When developing systems , it's vital to understand the distinct roles of high-level design and detailed design. High-level design provides a overall perspective of the system , describing the core modules and their relationships omitting detailed execution specifics. On the other hand, Low-level des

Caching Strategies Start With One Question: How Stale Can This Data Be? Most caching answers jump straight to Redis. The stronger answer starts one step earlier. Caching is a deliberate trade of freshness for speed, so the first thing to establish is how much staleness the product can tolerate. A pr