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सिस्टम डिज़ाइन किट

सिस्टम डिज़ाइन की विधि और दस संदर्भ डिज़ाइन: चैट, न्यूज़ फ़ीड, भुगतान लेजर, रेट लिमिटर, खोज, सूचनाएँ, वीडियो, शेड्यूलर, राइड, सहयोगी संपादन।

चरण 1

विधि और पैटर्न

  1. System Design Document Template

    पूर्ण

    System design at scale – requirements, capacity estimates (KaTeX), API, data model, HLD, deep dives, reliability, cost, trade-offs

  2. Database Design Document Template (ERD and Physical Model)

    पूर्ण

    Database design: DBMS choice, conceptual, logical and physical models, indexes, partitioning, integrity, security, backup, capacity

  3. Multi-Tenancy Design Template (SaaS)

    पूर्ण

    SaaS tenancy model (silo, pool, bridge), tenant context, data isolation, noisy neighbours, lifecycle, residency, cost per tenant

  4. Event Sourcing and CQRS Design Template

    मानक

    Event-sourced service design: fit check, event catalogue, versioning and upcasting, store, projections, idempotency, crypto-shredding

  5. Microservice Specification Template (Service Canvas)

    मानक

    Service canvas: bounded context, owner, APIs and events, data owned, dependencies, SLOs, scaling, config, deploy, observability

  6. Frontend Architecture Document Template

    पूर्ण

    Web frontend architecture: rendering per route, state, data caching, design system, Core Web Vitals budgets, a11y, i18n, CSP, RUM

    Core Web Vitals (web.dev); WCAG 2.2 AA

  7. Mobile App Architecture Template

    मानक

    Mobile app architecture: native vs cross-platform, MVVM/Clean layers, offline sync, secure storage, auth, privacy, releases, testing

चरण 2

संदर्भ डिज़ाइन

  1. Chat System Design Template (Reference Design)

    पूर्ण

    Real-time 1:1 and group chat: WebSocket gateways, per-conversation ordering, fan-out, receipts, offline sync, push, E2EE

  2. News Feed System Design Template (Reference Design)

    पूर्ण

    Social feed: hybrid fan-out on write and read, celebrity threshold, ranking pipeline, feed cache, snapshot pagination, media

  3. Payment Ledger System Design Template (Reference Design)

    पूर्ण

    Payments and double-entry ledger: idempotency keys, payment state machine, PSPs, outbox, reconciliation, audit, PCI DSS scope

  4. Rate Limiter System Design Template (Reference Design)

    पूर्ण

    Distributed rate limiter: token bucket vs window algorithms, atomic Redis scripts, multi-region shares, 429 headers, fail-open

  5. Search Autocomplete System Design Template (Reference Design)

    पूर्ण

    Typeahead: trie/FST/edge n-gram index, popularity and recency ranking, query-log pipeline, edge cache, latency budget, safety

  6. Notification Service System Design Template (Reference Design)

    पूर्ण

    Push, email, SMS and in-app: templates, preferences and opt-out, priority queues, caps, provider failover, retries, dedup

  7. Video Streaming System Design Template (Reference Design)

    पूर्ण

    Video upload and ABR streaming: chunked transcoding, renditions ladder, CMAF HLS/DASH, CDN, DRM note, view counts, storage tiers

  8. Job Scheduler System Design Template (Reference Design)

    पूर्ण

    Distributed scheduler: cron, delayed and one-off jobs, leases and visibility timeouts, fencing, idempotent handlers, retries, DLQ

  9. Ride-Hailing Dispatch System Design Template (Reference Design)

    पूर्ण

    Ride matching: location ingestion, H3/geohash index, batched matching, ETA, trip state machine, single assignment, surge note

  10. Collaborative Editing System Design Template (Reference Design)

    पूर्ण

    Real-time co-editing: OT vs CRDT, sequence CRDT, state-vector sync, presence, offline merge, snapshots and compaction, access