{
  "schema_version": "1.0",
  "title": "Universal Interface Matrix",
  "principle": "Every person receives more than one safe way to enter, understand, respond, create, connect, pause, leave, and return.",
  "applies_to": [
    "websites",
    "private family spaces",
    "messages and files",
    "events and buildings",
    "education and worship",
    "support and caregiving",
    "forms and institutions",
    "emergencies and recovery",
    "offline and low-technology environments"
  ],
  "human_actions": [
    "enter",
    "orient",
    "understand",
    "choose",
    "respond",
    "create",
    "connect",
    "ask for help",
    "pause",
    "leave",
    "withdraw consent",
    "return",
    "repair"
  ],
  "layers": [
    {
      "id": "movement-and-body",
      "name": "Movement, reach, stamina, pain and body variation",
      "needs": ["wheelchair and mobility access", "one-hand and no-hand operation", "large targets", "rest and pacing", "seated and standing choices", "temporary injury support"],
      "equivalents": ["keyboard", "switch", "voice", "touch", "pointer", "caregiver-assisted input", "offline human assistance"]
    },
    {
      "id": "vision-and-light",
      "name": "Blindness, low vision, color, contrast, glare and light sensitivity",
      "needs": ["semantic structure", "descriptions", "magnification", "high contrast", "non-color cues", "adjustable lighting", "tactile or spoken equivalents"],
      "equivalents": ["screen reader", "braille", "audio", "large print", "tactile map", "human description"]
    },
    {
      "id": "hearing-and-sound",
      "name": "Deafness, hearing variation, auditory processing and noisy spaces",
      "needs": ["captions", "transcripts", "visual alerts", "sign-language pathways", "volume independence", "quiet-space alternatives"],
      "equivalents": ["text", "caption", "sign", "vibration", "visual cue", "written summary"]
    },
    {
      "id": "speech-and-expression",
      "name": "Speech variation, nonspeaking communication and expressive access",
      "needs": ["AAC compatibility", "typing", "symbols", "gesture", "recorded messages", "extra response time", "no forced speech"],
      "equivalents": ["voice", "text", "picture", "symbol", "gesture", "trusted communication partner"]
    },
    {
      "id": "cognition-and-neurodiversity",
      "name": "Attention, memory, executive function, learning, intellectual and neurodivergent access",
      "needs": ["one step at a time", "plain language", "examples", "repetition", "predictable layout", "save and resume", "low-distraction mode", "no time pressure"],
      "equivalents": ["short path", "guided path", "visual schedule", "read aloud", "human guide", "printable steps"]
    },
    {
      "id": "language-and-literacy",
      "name": "Language, literacy, numeracy, signed language and writing-system access",
      "needs": ["BCP 47 language identity", "right-to-left and complex scripts", "plain-language version", "translation review status", "icons with words", "number explanations", "local language ownership"],
      "equivalents": ["original language", "translation", "transliteration", "sign", "audio", "picture", "human interpreter"]
    },
    {
      "id": "age-and-development",
      "name": "Children, adolescents, adults, elders and changing development",
      "needs": ["age-respectful language", "child choice", "guardian support without impersonation", "adult autonomy", "elder access", "growth and handover paths"],
      "equivalents": ["self-directed", "supported", "co-created", "guardian-assisted", "trusted-circle assisted"]
    },
    {
      "id": "trauma-and-emotional-safety",
      "name": "Trauma, distress, grief, fear, sensory overload and emotional safety",
      "needs": ["content warnings", "pause and leave", "no surprise publication", "calm mode", "private-first flow", "trusted help", "non-punitive repair"],
      "equivalents": ["skip", "hide", "mute", "block", "leave", "save for later", "ask a trusted person"]
    },
    {
      "id": "culture-faith-and-identity",
      "name": "Culture, faith, conscience, family, gender and identity",
      "needs": ["self-description", "name and pronoun choice", "faith and non-faith access", "cultural review", "no forced disclosure", "community-specific forms without exclusion"],
      "equivalents": ["private identity", "room-specific identity", "public identity", "anonymous or pseudonymous presence"]
    },
    {
      "id": "technology-and-connectivity",
      "name": "Device, bandwidth, power, browser and technical access",
      "needs": ["small-screen flow", "low-bandwidth mode", "offline copy", "print", "older-device tolerance", "no required app store", "no required biometric"],
      "equivalents": ["web", "local file", "print", "SMS gateway", "phone call", "in-person help", "portable archive"]
    },
    {
      "id": "environment-and-place",
      "name": "Noise, weather, privacy, transportation, housing and physical place",
      "needs": ["quiet option", "private option", "remote option", "transport-aware timing", "weather and power resilience", "safe physical route"],
      "equivalents": ["home", "community location", "mobile", "asynchronous", "offline", "trusted proxy"]
    },
    {
      "id": "resources-and-cost",
      "name": "Money, time, work, caregiving and resource access",
      "needs": ["free core access", "no pay-to-be-heard", "no engagement tax", "short and long paths", "caregiver scheduling", "shared devices"],
      "equivalents": ["self-service", "supported service", "community help", "downloadable packet", "later completion"]
    },
    {
      "id": "privacy-and-safety",
      "name": "Privacy, surveillance, abuse risk, coercion and personal safety",
      "needs": ["private by default", "audience preview", "device-safe exit", "no location exposure", "no secret administrator reading", "selective disclosure", "revocation"],
      "equivalents": ["private", "trusted circle", "room", "family", "community", "public by explicit choice"]
    },
    {
      "id": "support-and-legal-capacity",
      "name": "Independent action, supported decision-making, caregiving and legal capacity",
      "needs": ["person remains visible", "support role is named", "no silent impersonation", "decision history", "conflict path", "review and appeal"],
      "equivalents": ["independent choice", "supported choice", "shared choice", "temporary emergency action with review"]
    },
    {
      "id": "continuity-succession-and-repair",
      "name": "Growth, incapacity, death, separation, adulthood, recovery and succession",
      "needs": ["trusted-circle quorum", "child-to-adult handover", "guardian replacement", "account recovery without transcript access", "portable archive", "revoke and repair"],
      "equivalents": ["recover", "transfer", "archive", "memorialize", "delete", "continue with new stewards"]
    }
  ],
  "release_rule": {
    "single_path_is_accessible": false,
    "required": "Every important action has at least two usable pathways and a human-help path where life or safety is affected.",
    "proof_required": true
  }
}