Add G227: Using the Map Equivalent Purpose Framework for digital geographic maps - #5305
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Add G227: Using the Map Equivalent Purpose Framework for digital geographic maps#5305frastlin wants to merge 3 commits into
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…raphic maps New sufficient General Technique for SC 1.1.1 Non-text Content, proposed in w3c#5124. Registers G227 under Situation B's long text alternative techniques and adds a cspell override for framework, product, and author names used in the technique. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01DQj4BWNa2vNweGzGj4UZsg
…spreadsheet Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01DQj4BWNa2vNweGzGj4UZsg
Convert definition lists to unordered lists with bold lead-ins (the list pattern used throughout existing techniques; no technique uses dl), drop numeric prefixes from description subheadings so generated anchor ids are not digit-leading, and align Expected Results phrasing with the conventional '#N and #M are true.' form. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01DQj4BWNa2vNweGzGj4UZsg
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Closes #5124
This PR adds a new sufficient technique for SC 1.1.1 Non-text Content: using the Map Equivalent Purpose (MEP) Framework to write and evaluate text alternatives for digital geographic maps.
Maps are a common case where authors have little guidance on what a text alternative needs to contain to serve an equivalent purpose. G73, G74, and G92 say where a long description goes and that it needs to convey the same information, but not how to check whether it does for a map. The MEP Framework fills that gap with a testable procedure: inventory the map's features, then check the text alternative against four categories of criteria (Generalized, Spatial Information, Spatial Relationships, and Routes). The criteria come from the two peer-reviewed studies cited in the technique's Resources section, one of which evaluated eight text map representation techniques against the framework.
Changes:
techniques/general/G227.html. The technique number is a placeholder; renumber as needed.understanding/understanding.11tydata.js, which adds it to the Understanding page for SC 1.1.1.The technique includes three examples (two that pass, one that fails) drawn from the cited studies, an eight-step test procedure, and a link to the MEP Framework repository, which hosts the evaluation template and per-criterion results.
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https://claude.ai/code/session_01DQj4BWNa2vNweGzGj4UZsg