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Tutorial 5: Wizard Interface

Learn how to use the real-time wizard control interface for Wizard-of-Oz studies.

Objectives

  • Navigate the wizard interface
  • Control robot actions in real-time
  • Make branching decisions
  • Handle trial interruptions

What is the Wizard Interface?

The Wizard Interface is your control center during trials. It provides:

  • Real-time trial monitoring
  • Robot action controls
  • Decision-making tools
  • Intervention capabilities
  • Event logging
┌──────────────────────────────────────────────────────────────┐
│                    WIZARD INTERFACE                         │
├────────────────┬─────────────────────┬──────────────────────┤
│                │                     │                      │
│  Trial         │   Timeline          │   Robot              │
│  Controls      │   Progress          │   Status             │
│                │                     │                      │
│  ┌──────────┐  │  ┌───────────────┐  │  ┌────────────────┐  │
│  │ ▶ Play  │  │  │ 1 → 2 → 3 →  │  │  │ ● Connected    │  │
│  │ ⏸ Pause │  │  │         ↑     │  │  │ Battery: 85%   │  │
│  │ ⏹ Stop  │  │  │     Step 2    │  │  │ Position: (0,0)│  │
│  └──────────┘  │  └───────────────┘  │  └────────────────┘  │
│                │                     │                      │
│  ┌──────────┐  │  Progress: 40%      │  ┌────────────────┐  │
│  │ 📝 Notes │  │  Time: 00:05:23    │  │ Action Panel   │  │
│  │ ⚠ Alert │  │                     │  │                │  │
│  └──────────┘  │                     │  │ [Say Text]     │  │
│                │                     │  │ [Move Robot]   │  │
│                │                     │  │ [Wave]         │  │
│                │                     │  │ [Custom...]    │  │
│                │                     │  └────────────────┘  │
└────────────────┴─────────────────────┴──────────────────────┘

Step 1: Accessing the Wizard Interface

Method 1: From Trials List

  1. Go to Trials in sidebar
  2. Find your scheduled trial
  3. Click Open Wizard

Method 2: Direct URL

/trials/{trialId}/wizard

Method 3: Trial Queue

  1. Go to Wizard Queue
  2. See all pending trials
  3. Click Start on any trial

Step 2: Understanding the Layout

Left Panel: Trial Controls

Control Function
Play/Pause Start or pause trial
Stop End trial early
Notes Add timestamped observations
Alert Send alert to researchers

Center Panel: Timeline

  • Visual Progress: See step progression
  • Current Position: Highlighted current step
  • Navigation: Click to jump to step (if allowed)
  • Time Display: Elapsed and estimated remaining

Right Panel: Robot Control

Status Section:

  • Connection indicator
  • Battery level
  • Position tracking
  • Sensor readings

Action Section:

  • Quick action buttons
  • Custom action builder
  • Action history

Step 3: Controlling the Robot

Quick Actions

Pre-configured robot actions:

Action Description
Say Text Make robot speak
Wave Wave gesture
Look at Me Turn head toward participant
Look Away Turn head elsewhere
Nod Confirmation nod
Shake Head Negation shake

Custom Say Text

  1. Click Say Text
  2. Enter text in popup:
    "Hello! Nice to meet you."
    
  3. Select options:
    • Speed: Normal / Slow / Fast
    • Emotion: Neutral / Happy / Excited
  4. Click Execute
  5. Robot speaks the text

Move Robot

  1. Click Move Robot
  2. Select movement type:
    • Walk Forward/Back
    • Turn Left/Right
    • Move Head
    • Move Arm
  3. Set parameters
  4. Execute

Custom Actions

For advanced control:

  1. Click Custom...
  2. Select action from plugin
  3. Configure parameters
  4. Execute

Step 4: Making Decisions

When the experiment reaches a branching point:

Decision Popup

A popup appears with options:

┌─────────────────────────────────────────────────────────────┐
│ Branch Decision Required                                    │
├─────────────────────────────────────────────────────────────┤
│                                                             │
│  Step: Comprehension Check                                 │
│  Question: "What color was the rock?"                       │
│                                                             │
│  Participant's response: They said "blue" (incorrect)      │
│                                                             │
│  ┌─────────────────────────────────────────────────────┐    │
│  │  ○ Correct Response (Red)                         │    │
│  │    → Robot celebrates                             │    │
│  │                                                    │    │
│  │  ● Incorrect Response (Other)                     │    │
│  │    → Robot gently corrects                        │    │
│  └─────────────────────────────────────────────────────┘    │
│                                                             │
│  [Cancel]                               [Confirm Selection] │
└─────────────────────────────────────────────────────────────┘

