TOP-LEVEL DESIGN VS. DETAILED DESIGN: GRASPING THE IMPORTANT DISTINCTIONS

If developing applications, it's necessary to appreciate the contrasting roles of top-level design and LLD . HLD provides a larger picture of the system , describing the principal modules and their relationships without detailed implementation specifics. In contrast , LLD goes into the practical

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 t