Gate Japanese accessibility in the delivery process

WCAG conformance for Japanese products requires mixed-script, expansion, low-vision and multilingual checks with named ownership before release.

実践ガイダンス

Apply WCAG 2.2 AA through a Japanese delivery matrix rather than translation review alone. Test real Japanese content mixed with Latin text, numerals, symbols, emoji and ruby; preserve meaning and operation under text expansion, zoom, text-spacing overrides and low-vision settings; assign a named accessibility owner who can block release and time-bound every exception.

推奨

Set the page language and mark language changes so assistive technology selects the intended pronunciation
Test representative headings, body copy, forms, tables, dates, names, addresses, errors and controls with mixed Japanese and Latin scripts
Allow line wrapping and content expansion without clipping, overlap, hidden controls or meaning that depends on manual line breaks
Verify zoom, reflow, text-spacing overrides, contrast, forced colors and magnification with low-vision users or documented representative checks
Review localized accessible names, descriptions, status messages, validation errors and reading order with native-language QA
Pair guidance with executable component stories and tests while preserving DADS React's status as samples rather than a conformance claim
Name an accessibility owner for each release and record severity, remediation owner, due date and expiry for every approved exception

非推奨

Approve accessibility from machine translation or automated checks alone
Force Japanese copy into fixed-height or single-line containers designed around English length
Use visual spacing, glyph shape or color as the only cue for language, grouping, status or required input
Assume an imported Japanese component sample makes the product conformant
Waive a release-blocking issue without an accountable owner, user impact, remediation date and expiry

検証契約

Before release, the named owner signs a ja-JP matrix covering mixed-script fixtures, native-language screen-reader and keyboard tasks, 200% text sizing, 400% zoom/reflow, text-spacing overrides, forced colors and low-vision review; automated WCAG checks have no serious/critical failures; localized names, errors and announcements are manually verified; no unexpired release-blocking defect lacks an approved exception record.

根拠リファレンス

実装・検証成果物

リンクされた実装はまだありません。