of prefixes and extensions when encoding wild cards.

Q: What does it cover?

A: It covers normative rules and examples that specify how prefixes, namespace markers and extension identifiers must be preserved in the binary encoding and decoding process for wildcard XML elements and attributes in BiM streams, reducing ambiguity and improving interoperability.

Q: Who typically uses it?

A: Developers and vendors of MPEG systems, codec and middleware implementers, multimedia metadata tool authors, test laboratories and anyone implementing BiM encoding/decoding for transport or storage of XML-based metadata (e.g., MPEG-7, MPEG-21).

Q: Is it current or superseded?

A: The amendment was published in February 2008 as part of the 2006 edition lifecycle. It is a published amendment to the 2006 edition; implementers should check the main Part 1 (ISO/IEC 23001-1) lifecycle or national adoption records to see whether a newer edition or further amendments/corrigenda have since been issued in their jurisdiction.

Q: Is it part of a series?

A: Yes — it is Amendment 2 to Part 1 of the ISO/IEC 23001 series (MPEG systems technologies). The Part 1 core document is ISO/IEC 23001-1:2006; the series contains related parts and amendments that address other aspects of MPEG systems technologies.

Q: What are the key keywords?

A: Binary MPEG format for XML, BiM, wildcard encoding, prefix conservation, namespace extensions, MPEG systems, ISO/IEC 23001-1, amendment 2008.