Many developers face confusion when talking about HLD and LLD. Essentially, a High-Level Design provides a general perspective of the application , outlining its major modules and their interactions - it’s like a map . Conversely, a Low-Level Design dives deep into the specifics. It details *how*
Concerning building software , it's necessary to understand the separate roles of HLD and low-level design . HLD provides a overall perspective of the project, outlining the major components and their connections omitting specific execution specifics. Conversely , Low-level design goes into the
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