1EdTech AccessForAll Meta-data
Information Model

Version 1.0 Final Specification

Copyright © 2004 1EdTech Consortium, Inc. All Rights Reserved.
The 1EdTech Logo is a trademark of 1EdTech Consortium, Inc.
Document Name: 1EdTech AccessForAll Meta-data Information Model
Revision: 12 July 2004


Date Issued:	12 July 2004

IPR and Distribution Notices

Recipients of this document are requested to submit, with their comments, notification of any relevant patent claims or other intellectual property rights of which they may be aware that might be infringed by any implementation of the specification set forth in this document, and to provide supporting documentation.

1EdTech takes no position regarding the validity or scope of any intellectual property or other rights that might be claimed to pertain to the implementation or use of the technology described in this document or the extent to which any license under such rights might or might not be available; neither does it represent that it has made any effort to identify any such rights. Information on 1EdTech's procedures with respect to rights in 1EdTech specifications can be found at the 1EdTech Intellectual Property Rights web page: http://www.imsglobal.org/ipr/imsipr_policyFinal.pdf.

Permission is granted to all parties to use excerpts from this document as needed in producing requests for proposals.

Use of this specification to develop products or services is governed by the license with 1EdTech found on the 1EdTech website: http://www.imsglobal.org/license.html.

The limited permissions granted above are perpetual and will not be revoked by 1EdTech or its successors or assigns.

THIS SPECIFICATION IS BEING OFFERED WITHOUT ANY WARRANTY WHATSOEVER, AND IN PARTICULAR, ANY WARRANTY OF NONINFRINGEMENT IS EXPRESSLY DISCLAIMED. ANY USE OF THIS SPECIFICATION SHALL BE MADE ENTIRELY AT THE IMPLEMENTER'S OWN RISK, AND NEITHER THE CONSORTIUM, NOR ANY OF ITS MEMBERS OR SUBMITTERS, SHALL HAVE ANY LIABILITY WHATSOEVER TO ANY IMPLEMENTER OR THIRD PARTY FOR ANY DAMAGES OF ANY NATURE WHATSOEVER, DIRECTLY OR INDIRECTLY, ARISING FROM THE USE OF THIS SPECIFICATION.

1. Introduction
1.1 Structure of this Document
1.2 Nomenclature
1.3 References

2. Information Model
2.1 Overall Accessibility Data Model
2.2 Primary Class Data Model
2.2.1 primary Class
2.2.2 earl Class
2.2.3 equivalentResource Class
2.3 Equivalent Class Data Model
2.3.1 equivalentFor Class
2.3.2 content Class

3. System Description and Behavior Examples
3.1 Behavior Workflow
3.2 Examples of Meta-data Behaviors
3.2.1 Displaying Captions
3.2.2 Displaying Audio Description
3.2.3 Displaying Sign Language Alternative to Audio

Appendix A - Sources of Input

About This Document
List of Contributors

Revision History

Index

1. Introduction

This document describes the core aspects of the specification and contains parts that are normative for any binding claiming to use this information model. It contains details of: semantics, structure, data types, value spaces, multiplicity, and obligation (i.e., whether mandatory or optional).

Contextual and background information on this specification can be found in the 1EdTech Accessibility Meta-data Overview document [ACCMD, 04d] http://www.imsglobal.org/accessibility/accmdv1p0/imsaccmd_oviewv1p0.html.

1.1 Structure of this Document

The structure of this document is:


2. Information Model	A description of the data structures of the ACCMD specification;
3. System Description and Behavior Examples	Information about the ACCMD system and behaviors;
Appendix A - Sources of Input	A list of documents used in developing this specification.

1.2 Nomenclature


ACCLIP	1EdTech Learner Information Package Accessibility for LIP
CP	1EdTech Content Packaging Specification
DC	Dublin Core
DRI	1EdTech Digital Repositories Interoperability Specification
ICP	1EdTech International Conformance Program
IEEE	Institute of Electronic & Electrical Engineering
LMS	Learning Management System
LO	Learning Object
LOM	Learning Object Metadata (usually used in "IEEE LOM")
LTSC	Learning Technology Standards Committee
VDEX	1EdTech Vocabulary Definition Exchange Specification
W3C	World Wide Web Consortium
XML	Extensible Mark-up Language

