BS ISO/IEC 13522-1:1997

0 INTRODUCTION
1 Scope
2 Conformance
3 Normative references
4 Definitions
5 Symbols and abbreviations
SECTION 1: OVERVIEW
6 Main features of this part of ISO/IEC 13522
7 MHEG Engine Assumptions
8 Methodology
SECTION 2: GENERIC UTILITY AND USEFUL DEFINITION MECHANISMS
9 Presentation Mechanism
10 Generic Identification Mechanism
11 Generic Reference Mechanism
12 Generic Value
13 Macro Mechanism
14 Hooks
15 Extensibility
SECTION 3: OVERVIEW OF MHEG CLASSES
16 MHEG Object Classes Overview
17 Structure of MH-Object Class
18 Structure of Action Class
19 Structure of Link Class
20 Structure of Model Class
21 Structure of Script Class
22 Structure of Component Class
23 Structure of Content Class
24 Structure of Multiplexed Content Class
25 Structure of Composite Class
26 Structure of Container Class
27 Structure of Descriptor Class
SECTION 4: COMMON BEHAVIOUR OF MHEG ENTITIES
28 MHEG Entity Behaviour
29 MHEG Entity State Definition
30 Life Cycle of MHEG Entities
31 General Action Mechanisms
32 Common Action Effects and Handling
33 Postpone Behaviour
34 Returnability behaviour
35 Alias Behaviour
36 Extensibility Behaviour
SECTION 5: BEHAVIOUR OF MHEG OBJECTS
37 Availability Behaviour of MHEG Objects
38 Link Object Activation Behaviour
39 Link Object Abort Behaviour
40 Content Class Generic Value Storage Behaviour
41 Content Class Cope Behaviour
SECTION 6: RT-OBJECTS BEHAVIOUR
42 RT-Objects Availability Behaviour
43 TR-Objects Running Behaviour
44 RT-Script Passing Parameter Behaviour
45 RT-Scripts Termination Behaviour
46 Sockets Presentation and Structural Dynamism
    Behaviour
47 RT-Composite Navigation Behaviour
48 RT-Components RPS Assignment Behaviour
49 RT-Components Perceptability Behaviour
50 RT-Components Temporal Behaviour
51 RT-Components Spatial Behaviour
52 RT-Components Audible Behaviour
53 RT-MUX Stream Choice Behaviour
54 Interaction behaviour
55 RT-Components Style Behaviour
56 RT-Contents Anchor Behaviour
SECTION 7: CHANNELS BEHAVIOUR
57 Channel Availability Behaviour
58 Channel Perceptability Behaviour
59 Channel Presentation Space Behaviour
SECTION 8: CHANNELS & RT-COMPONENTS BEHAVIOUR
60 Channels and RT-Components Events Behaviour
SECTION 9: DETAILED REPRESENTATION OF MHEG OBJECTS
61 MH-Object Class Representation Attributes
62 Action Class Representation Attributes
63 Link Class Representation Attributes
64 Model Class Representation Attributes
65 Script Class Representation Attributes
66 Component Class Representation Attributes
67 Content Class Representation Attributes
68 Multiplexes Content Class Representation Attributes
69 Composite Class Representation Attributes
69 Composite Class Representation Attributes
70 Container Class Representation Attributes
71 Descriptor Class Representation Attributes
72 Behaviours
73 Elementary Sections
Annex A: ASN.1 Notations (Level C)
Annex B: Examples of MHEG Systems
      B.1 Example of an MHEG Engine
      B.2 Application examples
Annex C: Examples of Interfaces to Media Recommendations
and Standards
      C.1 Example of still image content object
      C.2 Example of audio content object
Annex D: Hypertext/Hypermedia Support
      D.1 Introduction
      D.2 Mechanism for Hypertext/Hypermedia
      D.3 An example of interrelationships between
            MHEG and WWW browser
Annex E: Examples of Spatial Behaviours
      E.1 Example 1
      E.2 Example 2
Annex F: Summary of Object Identifiers
Annex G: Index

Defines the coded representation of final-form multimedia and hypermedia information objects for interchanging as units within or across services/applications, using any means of interchange (storage, local area network, wide area telecommunication, broadcast telecommunications or broadcast networks). These objects, known as MHEG objects, specify the structure of a multimedia presentation.

This part of ISO/IEC13522 specifies the coded representation of final-form multimedia and hypermedia information objects that are interchanged as units within or across services and applications, by any means of interchange (e.g. storage, local area network, wide area telecommunication, broadcast telecommunications or broadcast networks). These objects, called MHEG objects, define the structure of a multimedia presentation.

These objects provide the following functionalities:

• final-form representation,

• systems with minimal resources,

• interactivity and multimedia synchronisation,

• real-time presentation,

• real-time interchange,

as a common base for many multimedia and hypermedia applications.

This part of ISO/IEC13522 defines:

• the specifications of the MHEG objects without regard for the underlying representation coded representation,

• the base-coded representation, using the ASN-1 representation.

(Other types of coded representation may be specified in other parts of ISO/IEC13522.)

1.1 Specificity of the scope

Since it is expected that a wide range of recommendations, standards, and using applications will be users of this part of ISO/IEC13522, the scope focuses on the generic structuring aspects. This part of ISO/IEC13522 recognises the semantics implied by the specification of the MHEG objects but does not enforce any semantic interpretation by the using application.

1.2 Issues outside the scope of this part of ISO/IEC13522

The scope excludes any standardisation of models, services, systems, protocols or applications that make use of MHEG objects. Integration of MHEG objects within these models, services, systems, protocols or applications, or interworking, may be defined by other standards.

The coded representation of content data is not in the scope of this part of ISO/IEC13522.