WWilson Tsai
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Performance Management × Fairness × Workflow Governance· Archetype: Fairness + multi-stakeholder workflow

Performance Review & Calibration Platform

Executive Problem & Decision SnapshotSanitized Demonstration

The Business Problem

Previous evaluation prototypes relied on browser-side auth and unconditional Z-Score normalization, risking unfair automatic score overrides in a small-sample organization.

The Chosen Decision & Architecture

Built weighted multi-rater assignments, immutable cycle snapshots, mandatory HR calibration rationale, and statistical signals as reference rather than automatic verdicts.

"Use data to make rating differences visible; keep formal calibration explainable and reviewable."
Key Evidence Points
  • 107 verified tests across API, web, and contract layers
  • Role-based visibility: Employee, Reviewer, HR, and GM approver
  • Clear scope separation: Implemented Foundation vs. Designed Calibration

Case Study Detail Route Structure

Full multi-section MDX deep-dive document will be rendered in the next case-study implementation phase.