1.3 References


[ACCMD, 04b]	1EdTech AccessForAll Meta-data XML Binding v1.0, A.Jackl, 1EdTech Consortium, Inc., July 2004.
[ACCMD, 04c]	1EdTech AccessForAll Meta-data Best Practice and Implementation Guide v1.0, A.Jackl, 1EdTech Consortium, Inc., July 2004.
[ACCMD, 04d]	1EdTech AccessForAll Meta-data Overview v1.0, A.Jackl, 1EdTech Consortium, Inc., July 2004.
[ACCGuide, 02]	1EdTech Guidelines for Developing Accessible Learning Applications v1.0, 1EdTech Consortium, Inc., June 2002.
[ACCLIP, 03]	1EdTech Learner Information Package Accessibility for LIP v1.0, M.Norton, J.Treviranus, 1EdTech Consortium, Inc., June 2003
[IEEE LOM]	IEEE 14.84.12.1 - 2002 Standard for Learning Object Metadata, http://ltsc.ieee.org
[IMSBUND]	Using 1EdTech Content Packaging to Package Instances of LIP and Other 1EdTech Specifications v1.0, B.Olivier, M.McKell, 1EdTech Consortium, Inc., August 2001.
[IMSPLID]	1EdTech Persistent, Location-Independent, Resource Identifier Implementation Handbook v1.0, 1EdTech Consortium, Inc., April 2001.
[RFC 1766]	Tags for the Identification of Languages, http://www.ietf.org/rfc/rfc1766.txt
[RFC 2119]	IETF RFC 2119 - Key words for use in RFCs to Indicate Requirement Levels
[RFC 2396]	IETF RFC 2396 Uniform Resource Identifiers (URI): Generic Syntax
[RFC3066]	RFC 3066, Tags for the Identification of Languages, http://www.ietf.org/rfc/rfc3066.txt
[UDC]	Universal Decimal Classification Scheme, UDC Consortium, http://www.udcc.org/
[ISO 11404]	ISO 11404, Language-independent Datatypes, http://www.iso.ch/cate/d19346.html

2. Information Model

2.1 Overall Accessibility Data Model

Figure 2.1 Overall Accessibility Data Model.


No.	Name	Description	Mult	Data Type
1.	accessibility	Root element that groups the accessibility information about the resource.	1	Container
1.1	resourceDescription	Description of the features of the resource.	1	Container
1.1.1	primary	Primary resource description: the features of the primary resource.	[0..1]	Container
1.1.2	equivalent	Equivalent resource description: description of the features of resource(s) that are equivalents for a particular primary resource.	[0..*]	Container

2.2 Primary Class Data Model

Figure 2.2 Primary Class Data Model.

2.2.1 primary Class


No.	Name	Description	Mult	Data Type	Default Value
1.1.1.1	hasVisual	Indication of whether or not the resource contains visual information.	[0..1]	boolean	-
1.1.1.2	hasAuditory	Indication of whether or not the resource contains auditory information.	[0..1]	boolean	-
1.1.1.3	hasText	Indication of whether or not the resource contains text.	[0..1]	boolean	-
1.1.1.4	hasTactile	Indication of whether or not the resource contains tactile interaction.	[0..1]	boolean	-

2.2.2 earl Class


No.	Name	Description	Mult	Data Type
1.1.1.5	earl		[0..*]	Container
1.1.1.5.1	displayTransformability	Reference to EARL statement of the resource's display transformability.	[0..1]	URI
1.1.1.5.2	controlFlexibility	Reference to EARL statement of the resource's control flexibility.	[0..1]	URI

2.2.3 equivalentResource Class


No.	Name	Description	Mult	Data Type	Value Space	Default Value
1.1.1.6	equivalentResource	Pointer to an equivalent resource (meta-data) of the described resource or parts thereof.	[0..*]	URI

2.3 Equivalent Class Data Model

Figure 2.3 Equivalent Class Data Model.

2.3.1 equivalentFor Class


No.	Name	Description	Mult	Data Type
1.1.2.1	primaryResource	A reference to the primary resource (meta-data) for which the described resource is an equivalent	1	URI
1.1.2.2	primaryFile	A reference to file(s) (meta-data) within the primary resource for which the described resource is an equivalent (if applicable)	[0..*]	URI
1.1.2.3	supplementary	Indication of whether or not the resource is supplementary (as opposed to alternative) to the primary resource	[0..1]	boolean

2.3.2 content Class

(taken from 1EdTech Learner Information Package Accessibility for LIP Information Model v1.0)


