When tackling application development, it's crucial to differentiate between a High-Level Design ( Architectural Overview ) and a Low-Level Design (LLD ). The overview paints a broad view of the application's components and their connections, focusing on the “what” and “why”. Essentially, it outl

The key difference between a HLD and a LLD lies in their level of abstraction . The HLD presents a bird's-eye view, outlining the major components, their interactions, and the overall system strategy . It focuses on "what" needs to be accomplished – defining the architecture without delving into