{"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":192,"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":152,"height":23.400000000000002,"fontSize":18,"fontFamily":1,"text":"Client A","originalText":"Client A","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":268,"y":32.00000000000001,"width":192,"height":82.80000000000001,"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":288,"y":50.000000000000014,"width":152,"height":46.800000000000004,"fontSize":18,"fontFamily":1,"text":"OT Server\n(per doc)","originalText":"OT Server\n(per doc)","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":154.8,"width":192,"height":68,"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":177.10000000000002,"width":152,"height":23.400000000000002,"fontSize":18,"fontFamily":1,"text":"Client B","originalText":"Client B","textAlign":"center","verticalAlign":"middle","containerId":"shape-4","lineHeight":1.3,"autoResize":false,"customData":{"revealStep":3}},{"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-4"],"frameId":null,"roundness":null,"boundElements":[{"type":"text","id":"shape-7"}],"updated":0,"link":null,"locked":false,"id":"shape-6","type":"rectangle","seed":479,"x":36,"y":262.8,"width":553.04742,"height":610.6,"customData":{"revealStep":4}},{"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-4"],"frameId":null,"roundness":null,"boundElements":null,"updated":0,"link":null,"locked":false,"id":"shape-7","type":"text","seed":552,"x":56,"y":280.8,"width":513.04742,"height":574.6,"fontSize":17,"fontFamily":1,"text":"OT with Central Server (Google Docs Model)\n\nServer maintains:\n- Canonical document state\n- Global operation revision number\n- Operation history log\n\nClient maintains:\n- Local document state\n- Pending operations (sent but not yet ACKed)\n- Buffer of unconfirmed local edits\n\nProtocol:\n1. Client applies edit locally (instant feedback)\n2. Client sends op to server with base revision number\n3. Server transforms op against any concurrent ops\nthat happened since that revision\n4. Server applies transformed op, increments revision\n5. Server broadcasts transformed op to all other clients\n6. Server ACKs original client with new revision\n7. Other clients transform received op against their\npending local ops, then apply\n\nKey insight: Server is the single source of truth.\nIt serializes all operations into a total order.\nThis avoids the complexity of peer-to-peer OT.","originalText":"OT with Central Server (Google Docs Model)\n\nServer maintains:\n- Canonical document state\n- Global operation revision number\n- Operation history log\n\nClient maintains:\n- Local document state\n- Pending operations (sent but not yet ACKed)\n- Buffer of unconfirmed local edits\n\nProtocol:\n1. Client applies edit locally (instant feedback)\n2. Client sends op to server with base revision number\n3. Server transforms op against any concurrent ops\nthat happened since that revision\n4. Server applies transformed op, increments revision\n5. Server broadcasts transformed op to all other clients\n6. Server ACKs original client with new revision\n7. Other clients transform received op against their\npending local ops, then apply\n\nKey insight: Server is the single source of truth.\nIt serializes all operations into a total order.\nThis avoids the complexity of peer-to-peer OT.","textAlign":"left","verticalAlign":"middle","containerId":"shape-6","lineHeight":1.3,"autoResize":false,"customData":{"revealStep":4}}],"appState":{"viewBackgroundColor":"#fbfbf8","gridSize":null},"files":{}}