No.	Name	Description	Mult	Data Type	Value Space
1.1.2.4	content	The features of the content of the equivalent resource that parallel the ACCLIP specification.	[0..1]	Container
1.1.2.4.1	alternativesToVisual	Visual content presented in a different modality.	[0..1]	Container
1.1.2.4.2	alternativesToText	Textual content presented in a different modality.	[0..1]	Container
1.1.2.4.3	alternativesToAuditory	Auditory content presented in a different modality.	[0..1]	Container
1.1.2.4.4	learnerScaffold	Indicates that the described resource is or contains one or more of the learnerScaffold tools	[0..*]	vocabulary	dictionary calculator noteTaking peerInteraction abacus thesaurus spellChecker homophoneChecker mindMappingSoftware outlineTool

alternativesToVisual Class


No.	Name	Description	Mult	Data Type	Value Space	Default Value
1.1.2.4.1	alternativesToVisual	Visual content presented in a different modality.	[0..1]	Container
1.1.2.4.1.1	audioDescription	Indicates that the described resource is an audio description for the referenced primary resource.	[0..*]	vocabulary	standard expanded	standard
1.1.2.4.1.1.1	xml:lang	Indicates the language of the audio description	1	xml:lang	ISO Language Code	en
1.1.2.4.1.2	altTextLang	Indicates that the described resource contains alternate text in the specified language for the referenced primary resource.	[0..1]	xml:lang	ISO Language Code	en
1.1.2.4.1.3	longDescriptionLang	Indicates that the described resource contains long description text in the specified language for the referenced primary resource.	[0..1]	xml:lang	ISO Language Code	en
1.1.2.4.1.4	colorAvoidance	The use of color in the described resource.	[0..1]	Container

colorAvoidanceClass


No.	Name	Description	Mult	Data Type	Default Value
1.1.2.4.1.4	colorAvoidance	The use of color in the described resource.	[0..1]	Container
1.1.2.4.1.4.1	avoidRed	Indicates that the described resource avoids using red.	[0..1]	boolean	false
1.1.2.4.1.4.2	avoidRedGreen	Indicates that the described resource avoids using red and green together.	[0..1]	boolean	false
1.1.2.4.1.4.3	avoidBlueYellow	Indicates that the described resource avoids using blue and yellow together.	[0..1]	boolean	false
1.1.2.4.1.4.4	avoidGreenYellow	Indicates that the described resource avoids using green and yellow together.	[0..1]	boolean	false
1.1.2.4.1.4.5	avoidOrange	Indicates that the described resource avoids using orange.	[0..1]	boolean	false
1.1.2.4.1.4.6	avoidRedBlack	Indicates that the described resource avoids using red and black together.	[0..1]	boolean	false
1.1.2.4.1.4.7	avoidPurpleGray	Indicates that the described resource avoids using purple and gray together.	[0..1]	boolean	false
1.1.2.4.1.4.8	useMaximumContrastMonochrome	Indicates that the described resource uses maximum contrast monochrome.	[0..1]	boolean	false

alternativesToText Class


No.	Name	Description	Mult	Data Type	Value Space	Default Value
1.1.2.4.2	alternativesToText	Textual content presented in a different modality.	[0..1]	Container
1.1.2.4.2.1	graphicAlternative	Indicates that the described resource contains graphical alternatives for text in the referenced primary resource.	[0..1]			false
1.1.2.4.2.2	signLanguage	Indicates that the described resource contains sign language alternatives, in the specified language, for text in the referenced primary resource.	[0..*]	vocabulary	American-ASL Australian- Auslan Austrian-ASQ British-BSL Danish-DSL French-LSF German-DGS Irish-ISL Italian-LIS Japanese-JSL Malaysian-MSL Mexican-LSM Native-American Netherlands-NGT Norwegian-NSL Quebec-LSQ Russian-RSL Singapore-SLS Spanish-LSE Swedish-SWL other	-

