Low Level Design
Full Form of LLD
What is LLD?
Low Level Design (LLD) is a detailed technical blueprint that translates high-level system architecture into specific component-level specifications. In software engineering, LLD focuses on individual modules, classes, interfaces, data structures, algorithms, and database schemas. It defines how each piece of the system will be implemented, including error handling, performance optimization, and resource management. In India, LLD is a critical phase in the Software Development Life Cycle (SDLC) used by IT companies like TCS, Infosys, and Wipro to ensure code quality and maintainability. Developers and architects create LLD documents using tools such as UML diagrams (class, sequence, activity) to communicate precise design decisions. LLD is especially relevant for students and professionals preparing for technical interviews at top product-based companies (Google, Amazon, Microsoft) where system design questions often require both high-level and low-level design thinking. Understanding LLD helps Indian engineers write efficient, scalable, and modular code. Mastery of LLD is often tested in coding rounds to evaluate a candidate's ability to think about implementation details, trade-offs, and edge cases. Ultimately, LLD bridges the gap between conceptual architecture and actual code.
LLD का फुल फॉर्म
निम्न-स्तरीय डिज़ाइन
Example
After the architecture review, the backend team split into squads to work on the LLD for the payment gateway module.