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Web Accessibility A Foundation for Research

:	John Karat, Jean Vanderdonckt, Gregory Abowd, Gaëlle Calvary, John Carroll, Gilbert Cockton, Mary Cz
:	Simon Harper, Yeliz Yesilada
:	Web Accessibility A Foundation for Research
:	Springer-Verlag
:	9781848000506
:	1
:	CHF 85.50
:

:	Naturwissenschaft
:	English

:	364
:	Wasserzeichen/DRM
:	PC/MAC/eReader/Tablet
:	PDF

Covering key areas of evaluation and methodology, client-side applications, specialist and novel technologies, along with initial appraisals of disabilities, this important book provides comprehensive coverage of web accessibility. Written by leading experts in the field, it provides an overview of existing research and also looks at future developments, providing a much deeper insight than can be obtained through existing research libraries, aggregations, or search engines.

	Acknowledgments	7
	Contents	9
	Contributors	11
	Introduction	15
	Part 1: Understanding Disabilities	21
	Visual Impairments	22
	1 Introduction: The Physiological Basis of Visual Perception	22
	1 Formation of the Retinal Image	23
	1 Neurological Function in the Retina	25
	2 Overview: Functional Requirements for Visual Perception	25
	3 Discussion: Functionality Restrictions in Visual Disorders	27
	4 Approaches to Enhance Human-Computer Interaction	28
	5 Emerging Solutions	30
	6 Conclusions	31
	References	31
	Cognitive and Learning Impairments	34
	1 Introduction	34
	2 Overview	35
	3 Discussion	37
	4 Future Directions	39
	5 Author s Opinion of the Field	40
	References	41
	Hearing Impairments	44
	1 Introduction	44
	1.3 Models of Hearing Impairment	44
	1.3 Demographics on Hearing Impairments	46
	1.3 Legal Perspective	46
	2 Deaf People and Sign Language	47
	2.1 Sign Language	47
	2.2 Historical Perspective - Education	47
	2.3 Historical Perspective - Technology	49
	3 Current Web Access Technology	50
	3.1 Embedded Video and Captioning	50
	3.2 Captioning Services	51
	3.3 Access Using Sign Language	51
	4 Future Research Directions	52
	5 Authors Opinion of the Field	53
	References	54
	Part 2: Evaluation and Methodologies	78
	Physical Impairment	56
	1 Introduction	56
	1.3 Musculoskeletal Disorders	57
	1.3 Movement Disorders	58
	1.3 Prevalence of Dexterity Impairments	59
	1.3 Co-occurrence of Dexterity and Other Impairments	59
	2 Discussion	60
	2.1 Social and Economic Significance	60
	2.2 Alternative Input Mechanisms	61
	2.3 Effect of Dexterity Impairments on Technology and Web Access	61
	3 Future Directions	63
	4 Author s Opinion of the Field	64
	References	64
	Ageing	66
	1 Introduction	66
	2 Physical Changes	67
	2.1 Vision	67
	2.1.1 Age-Related Macular Degeneration (AMD)	68
	2.1.2 Cataracts	68
	2.1.3 Presbyopia	69
	2.1.4 Glaucoma	69
	2.2 Hearing	70
	2.3 Psychomotor	70
	3 Cognitive Changes	71
	3.1 Attention	71
	3.2 Memory	72
	4 Behavioural Changes	73
	5 Author s Opinion of the Field	74
	6 Future Directions	74
	References	75
	Web Accessibility and Guidelines	80
	1 Introduction	80
	2 Overview	82
	2.1 Device Independence	85
	2.2 Web Interaction	86
	2.3 Adaptation and Coping - Key Components of Disabled Interaction	87
	3 Discussion	87
	4 Future Directions	89
	4.1 Web Content Accessibility Guidelines (Version 2)	90
	4.2