Requirements and Constraints A compliance reporting system automates the collection, aggregation, and delivery of evidence required by regulatory frameworks such […]
Problem Statement and Requirements An event streaming platform extends a basic message broker with features required for long-lived, schema-evolving data
Problem Statement and Requirements A pub/sub service enables one-to-many message delivery: publishers send messages to topics without knowing who will
Requirements and Constraints A distributed cron service triggers jobs on time-based schedules (standard cron expressions) across a fleet of nodes
Requirements and Constraints A consensus service provides a strongly consistent, fault-tolerant replicated state machine that multiple clients can use to
Requirements and Constraints A leader election service ensures that exactly one node in a cluster acts as leader at any
Requirements and Constraints CQRS (Command Query Responsibility Segregation) separates write operations (commands) from read operations (queries) into distinct models, each
Problem Scope and Requirements A Session Manager maintains authenticated user sessions across stateless HTTP services. The core challenges are fast
Problem Scope and Requirements JWTs are stateless by design — once issued, they are valid until expiry. A Token Revocation
Problem Scope and Requirements A Key Management Service (KMS) manages cryptographic keys throughout their lifecycle: generation, storage, rotation, and destruction.
Problem Overview A live auction system allows bidders to compete in real time, with each bid potentially triggering updates for
Problem Overview An inventory reservation system allows multiple systems (e-commerce checkout, warehouse management, wholesale orders) to place temporary holds on
Problem Overview A matchmaking service groups players into balanced game sessions based on skill, latency, and preference. The system must
Problem Overview Game state synchronization keeps all clients and the authoritative server in agreement about the game world in real
Notification Schema Every notification is a structured record created before any delivery is attempted: notification_id: UUID or Snowflake — unique