Decision Guidelines

  1. Observe participant's actual response
  2. Consider protocol criteria
  3. Select appropriate branch
  4. Confirm selection

After Selection

  • Decision is logged with timestamp
  • Trial continues on selected path
  • Both participant and robot continue

Step 5: Handling Interruptions

Pause Trial

When you need to pause:

  1. Click Pause button
  2. Optionally add reason:
    • Participant needs break
    • Technical issue
    • External interruption
  3. Trial pauses, robot holds position

Resume Trial

  1. Click Play button
  2. Trial resumes from pause point
  3. Pause duration is logged

Stop Trial

For early termination:

  1. Click Stop button
  2. Select reason:
    • Participant fatigue
    • Technical failure
    • Protocol deviation
    • Participant withdrawal
  3. Confirm stop
  4. Partial data is saved

Add Notes

Record observations:

  1. Click Notes button
  2. Enter observation:
    Participant laughed at the robot's gesture.
    
  3. Note is timestamped automatically
  4. Notes appear in event log

Send Alert

Notify researchers:

  1. Click Alert button
  2. Select alert type:
    • Technical issue
    • Safety concern
    • Protocol question
    • Other
  3. Add description
  4. Send alert

Step 6: Monitoring Robot Status

Connection Status

Status Icon Meaning
Connected ● Green Robot responding
Connecting ● Yellow Attempting connection
Disconnected ● Red No robot connection
Error ⚠ Orange Connection error

Battery Monitor

View battery level:

  • Green: > 50%
  • Yellow: 20-50%
  • Red: < 20%

Sensor Display

Real-time sensor readings:

  • Joint positions
  • Touch sensors
  • Sonar distances
  • Camera feed (if available)

Action Queue

See pending/executing actions:

Executing: Say Text "Hello!"
Pending: Move Head (queued)

Step 7: Keyboard Shortcuts

Speed up your workflow:

Key Action
Space Play/Pause toggle
Escape Stop trial
N Add note
A Send alert
1-9 Execute quick action
← → Navigate timeline
↑ ↓ Select branch option

Step 8: Event Logging

All actions are logged automatically:

[14:32:05] Trial started
[14:32:07] Step 1: The Hook
[14:32:08] Action: Say Text "Hello!"
[14:32:11] Action: Move Arm Wave
[14:32:15] Step 2: The Narrative
[14:32:16] Action: Say Text "Once upon a time..."
[14:33:05] Step 3: Comprehension Check
[14:33:06] Action: Say Text "What color was the rock?"
[14:33:28] Wizard Note: "Participant said blue"
[14:33:30] Branch: Incorrect selected
[14:33:31] Step 4b: Correction
[14:33:32] Action: Say Text "Actually, it was red."
[14:34:05] Trial completed

Trial Modes

Observer Mode

For observers (read-only):

  • View trial progress
  • See robot status
  • Cannot execute actions
  • Can add notes

Active Wizard Mode

Full control:

  • Execute actions
  • Make decisions
  • Pause/resume
  • Add notes/alerts

Training Mode

Practice without real data:

  • Simulated robot
  • No data saved
  • Safe to experiment

Best Practices

Before Trial

  • Review experiment protocol
  • Test robot connection
  • Familiarize with action panel
  • Know decision criteria

During Trial

  • Stay focused on participant
  • Make decisions based on observation
  • Document notable events
  • Keep action log clean

After Trial

  • Review event log
  • Add final notes
  • Confirm data saved
  • Prepare for next trial

Troubleshooting

Robot Not Responding

  1. Check connection indicator
  2. Verify network
  3. Check robot power
  4. Restart connection

Actions Not Executing

  1. Check action queue
  2. Verify parameters
  3. Check robot state (not in rest mode)

Decision Popup Not Appearing

  1. Check if step has branches
  2. Verify step type is "conditional"
  3. Contact researcher

Next Steps

Mastered the wizard interface?

  1. Robot Integration - Deep dive into robot control
  2. Data & Analysis - Review trial data
  3. Simulation Mode - Practice without a robot

Previous: Running Trials | Next: Robot Integration