Decision: DS Worker Lock-On Process

Quick Summary

Should DS (Direct Supervision) workers use QR codes or manual lock-on processes, considering their supervision requirements and potential QR code possession?

Context

Workers requiring Direct Supervision (DS) represent a special category in the lock-on system that creates tension between efficiency and supervision requirements.

Current State:

• DS workers are defined as requiring direct supervision and may not be independently competent
• QR code system exists for rapid worker authentication and lock-on
• Manual lock-on process exists with supervisor oversight and verification
• Technically possible for DS workers to possess QR codes from previous competency assessments
• No current policy for handling DS workers with QR codes

Business Context:

• DS designation indicates current need for supervision regardless of historical competency
• Business constraint: QR code possession indicates competency at time of QR generation
• Supervision provides opportunity for real-time competency and safety assessment
• Balance needed between operational efficiency and supervision requirements
• Clear responsibility model needed for supervisor oversight of DS workers

Technical Context:

• QR codes enable rapid, autonomous lock-on process
• Manual processes provide structured supervisor-worker interaction
• System needs to handle DS workers who may possess valid QR codes
• Different lock-on processes may require different audit trails

Decision Required

How should DS workers be locked on to the system, particularly when they possess QR codes that technically enable autonomous lock-on?

Success Criteria

What does a good decision look like?

• [ ] Ensures direct supervision occurs for workers who require it
• [ ] Maintains clear supervisor responsibility for DS worker verification
• [ ] Provides consistent process regardless of DS worker's QR possession
• [ ] Supports real-time competency assessment by qualified supervisors
• [ ] Creates appropriate audit trail for DS worker lock-on
• [ ] Balances supervision requirements with operational efficiency
• [ ] Prevents autonomous lock-on by workers requiring supervision

Options

Option 1: Manual Lock-On Only for DS Workers

Description: DS workers must use manual lock-on process with supervisor verification, even if they possess QR codes. QR codes may be displayed for reference but do not enable autonomous lock-on.

Analysis

Pros:

• Ensures direct supervision occurs at critical safety moment of lock-on
• Provides structured framework for supervisor-worker safety interaction
• Maintains supervisor responsibility regardless of historical competency data
• Supports real-time assessment of worker readiness and competency
• Creates consistent supervision process for all DS workers
• Prevents autonomous lock-on by workers designated as requiring supervision

Cons:

• Manual verification takes longer than QR-based lock-on
• DS workers cannot lock-on without supervisor presence (dependency)
• System complexity requiring detection and routing logic for DS workers
• May create bottlenecks if supervisors unavailable

Risks:

• Supervisor unavailability blocks DS worker operations - Mitigation: Multiple supervisor availability, alternative supervision arrangements
• Process overhead reduces operational efficiency - Mitigation: Streamlined manual verification process
• Complex detection logic introduces system errors - Mitigation: Thorough testing and clear business rules

Implementation Effort: 3-4 weeks (DS detection, manual process routing, supervisor verification UI) Maintenance Overhead: Medium (DS detection rules, supervisor workflow maintenance)

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Option 2: QR Code Autonomy with Supervisor Override

Description: Allow DS workers to use QR codes for autonomous lock-on but require supervisor approval/override for final activation.

Analysis

Pros:

• Maintains QR efficiency while preserving supervisor control
• Flexible approach accommodating both supervision and efficiency
• Supervisor retains final decision-making authority
• QR data provides competency information for supervisor assessment
• Preserves QR system investment for DS workers

Cons:

• Creates complex interaction pattern between autonomous and supervised processes
• Unclear responsibility model (worker autonomous vs supervisor responsible)
• May confuse field operations with hybrid workflow
• Potential for workers to proceed without proper supervisor oversight
• Complex implementation requiring approval workflows

Risks:

• Ambiguous responsibility leads to oversight gaps - Mitigation: Clear process definition, but inherently complex
• Workers bypass supervisor approval - Mitigation: Technical controls, but adds complexity
• Confusion about when supervision required - Mitigation: Training, but process remains complex

Implementation Effort: 5-6 weeks (QR autonomous flow, supervisor approval system, hybrid workflow UI) Maintenance Overhead: High (complex approval workflows, responsibility boundary management)

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Option 3: QR Code Use for All Workers Including DS

Description: Allow DS workers to use QR codes autonomously like any other worker, trusting QR competency validation regardless of DS designation.

