{"type":"excalidraw","version":2,"source":"https://AwesomeSystemDesign.dev","elements":[{"angle":0,"strokeColor":"#6577aa","backgroundColor":"#eef1fc","fillStyle":"solid","strokeWidth":1.5,"strokeStyle":"solid","roughness":0.7,"opacity":100,"version":1,"versionNonce":1,"isDeleted":false,"groupIds":["step-1"],"frameId":null,"roundness":null,"boundElements":[{"type":"text","id":"shape-1"}],"updated":0,"link":null,"locked":false,"id":"shape-0","type":"rectangle","seed":41,"x":36,"y":32,"width":257.37844,"height":68,"customData":{"revealStep":1}},{"angle":0,"strokeColor":"#394557","backgroundColor":"transparent","fillStyle":"solid","strokeWidth":1.5,"strokeStyle":"solid","roughness":0.7,"opacity":100,"version":1,"versionNonce":1,"isDeleted":false,"groupIds":["step-1"],"frameId":null,"roundness":null,"boundElements":null,"updated":0,"link":null,"locked":false,"id":"shape-1","type":"text","seed":114,"x":56,"y":54.3,"width":217.37844,"height":23.400000000000002,"fontSize":18,"fontFamily":1,"text":"Signal | Weight | Effect","originalText":"Signal | Weight | Effect","textAlign":"center","verticalAlign":"middle","containerId":"shape-0","lineHeight":1.3,"autoResize":false,"customData":{"revealStep":1}},{"angle":0,"strokeColor":"#628572","backgroundColor":"#edf5ee","fillStyle":"solid","strokeWidth":1.5,"strokeStyle":"solid","roughness":0.7,"opacity":100,"version":1,"versionNonce":1,"isDeleted":false,"groupIds":["step-2"],"frameId":null,"roundness":null,"boundElements":[{"type":"text","id":"shape-3"}],"updated":0,"link":null,"locked":false,"id":"shape-2","type":"rectangle","seed":187,"x":333.37843999999996,"y":32,"width":390,"height":293.40000000000003,"customData":{"revealStep":2}},{"angle":0,"strokeColor":"#394557","backgroundColor":"transparent","fillStyle":"solid","strokeWidth":1.5,"strokeStyle":"solid","roughness":0.7,"opacity":100,"version":1,"versionNonce":1,"isDeleted":false,"groupIds":["step-2"],"frameId":null,"roundness":null,"boundElements":null,"updated":0,"link":null,"locked":false,"id":"shape-3","type":"text","seed":260,"x":353.37843999999996,"y":50,"width":350,"height":257.40000000000003,"fontSize":18,"fontFamily":1,"text":"% seats sold in section | High |\n>80% sold → price +20%\nTime to event | Medium | <48h →\nprice +15%\nDemand velocity | High | 500\nholds/min → +25%\nDay of week | Low | Weekend → +5%\nSimilar events nearby | Low |\nCompeting event → -5%\nWaitlist length | Medium | Waitlist\n>1K → +10%","originalText":"% seats sold in section | High |\n>80% sold → price +20%\nTime to event | Medium | <48h →\nprice +15%\nDemand velocity | High | 500\nholds/min → +25%\nDay of week | Low | Weekend → +5%\nSimilar events nearby | Low |\nCompeting event → -5%\nWaitlist length | Medium | Waitlist\n>1K → +10%","textAlign":"center","verticalAlign":"middle","containerId":"shape-2","lineHeight":1.3,"autoResize":false,"customData":{"revealStep":2}},{"angle":0,"strokeColor":"#a68a53","backgroundColor":"#fff7e6","fillStyle":"solid","strokeWidth":1.5,"strokeStyle":"solid","roughness":0.7,"opacity":100,"version":1,"versionNonce":1,"isDeleted":false,"groupIds":["step-3"],"frameId":null,"roundness":null,"boundElements":[{"type":"text","id":"shape-5"}],"updated":0,"link":null,"locked":false,"id":"shape-4","type":"rectangle","seed":333,"x":36,"y":365.40000000000003,"width":572.5811,"height":500.1,"customData":{"revealStep":3}},{"angle":0,"strokeColor":"#394557","backgroundColor":"transparent","fillStyle":"solid","strokeWidth":1.5,"strokeStyle":"solid","roughness":0.7,"opacity":100,"version":1,"versionNonce":1,"isDeleted":false,"groupIds":["step-3"],"frameId":null,"roundness":null,"boundElements":null,"updated":0,"link":null,"locked":false,"id":"shape-5","type":"text","seed":406,"x":56,"y":383.40000000000003,"width":532.5811,"height":464.1,"fontSize":17,"fontFamily":1,"text":"Dynamic Pricing Engine\n\nBase price: set by organizer per pricing tier\n\nDynamic adjustments (real-time):\n\nPrice formula:\ndynamic_price = base_price × demand_multiplier\n× scarcity_multiplier\n× time_multiplier\n\nConstraints:\n• Floor price: never below base_price × 0.5\n• Ceiling price: never above base_price × 3.0\n• Price locked once seat is held (no change during checkout)\n• Price changes in $5 increments (avoid penny-level chaos)\n\nImplementation:\n• Pricing service recalculates every 60 seconds\n• Prices cached in Redis per (event_id, section)\n• Price at time of hold is locked in the hold record","originalText":"Dynamic Pricing Engine\n\nBase price: set by organizer per pricing tier\n\nDynamic adjustments (real-time):\n\nPrice formula:\ndynamic_price = base_price × demand_multiplier\n× scarcity_multiplier\n× time_multiplier\n\nConstraints:\n• Floor price: never below base_price × 0.5\n• Ceiling price: never above base_price × 3.0\n• Price locked once seat is held (no change during checkout)\n• Price changes in $5 increments (avoid penny-level chaos)\n\nImplementation:\n• Pricing service recalculates every 60 seconds\n• Prices cached in Redis per (event_id, section)\n• Price at time of hold is locked in the hold record","textAlign":"left","verticalAlign":"middle","containerId":"shape-4","lineHeight":1.3,"autoResize":false,"customData":{"revealStep":3}}],"appState":{"viewBackgroundColor":"#fbfbf8","gridSize":null},"files":{}}