alternativesToAuditory Class


No.	Name	Description	Mult	Data Type	Value Space	Default Value
1.1.2.4.3	alternativesToAuditory	Auditory content presented in a different modality.	[0..1]	Container
1.1.2.4.3.1	captionType	Indicates that the described resource contains a text caption for the referenced primary resource.	[0..*]	Container
1.1.2.4.3.1.1	xml:lang	Indicates the language of the caption	1	xml:lang	ISO Language Code	en
1.1.2.4.3.1.2	verbatim	Indicates that the caption is a verbatim caption. Mutually exclusive with reducedReadingLevel	[0..1]	boolean		true
1.1.2.4.3.1.3	reducedReadingLevel	Indicates that the caption is a reduced reading level caption. Mutually exclusive with verbatim	[0..1]	boolean		false
1.1.2.4.3.1.4	reducedSpeed	Indicates that the caption is a reduced rate level caption.	[0..1]	boolean		false
1.1.2.4.3.1.4.1	captionRate	Indicates the rate of the caption.	1	integer	[1..300]	120
1.1.2.4.3.1.5	enhancedCaption	Indicates that the caption is an enhanced caption.	[0..1]	boolean		false
1.1.2.4.3.2	signLanguage	Indicates that the described resource contains sign language alternatives, in the specified language, for audio in the referenced primary resource.	[0..*]	vocabulary	American-ASL Australian- Auslan Austrian-ASQ British-BSL Danish-DSL French-LSF German-DGS Irish-ISL Italian-LIS Japanese-JSL Malaysian-MSL Mexican-LSM Native-American Netherlands-NGT Norwegian-NSL Quebec-LSQ Russian-RSL Singapore-SLS Spanish-LSE Swedish-SWL other	-

3. System Description and Behavior Examples

We will use an informal approach to modeling behavior in this specification. Due to the relationship of this specification to the Learner Information Package Accessibility for LIP (ACCLIP) specification and the boundaries created in the charter we will limit the scope of the behavioral descriptions.

Correctly implementing the combination of AccessForAll information (from the ACCLIP Specification) and accessibility meta-data from this specification requires handling a set of standard cases in a well-defined way. Our goal is to provide functional interoperability that will support the substitution or augmentation of one resource with another when this is required for accessibility purposes, as prescribed in the user's profile (e.g., the addition of caption text for a hearing-impaired context), thus allowing interoperating systems to work together to serve the needs of learners with disabilities and others who have AccessForAll profiles. This section provides a flowchart that lays out a general strategy for using these two sets of data together, and then provides three specific examples of element values that should cause implementations to behave in specific ways. These examples present a simple form of pseudo code, indicating the specific elements relevant, and the values to test for.

3.1 Behavior Workflow

The following workflow diagram describes an overview of Accessibility behaviors:

A diagram illustrating accessibility behaviors

Figure 3.1 Flowchart of behaviors for interoperability using ACCLIP and ACCMD.

Text description of Figure 3.1: A diagram displaying the behaviors for interoperability using ACCLIP and ACCMD. The diagram is a flow chart displaying the start and end states for systems analyzing a learner's ACCLIP against a primary resource's ACCMD. The steps outlined in the diagram are as follows:

1. The system asks, "Does the primary resource contain a modality in which the learner requires alternatives to?"

1.1. If no, the system displays the primary resource.

1.2. If yes, the system retrieves the list of equivalent resources described in the ACCMD.

1.2.1. The system loops asking on each iteration, "Are there more equivalent resources in the list?"

1.2.1.1. If yes, the system gets the next equivalent and asks, "Does this equivalent resource contain the necessary alternatives in order to meet the user's ACCLIP preferences?"

1.2.1.1.1. If no, the system goes back to 1.2.1.

1.2.1.1.2. If yes, the system asks, "Is the equivalent resource an alternative resource (as opposed to a supplement resource)?"

1.2.1.1.2.1. If yes, it displays the equivalent resource.

1.2.1.1.2.2. If no, the resource must be a supplement resource and is combined with the primary resource and displayed to the user.

1.2.1.2. If no, the system searches the repository for additional resources claiming to be equivalent to the primary resource.

1.2.1.2.1. If any are found, the system loops and follows the behavior in 1.2.1.

1.2.1.2.2. If none are found, the user is warned that the content does not meet his/her content preferences and the original primary resource is displayed.

