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GIDEON accessibility features

Comprehensive list accessibility features available on the platform.

The GIDEON web application is built to conform with Web Content Accessibility Guidelines (WCAG) 2.1 and 2.2 Level A/AA/AAA standards, the Revised Section 508 standards, and EN 301 549 requirements. The platform is designed to provide a seamless, barrier-free experience for health sciences professionals and students.

Visual & Display Customization 

To minimize visual fatigue, assist individuals with low vision, and accommodate light sensitivity, GIDEON provides robust display configurations:

  • Native Light and Dark Modes: Users can freely toggle between light and dark viewing modes across the entire application to adjust foreground and background colors.
  • Enhanced Text Contrast: Text and images of text maintain a high contrast ratio against backgrounds, conforming to AAA-level contrast requirements.
  • Fluid Layout Reflow: The platform is built using responsive web design principles. Content reflows seamlessly when zoomed up to 400% on a standard browser viewport without requiring horizontal scrolling or losing functionality.
  • Text Resizing: Text can be easily magnified up to 200% using standard browser zoom layouts or keyboard commands without losing content or functionality.
  • Readability Layouts: Text across the platform is consistently left-aligned rather than justified, utilizing line, paragraph, and letter spacing optimized for maximum readability.

Inclusive Map Layouts & Color Perception 

Data insights within GIDEON’s Visualize module and embedded components do not rely on color alone:

  • Accessible Map Schemes: While standard interactive maps utilize a "traffic light" data scheme, alternative high-contrast color palettes are available specifically to support colorblind users.
  • Textual Substitutions: Where graphic markers are heavily utilized to create interactive outbreak maps, all underlying information is simultaneously available in a textual list format.
  • Dedicated Legends: All colors used in map visualizations are explicitly defined and explained in local, easy-to-read text legend panels.

Keyboard Navigation & Interaction Control

The entire GIDEON platform is fully functional without a mouse, using standard system keyboard commands:

  • Standard Navigation Sequences: Progression through all elements sequentially and logically is achieved using standard Tab and Shift + Tab controls.
  • Activation & Controls: Interactive components, such as buttons, links, and checkboxes, are engaged using Enter or the Spacebar. Pop-ups and tooltips can be closed immediately using the Esc key.
  • High-Contrast Focus Indicators: A distinct, high-contrast rectangular outline clearly tracks the currently active component when navigating via keyboard. Focused elements always remain fully visible and are never obscured by other layers.
  • Interactive Canvas Workarounds: In complex visual tools, such as the Lab module's Decision Tree, complex pointer actions like drag-and-drop can be fully replicated using standard Tab and Enter key combinations.
  • Bypass Blocks: Hyperlinks are embedded across pages, enabling keyboard users to skip directly over repetitive blocks of content straight to the main text.

Interoperability with Assistive Technologies

GIDEON uses clean, semantic programmatic structures to ensure complete compatibility with assistive technologies like screen readers:

  • Programmatic Structural Markup: All pages are logically structured using clean HTML headings, labels, and roles to clearly map out relationships for text-to-speech tools.
  • Descriptive ARIA Labels: Non-text components, buttons without visible textual descriptors, and ambiguous system icons utilize explicit aria-describedby or aria-label tags to communicate their actual purpose.
  • Search Auto-Suggestions: Dynamic search suggestions and lookup entries are programmatically indexed, instantly communicating changes to screen readers.
  • Predictable Focus Stability: Elements never unexpectedly shift context simply by receiving focus. Error messages and system status strings appear as plain text, notifying individuals without forcefully interrupting the active workflow.
  • Abuse Protection Adjustments: Automated security verification is implemented via Google reCAPTCHA v3. This runs invisibly under normal parameters without challenging visual puzzles and contains built-in accessibility adjustments for the response fields.

Technical Support and Alternate Documentation

In compliance with Section 508 and EN 301 549 expectations:

  • Accessible Digital Support: All official technical help, product documentation, and support ticketing paths are housed online in digital formats that adhere fully to WCAG Level AA standards.
  • Alternate File Formats: Upon request, support materials and platform documentation can be supplied in alternative accessible formats, such as large print layouts or accessible PDFs.
  • Trained Support Specialists: GIDEON’s customer service staff are directly trained to address compatibility questions, troubleshoot user setup obstacles, and communicate through telecommunications relay services.