Implementing Extended Descriptions in Digital Publications
Techniques and best practices for enhancing digital content with extended descriptions, addressing limitations of alt text and improving accessibility for readers. Explore methods to provide comprehensive descriptions, manage features and shortcomings, and optimize the user experience. Gain insights from industry experts on why extended descriptions are essential in digital publishing.
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February 24, 2021 Implementing Extended Descriptions in Digital Publications, Best Practices and Practical Advice Accessible Publishing and Reading Webinars daisy.org/webinars
House Keeping This webinar is recorded. The video, slide deck and any resources will be posted afterwards at daisy.org/webinars Live captioning available: recommended: daisy.org/webinarCC or click on CC in the Zoom controls Use the Q&A feature to submit a question any time. We will turn to questions after the presentations.
Your panel Host: Richard Orme George Kerscher, DAISY Charles LaPierre, Benetech Evan Yamanishi, W. W. Norton & Company
Overview When alt text is not enough 3 Techniques for delivery / shortcomings Comprehensive description follows image Summary / Details - collapsible Links to extended descriptions Demo in HTML / EPUB Publisher perspective Why extended descriptions are required
When Alt Text is Not Enough Images might be pictures, flowcharts, pie charts, infographics, etc. Extended description adds value: when the Reader needs more than is provided by short alt text. when HTML markup helps with the description, e.g. when a table is the best way to communicate when multiple paragraphs are needed. when elements such as quizzes or tables require more information for clarity. when the description is best coming before the item.
Features & Shortcomings Comprehensive Descriptions Comprehensive description immediately follows the image Intrusive and disrupts the flow of the page Cannot skip past the description.
Features & Shortcomings Summary & Details Summary & Details collapsed Hidden until expanded Easy to move past without reading Some Reading Apps do not support the details element
Features & Shortcomings Linked Description Links to extended descriptions at end of book Easy to follow for full description Image reproduced at the end of the book Link back to where you came from Some Assistive Technology does not position you at the correct spot
Demos in HTML & EPUB Comprehensive description follows image (Browser) Summary / Details (Browser) Summary / Details (Bookshelf) - working Summary / Details (Apple Books) - issues Link to EOB / Backlinking (Bookshelf) - working Link to EOB / Backlinking (Thorium) - workaround
Publisher Perspective Optimizing for our customers experience Personalization Progressive enhancement Component architecture Single, standard implementation used everywhere Allows us to focus on the content
Progressive Enhancement Demo Link details Link modal [experimental]
Conformance Requirements WCAG Level A Requirement Will become a requirement in EPUB Accessibility Specification 1.1 European Accessibility Act (Fully Implemented by 2025)
Contact information Charles LaPierre charlesl@benetech.org George Kerscher kerscher@montana.org Evan Yamanishi eyamanishi@wwnorton.com
Resources Get test books and see the results of Reading App testing at: http://www.epubtest.org/ Best Practices for Authoring Extended Descriptions in EPUB http://diagramcenter.org/best-practices-for- authoring-extended-descriptions.html
Wrap up Webinar video, slide deck and links to resources will be posted at: daisy.org/webinars Coming up: March 10th Word Document Accessibility 101
