Revise word substitution in glossary 'target'

[mitchellevan]

Currently

For the glossary definition of 'target', WCAG has this note:

If two or more targets are overlapping, the overlapping area should not be included in the measurement of the target size, except when the overlapping targets perform the same action or open the same page.

WCAG2ICT has this substitution:

replacing “page” with “non-web document or content presented by software”
...
If two or more targets are overlapping, the overlapping area should not be included in the measurement of the target size, except when the overlapping targets perform the same action or open the same [non-web document or content presented by software].

By removing "page" and replacing it with a phrase that's explicitly "non-web...", it conveys incorrectly that the note would not apply to web links in non-web content.

Examples of pointer targets in non-web content

Examples of pointer targets in documents:

1. Link to a web page (common), or link to a document at a URL (which also meets WCAG's definition of "web page")
2. Perform an action within the current document, e.g. within an interactive PDF
3. Launch a non-web document or application, e.g. files on a corporate network

— 1 is "opening a web page." 2 is "performing an action". 3 could be called "opening a non-web document or software" or "performing an action".

Examples of pointer targets in software:

1. Link to a web page, e.g. product documentation
2. Perform an action within the software, e.g. navigating to a new view or making a change within the current view
3. Open a document, e.g. in the current software
4. Launch another application, e.g. take a photo on Android

— 1 is "opening a web page." 2 is "performing an action". 3 is best called "opening a non-web document". 4 could be called "opening software" or "performing an action".

Proposal

replacing “page” with “content”
...
If two or more targets are overlapping, the overlapping area should not be included in the measurement of the target size, except when the overlapping targets perform the same action or open the same [content].

This has the advantage of simplicity, without trying to list all the scenarios. Launching an application is clearly either "performing an action" or "opening content"; either way we've covered all the bases.

[ChrisLoiselle]

@mitchellevan nice catch. @maryjom , let me know if you want me to start the edits prior to the meeting this week or if you'd like to review in meeting. Thanks!