Chart Type for Performance vs Target. Keywords: performance, target, kpi, gauge, goal, threshold, progress. Best Chart: Gauge Chart or Bullet Chart. Secondary Options: Dial, Thermometer. When to Use: Single KPI measured against a defined target or threshold; dashboard summary context. When NOT to Use: No target or benchmark exists; comparing multiple KPIs at once (use bullet chart grid). Data Volume Threshold: Single metric per gauge; for 3+ KPIs use bullet chart grid layout. Color Guidance: Performance: Red → Yellow → Green gradient. Target: marker line. Threshold zones clearly differentiated. Accessibility: AA — Always show numerical value + % of target as text beside chart. Never rely on color position alone.. A11y Fallback: Numerical value + % of target shown as visible text; ARIA live region for real-time updates. Library: D3.js, ApexCharts, Custom SVG. Interactive Level: Hover.