📚 Chapter 7: Phase 4 - Ecosystem Integration

This chapter defines how WIA EDU integrates with other WIA standards and external accessibility frameworks to create a unified assistive technology ecosystem.

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7.1 WIA Ecosystem Overview

The WIA EDU Standard is designed to work seamlessly with the complete WIA assistive technology ecosystem:

┌─────────────────────────────────────────────────────────────────┐
│                     WIA ECOSYSTEM                                │
├─────────────────────────────────────────────────────────────────┤
│                                                                  │
│  ┌─────────────┐                       ┌─────────────┐          │
│  │  WIA EDU    │◄─────────────────────►│   WIA AAC   │          │
│  │ (Education) │                       │(Communication)│         │
│  └──────┬──────┘                       └──────┬──────┘          │
│         │                                     │                  │
│         │         ┌─────────────┐             │                  │
│         └────────►│  Unified    │◄────────────┘                  │
│                   │  Profile    │                                │
│         ┌────────►│  Manager    │◄────────────┐                  │
│         │         └─────────────┘             │                  │
│         │                                     │                  │
│  ┌──────┴──────┐                       ┌──────┴──────┐          │
│  │  WIA BCI    │                       │  WIA Eye    │          │
│  │(Brain-Comp) │                       │   Gaze      │          │
│  └─────────────┘                       └─────────────┘          │
│                                                                  │
└─────────────────────────────────────────────────────────────────┘
        

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7.2 WIA AAC Integration

For learners who use Augmentative and Alternative Communication devices, WIA EDU integrates with WIA AAC to ensure seamless communication in educational contexts.

7.2.1 Profile Linking

// EDU Profile with AAC Link
{
  "profile_id": "EDU-2025-ABCD-1234",
  "wia_integrations": {
    "aac_profile_id": "AAC-2025-EFGH-5678",
    "aac_device_type": "eye_tracker",
    "aac_manufacturer": "Tobii",
    "sync_enabled": true,
    "sync_preferences": {
      "dwell_time": true,
      "vocabulary": false,
      "calibration": true
    }
  }
}

// When learner accesses educational content:
// 1. EDU system retrieves AAC profile
// 2. Applies AAC settings to educational interface
// 3. Syncs timing settings (dwell time affects interaction)
// 4. Ensures content is AAC-compatible

7.2.2 AAC-Compatible Content Requirements

Requirement	Description	Implementation
Scanning Support	Content navigable by switch scanning	Logical tab order, focus indicators
Dwell Selection	Clickable elements support dwell	Large targets, configurable dwell time
Symbol Support	AAC symbols alongside text	Symbol overlay options
Response Methods	Accept AAC device input	Symbol-based answers, voice output

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7.3 WIA BCI Integration

Brain-Computer Interface integration enables learners with severe motor disabilities to access education through direct neural input.

7.3.1 BCI Profile Integration

// EDU Profile with BCI Link
{
  "profile_id": "EDU-2025-ABCD-1234",
  "wia_integrations": {
    "bci_profile_id": "BCI-2025-IJKL-9012",
    "bci_device": "Emotiv EPOC X",
    "bci_control_mode": "steady_state_visual_evoked_potential",
    "sync_enabled": true
  },
  "control_preferences": {
    "input_method": "bci",
    "timing": {
      "extended_time_multiplier": 3.0,
      "response_timeout": 30000
    },
    "bci_settings": {
      "selection_threshold": 0.85,
      "confirmation_required": true,
      "error_correction_enabled": true
    }
  }
}

7.3.2 BCI-Optimized Assessment Design

• Reduced Options: Fewer choices per question (3-4 max)
• Clear Visual Targets: High contrast selection areas
• Confirmation Steps: Verify selection before submission
• Extended Timing: 2-3x normal time allocation
• Fatigue Management: Mandatory breaks, session limits

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7.4 WIA Eye Gaze Integration

7.4.1 Eye Gaze Profile Integration

// EDU Profile with Eye Gaze Link
{
  "profile_id": "EDU-2025-ABCD-1234",
  "wia_integrations": {
    "eye_gaze_profile_id": "GAZE-2025-MNOP-3456",
    "eye_gaze_device": "Tobii Eye Tracker 5",
    "sync_enabled": true
  },
  "control_preferences": {
    "input_method": "eye_gaze",
    "click_settings": {
      "dwell_time_ms": 800,
      "dwell_tolerance_px": 30,
      "blink_activation": false
    }
  }
}

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7.5 AccessForAll PNP Mapping

WIA EDU maps to the ISO/IEC 24751 AccessForAll Personal Needs & Preferences standard:

WIA EDU Field	AccessForAll PNP
display_preferences.screen_reader	displayTransformability.screenReader
display_preferences.magnification	displayTransformability.magnification
display_preferences.high_contrast	displayTransformability.highContrastDisplay
content_preferences.captions	alternativesToAuditory.captions
content_preferences.audio_description	alternativesToVisual.audioDescription
control_preferences.input_method	controlFlexibility.inputDevice

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7.6 Complete Integration Example

// Unified Learner Profile with All Integrations
{
  "profile_id": "EDU-2025-ABCD-1234",
  "schema_version": "1.0.0",

  "learner_info": {
    "name": "Park Jihye",
    "institution_id": "UNIV-001"
  },

  "wia_integrations": {
    "aac_profile_id": "AAC-2025-EFGH-5678",
    "eye_gaze_profile_id": "GAZE-2025-MNOP-3456",
    "sync_enabled": true,
    "last_sync": "2025-01-15T10:00:00Z"
  },

  "display_preferences": {
    "screen_reader": { "enabled": false },
    "magnification": { "enabled": true, "level": 2.0 },
    "text_settings": { "font_size": "large" },
    "color_settings": { "high_contrast": true }
  },

  "control_preferences": {
    "input_method": "eye_gaze",
    "timing": { "extended_time_multiplier": 2.0 },
    "click_settings": {
      "dwell_time_ms": 800,
      "target_size": "x-large"
    }
  },

  "content_preferences": {
    "captions": true,
    "text_to_speech": { "enabled": true }
  },

  "assessment_accommodations": {
    "extended_time": true,
    "time_multiplier": 2.0,
    "breaks_allowed": true,
    "separate_location": false
  }
}

// When this learner accesses a course:
// 1. EDU system loads unified profile
// 2. Syncs with eye gaze calibration from WIA Eye Gaze
// 3. Applies AAC communication settings
// 4. Configures content for eye gaze navigation
// 5. Sets up assessment with 2x time and breaks
// Result: Seamless, personalized learning experience

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7.7 Chapter Summary