3.2 Examples of Meta-data Behaviors

3.2.1 Displaying Captions


Step	Element to examine	Test
if primary has audio	resourceDescription.primary.hasAudio	true
and learner requests captions	accessForAll.alternativesToAuditory. captionType	exists
for each equivalent referenced	resourceDescription.primary.equivalentResource	(list)
examine equivalent's meta-data
if equivalent contains captions	resourceDescription.equivalent.content. alternativesToAuditory.captionType	exists
and captions are correct language	accessForAll.alternativesToAuditory. captionType.lang and resourceDescription.equivalent.content. alternativesToAuditory.captionType.lang	equal
and captions are correct type	accessForAll.alternativesToAuditory. captionType.type and resourceDescription.equivalent.content. alternativesToAuditory.captionType.type	equal
if captions are supplementary	resourceDescription.equivalent.supplementary	true
display orig and equiv
else	resourceDescription.equivalent.supplementary	false
display equiv
if none of the equivs have captions	resourceDescription.equivalent.content. alternativesToAuditory.captionType	not exist
search repository for LOs claiming to be equiv to primary	resourceDescription.equivalent. primaryFile	references primary
for each such LO
examine LO's meta-data
if LO contains captions	resourceDescription.equivalent.content. alternativesToAuditory.captionType	exists
and captions are correct language	accessForAll.alternativesToAuditory. captionType.lang and resourceDescription.equivalent.content. alternativesToAuditory.captionType.lang	equal
and captions are correct type	accessForAll.alternativesToAuditory. captionType.type and resourceDescription.equivalent.content. alternativesToAuditory.captionType.type	equal
if captions are supplementary	resourceDescription.equivalent.supplementary	true
display orig and equiv
else	resourceDescription.equivalent.supplementary	false
display equiv
if none of the LOs have captions	resourceDescription.equivalent.content. alternativesToAuditory.captionType	not exist
display orig

3.2.2 Displaying Audio Description

Note: This part of the model does not answer the issue of what if more than one kind of description is available. One could check ACCLIP usage parameters to see which is most preferred, and the implementer must decide how to distinguish between videos and stills.


Step	Element to examine	Test
if primary has visual	resourceDescription.primary.hasVisual	true
and learner requests audio descriptions	accessForAll.alternativesToVisual. audioDescription	exists
for each equivalent referenced	resourceDescription.primary.equivalentResource	(list)
examine equivalent's meta-data
if equivalent contains audio descriptions	resourceDescription.equivalent.content. alternativesToVisual. audioDescription	exists
and audio description is correct language	accessForAll.alternativesToVisual. audioDescription.lang and resourceDescription.equivalent.content. alternativesToVisual. audioDescription.lang	equal
and audio description is correct type	accessForAll.alternativesToVisual. audioDescription.type and resourceDescription.equivalent.content. alternativesToVisual. audioDescription.type	equal
play orig and descriptions
if none of the equivs have audio descriptions	resourceDescription.equivalent.content. alternativesToVisual.audioDescription	not exist
search repository for LOs claiming to be equiv to primary	resourceDescription.equivalent. primaryFile	references primary
for each such LO
examine LO's meta-data
if LO contains audio descriptions	resourceDescription.equivalent.content. alternativesToVisual. audioDescription	exists
and audio description is correct language	accessForAll.alternativesToVisual. audioDescription.lang and resourceDescription.equivalent.content. alternativesToVisual. audioDescription.lang	equal
and audio description is correct type	accessForAll.alternativesToVisual. audioDescription.type and resourceDescription.equivalent.content. alternativesToVisual. audioDescription.type	equal
play orig and descriptions
if none of the equivs have audio descriptions	resourceDescription.equivalent.content. alternativesToVisual.audioDescription	not exist
play orig

3.2.3 Displaying Sign Language Alternative to Audio


Step	Element to examine	Test
if primary has audio	resourceDescription.primary.hasAudio	true
and learner requests sign language	accessForAll.alternativesToAuditory. signLanguage	exists
for each equivalent referenced	resourceDescription.primary.equivalentResource	(list)
examine equivalent's meta-data
if equivalent contains sign language	resourceDescription.equivalent.content. alternativesToAuditory.signLanguage	exists
and sign language is correct language	accessForAll.alternativesToAuditory. signLanguage and resourceDescription.equivalent.content. alternativesToAuditory.signLanguage	equal
if sign language is supplementary	resourceDescription.equivalent.supplementary	true
display orig and equiv
else	resourceDescription.equivalent.supplementary	false
display equiv
if none of the equivs have sign language	resourceDescription.equivalent.content. alternativesToAuditory.captionType	not exist
search repository for LOs claiming to be equiv to primary	resourceDescription.equivalent.equivalentFor. equivalentForFile	references primary
for each such LO
examine LO's meta-data
if LO contains sign language	resourceDescription.equivalent.content. alternativesToAuditory.captionType	exists
and sign language is correct language	accessForAll.alternativesToAuditory. signLanguage and resourceDescription.equivalent.content. alternativesToAuditory.signLanguage	equal
if sign language is supplementary	resourceDescription.equivalent.supplementary	true
display orig and equiv
else	resourceDescription.equivalent.supplementary	false
display equiv
if none of the LOs have sign language	resourceDescription.equivalent.content. alternativesToAuditory.signLanguage	not exist
display orig

Appendix A - Sources of Input

In addition to the use cases, the ACCMD Project Group studied existing applications that currently address or fulfill user needs in the accessibility domain. Below is a sample list of products that enable accessibility. More importantly, the Project Group still needs to develop a methodology for reviewing, evaluating, and incorporating existing specifications and standards in the schema definition work.

