Data Consistency Models — Data & Databases

This repository is a comprehensive educational resource designed to help software engineers master large-scale system design and prepare for technical interviews. It provides a structured curriculum that covers the fundamental principles of distributed systems, backend engineering, and object-oriented design through a combination of study guides, architectural patterns, and practical problem-solving methodologies. The project distinguishes itself by applying theoretical concepts to real-world scenarios through case-study-based modeling and a constraint-driven analysis framework. It emphasizes trade-off-centric documentation, which highlights the inherent conflicts between architectural patterns to guide informed decision-making. To reinforce learning, the repository includes an active-recall study mechanism featuring curated flashcards and a hierarchical taxonomy that organizes complex concepts into manageable modules. The resource covers a broad capability surface, including strategies for scaling cloud infrastructure, managing data consistency, and optimizing system performance through caching, load balancing, and asynchronous communication. It also provides extensive object-oriented design exercises and structured interview preparation materials, such as back-of-the-envelope calculations and step-by-step design frameworks for common high-throughput services. The documentation is organized as a modular reference guide, allowing users to navigate through foundational topics and advanced architectural discussions at their own pace.