Analysis

Pros:

• Consistent QR process for all workers regardless of designation
• Maximum operational efficiency for DS workers with QR codes
• Simple implementation with no special DS handling
• Leverages existing QR competency validation system
• No supervisor dependency for DS workers with QR codes

Cons:

• Bypasses supervision requirement that defines DS designation
• Eliminates real-time competency assessment opportunity
• Contradicts business rule that DS workers require supervision
• May create safety risks if DS designation indicates current incompetence
• Undermines supervisor responsibility for DS worker oversight

Risks:

• Safety incidents due to unsupervised DS workers - Mitigation: Review DS designation criteria, but conflicts with core DS concept
• Regulatory non-compliance with supervision requirements - Mitigation: Process documentation, but may not address regulatory intent
• Confusion about DS designation purpose - Mitigation: Training, but doesn't resolve fundamental conflict

Implementation Effort: Minimal (no changes to current QR system) Maintenance Overhead: Low (no additional DS-specific processes)

Constraints & Requirements

Must Have

• Compliance with DS supervision requirements and business rules
• Clear supervisor responsibility for DS worker verification
• Appropriate safety oversight for workers requiring supervision
• Consistent audit trail for DS worker lock-on verification
• Integration with existing competency and QR code systems

Should Have

• Reasonable operational efficiency for DS worker lock-on
• Clear process understanding for field operations
• Support for emergency and time-critical scenarios
• Flexibility for different supervision arrangements

Must Not

• Allow autonomous lock-on by workers designated as requiring supervision
• Create ambiguous responsibility between supervisor and worker
• Undermine the fundamental purpose of DS designation
• Create safety risks through inadequate supervision

Research & Evidence

Completed Research

• [x] DS designation definition - Result: Workers requiring direct supervision, may not be independently competent
• [x] QR code competency model - Result: QR possession indicates competency at time of generation
• [x] Supervision business rules - Result: DS workers require oversight regardless of historical competency
• [x] Current manual process - Result: Structured verification with supervisor interaction

Outstanding Research

• [ ] Field operations feedback on DS worker supervision practices
• [ ] Frequency of DS workers possessing QR codes
• [ ] Supervisor availability and capacity for DS worker verification
• [ ] Regulatory requirements for direct supervision documentation

Evidence & Data

• DS designation specifically indicates need for supervision
• QR codes represent historical competency validation
• Business processes require supervisor oversight for DS workers
• Safety incidents require clear responsibility and audit trail

Stakeholders & RACI

Role	Person/Team	Responsible	Accountable	Consulted	Informed
Decision Maker	Product Owner		✅
Safety Manager	Safety Team	✅
Field Operations	RPOs & Site Protectors	✅
Technical Lead	Development Team	✅
Compliance Team	Legal/Compliance			✅
Implementation Team	Development Team				✅

Impact Assessment

Blocked Items

• DS worker workflow implementation awaits process decision
• Supervisor verification UI design depends on chosen approach
• QR code system integration for DS workers requires process clarity

Affected Components

• Worker Management Service - Impact: DS detection and routing logic (Option 1,2)
• QR Code Validation - Impact: DS worker handling and override logic
• Manual Lock-On UI - Impact: Supervisor verification workflow enhancements
• Audit System - Impact: DS worker lock-on audit trail implementation
• Permission System - Impact: Supervisor permission validation for DS processes

Timeline Impact

• If decided by deadline: Can proceed with DS worker workflow implementation
• If delayed by 1 week: Minor impact on worker management development
• If delayed by 1 month: Blocks DS worker features and supervisor training

Decision Log

Date	Update	Author
2025-09-09	Decision created based on DS worker QR code handling questions	Simon + Claude

Next Actions

Immediate (Next 3 Days)

• [ ] Review DS designation criteria and supervision requirements with Safety Team
• [ ] Validate supervisor responsibility model with Field Operations
• [ ] Assess current DS worker QR possession scenarios

Short Term (Next 2 Weeks)

• [ ] Consult with Compliance Team on supervision documentation requirements
• [ ] Survey field operations on DS supervision practices and preferences
• [ ] Evaluate technical implementation options for chosen approach
• [ ] Make final decision

Decision Meeting

• Scheduled: [To be scheduled]
• Attendees: Product Owner, Safety Manager, Field Operations Representatives (RPO & Site Protector), Technical Lead
• Agenda: Review DS supervision requirements, assess process options, make decision

References & Links

Requirements

• [To be linked]: DS worker supervision requirements
• [To be linked]: Supervisor responsibility requirements
• [To be linked]: Worker competency assessment requirements

Specifications

• [To be linked]: Manual lock-on process specification
• [To be linked]: DS worker workflow specification

Related Decisions

• ADR-010: QR Code Security and Trust Model (establishes QR competency validation model)
• ADR-011: Worker Competency Requirements for Lock-On (defines DS competency framework)
• ADR-012: Competency Verification UI and User Experience (defines verification UI for DS workers)

Decision Outcome

To be filled when decision is made

Final Decision: [Decision made]
Rationale: [Why this decision was made]
Decision Date: [Date]