Concerning developing software , it's necessary to appreciate the separate roles of top-level design and LLD . Top-level design provides a broader view of the application , outlining the major modules and their relationships without detailed implementation specifics. In contrast , LLD descends into

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