Chart Type for Real-Time Streaming. Keywords: streaming, real-time, ticker, live, velocity, pulse, monitoring. Best Chart: Streaming Area Chart. Secondary Options: Ticker Tape, Moving Gauge. When to Use: Live monitoring dashboards; IoT/ops data updating at ≥1 Hz; user needs current value at a glance. When NOT to Use: Update frequency < 1/min (use periodic-refresh line chart); flashing content without reduced-motion support. Data Volume Threshold: Canvas/WebGL required. Buffer last 60–300s of data. Downsample older data on scroll. Color Guidance: Current pulse: #00FF00 (dark theme) or #0080FF (light theme). History: fading opacity. Grid: dark background. Accessibility: B — Pause/resume control required. Current value as large visible text KPI. Respect prefers-reduced-motion.. A11y Fallback: Pause/resume button required; current value shown as large text KPI; prefers-reduced-motion: freeze animation. Library: Smoothed D3.js, CanvasJS. Interactive Level: Real-time + Pause + Zoom.