If creating software , it is essential to understand the separate roles of top-level design and low-level design . HLD provides a broader perspective of the project, describing the principal modules and their interactions omitting detailed realization specifics. In contrast , Detailed design des

Even in a UPI-heavy economy, almost every billing counter in India still keeps a physical cash drawer under the counter, from kirana stores to pharmacies and restaurants. Card and QR payments have not removed cash, they have just made the drawer less busy. A proper cash drawer beats a loose box b