These include:

1EdTech Accessibility for Learner Information Package Specification
IEEE Learning Objects Metadata
Dublin Core Metadata Element Set
1EdTech Vocabularies Definition Exchange Specification
1EdTech General Web Services Specification
CEN-ISSS WS-LT Accessibility Properties for Learning Resources (in progress)

About This Document


Title	1EdTech AccessForAll Meta-data Information Model
Editor	Alex Jackl (1EdTech)
Team Co-Leads	Jutta Treviranus (Industry Canada), Anthony Roberts (Industry Canada)
Version	1.0
Version Date	12 July 2004
Status	Final Specification
Summary	This document describes the AccessForAll Meta-data Information Model
Revision Information	12 July 2004
Purpose	This document has been approved by the 1EdTech Technical Board and is made available for adoption.
Document Location	http://www.imsglobal.org/accessibility/accmdv1p0/imsaccmd_infov1p0.html


To register comments or questions about this specification please visit: http://www.imsglobal.org/developers/ims/imsforum/categories.cfm?catid=16

List of Contributors

The following individuals contributed to the development of this document:


Name	Organization
Anastasia Cheetham	ATRC - U. Toronto, Industry Canada
Martyn Cooper	Open University, UK
Andy Heath	Sheffield Hallam University, CEN-ISSS Learning Technologies Workshop APLR project
Alex Jackl	1EdTech Consortium, Inc.
Liddy Nevile	DEST, La Trobe University Australia
Anthony Roberts	Industry Canada
Madeleine Rothberg	WGBH National Center for Accessible Media, USA
Jutta Treviranus	ATRC - U. Toronto, Industry Canada
David Weinkauf	ATRC - U. Toronto, Industry Canada

Revision History


Version No.	Release Date	Comments
Base Document 1.0	02 February 2004	Initial version of the AccessForAll Meta-data Specification.
Public Draft 1.0	20 May 2004	Initial Public Draft version of the AccessForAll Information Model. a) Moved all introduction narrative to Overview document and removed compliance information.
Final Specification 1.0	12 July 2004	This is the formal Final Specification of the 1EdTech AccessForAll Meta-data Information Model.

Index

A
AccessForAll 1, 2, 3
Accessibility 1, 2, 3

B
Behavior 1, 2
Binding 1

D
Dublin Core 1, 2

I
IEEE 1, 2, 3
1EdTech International Conformance Program 1
1EdTech Specifications
AccessForAll Meta-data 1, 2
Content Packaging 1
Digital Repositories Interoperability 1
Learner Information Package 1, 2, 3, 4
Learner Information Package Accessibility for LIP 1, 2, 3, 4, 5
Vocabulary Definition Exchange 1
Interoperability 1, 2, 3

L
LOM 1, 2
LTSC 1

M
Meta-data 1, 2, 3, 4, 5

N
Normative 1

P
Preferences 1
Profile 1

R
Resource 1, 2, 3, 4, 5, 6, 7, 8, 9
Resources 1
RFC 1

S
Schema 1
Standards 1
Structure 1

U
URI 1, 2, 3, 4

V
Vocabulary 1, 2, 3, 4, 5

W
W3C 1

X
XML 1

1EdTech Consortium, Inc. ("1EdTech") is publishing the information contained in this 1EdTech AccessForAll Meta-data Information Model ("Specification") for purposes of scientific, experimental, and scholarly collaboration only.

1EdTech makes no warranty or representation regarding the accuracy or completeness of the Specification.
This material is provided on an "As Is" and "As Available" basis.

The Specification is at all times subject to change and revision without notice.

It is your sole responsibility to evaluate the usefulness, accuracy, and completeness of the Specification as it relates to you.

1EdTech would appreciate receiving your comments and suggestions.

Please contact 1EdTech through our website at http://www.imsglobal.org

Please refer to Document Name: 1EdTech AccessForAll Meta-data Information Model Revision: 12 July 2004

Table of Contents