{
  "id": "F31",
  "rulePrefix": "F31",
  "variant": null,
  "ruleType": "w3c-failure",
  "scanScope": "pair-set",
  "synthetic": false,
  "status": "current",
  "title": "Failure of Success Criterion 3.2.4 due to using two different labels for the same function on different web pages within a set of web pages",
  "summary": "using two different labels for the same function on different web pages within a set of web pages",
  "whyItFails": "This page reproduces the F31 failure pattern so auditors can verify detection against 3.2.4.",
  "principles": [
    "understandable"
  ],
  "guidelines": [
    "3.2"
  ],
  "successCriteria": [
    {
      "id": "3.2.4",
      "name": "Consistent Identification",
      "level": "AA",
      "slug": "consistent-identification"
    }
  ],
  "versions": [
    "2.0",
    "2.1",
    "2.2"
  ],
  "automatable": "yes",
  "requires": [
    "html"
  ],
  "isolated": true,
  "pairWith": [
    "F31/p02"
  ],
  "w3c": {
    "understanding": [
      "https://www.w3.org/WAI/WCAG22/Understanding/consistent-identification"
    ],
    "quickref": [
      "https://www.w3.org/WAI/WCAG22/quickref/#consistent-identification"
    ],
    "technique": "https://www.w3.org/WAI/WCAG22/Techniques/failures/F31"
  },
  "specimen": {
    "html": "<nav aria-label=\"Main\">\n  <a href=\"index.html\">Home</a> |\n  <a href=\"products.html\">Products</a> |\n  <a href=\"contact.html\">Contact</a>\n</nav>\n<p>Navigation order on this page: Home, Products, Contact.</p>",
    "css": "",
    "js": "",
    "assets": []
  },
  "expectedFindings": [
    {
      "sc": "3.2.4",
      "outcome": "fail",
      "note": "Specimen demonstrates failure of 3.2.4."
    }
  ],
  "mustNotFlag": [],
  "manualCheck": "Confirm the specimen demonstrates the documented F31 failure in isolation.",
  "generated": {
    "url": "https://wcagfail.patternd.io/specimens/F31/",
    "lastmod": "2026-10-08"
  },
  "multiPageNote": "Failure observable only across: F31, F31/p02"
}