Accessibility

Accessibility is the degree to which software is accessible to people with disabilities. Web Content Accessibility Guidelines (WCAG) 2.0 is a technical standard with the goal of providing a shared standard for web content accessibility. The Web Accessibility Initiative – Accessible Rich Internet Applications (WAI-ARIA) 1.1 is a technical specification that aims to increase the accessibility of rich internet applications with dynamic content. Both standards were developed by the Web Accessibility Initiative of the World Wide Web Consortium (W3C). Geocortex Web conforms with the WCAG 2.0 Level AA standard and aims to follow WAI-ARIA 1.1 keyboard navigation guidelines.

Geocortex Web offers the following accessibility features for end users:

These features can be used together.

Screen Readers

Screen readers read user interface (UI) text aloud, so the user can listen to the page instead of seeing it. They do this by monitoring the position of the mouse pointer and reading the text where the pointer is positioned. It does not matter how the pointer is controlled—the user can navigate using a mouse, the keyboard, a sip-and-puff device, or any other type of navigation device.

Screen readers also provide contextual information for the text being read. For example, if the user navigates to the Show Bookmarks button, a screen reader might say "Show Bookmarks button, collapsed". "Show Bookmarks" is the text that the screen reader reads, and "button, collapsed" is the context provided by the screen reader.

The context is essential. It is how the user knows the current state of the application and what will happen when the item is activated—buttons perform an operation, hyperlinks navigate the browser, checkboxes select or clear a setting, and so on.

In order for a user to use a screen reader with Geocortex Web, the user must have a screen reader installed and running. No additional steps are required. The screen-reading feature of Geocortex Web is tested using the Firefox browser with NVDA (NonVisual Desktop Access) but others may also work.

Keyboard Shortcuts

Keyboard shortcuts allow end users to interact with Geocortex Web using a keyboard instead of a mouse. The current UI component is highlighted with a border, which is blue by default. Keyboard shortcuts do not interfere with or prevent the user from using the mouse—the user can go back and forth between keyboard shortcuts and the mouse.

Geocortex Web uses standard shortcuts to navigate the page and select or activate items.

Accessibility Keyboard Shortcuts

To do this...

Press...

Navigate forward through the page's components

Tab *

Navigate backward through the page's components

Shift+Tab

Navigate within a composite component such as a menu

Arrow keys

Select or activate the current UI component

Enter

Select checkbox, radio button, or toggle

Space Bar

Pan the map (if selected)

Arrow keys

Rotate the map (if selected) anticlockwise / clockwise - 2D only

A / D

Zoom in / out the map (if selected) - 2D only

- / +

Rotate the map (if selected) left / right - 3D only

A / D

Rotate the map (if selected) up / down - 3D only

W / S

Expand / collapse tree in the layer list

Right Arrow / Left Arrow

Jump to first / last cell in the results table

Ctrl+Home / Ctrl+End

Save the app

Ctrl+S

Toggle the Skip Links menu

Alt+Q

* The initial tab operation in a new browser session opens the Skip Links menu, allowing the user to navigate directly to various components.

Skip Links

The Skip Links menu allows the user to navigate directly to various landmark components, saving the user from having to press Tab repeatedly to navigate through each component. To open or close the Skip Links menu, press Alt+Q. Use the up and down arrow keys to select a component and then press Enter to navigate to the component.

© 2019 Latitude Geographics Group Ltd. All Rights Reserved.

Documentation Version 5.3