How is LLD different from HLD

What is Low-Level Design(LLD)?

LLD, or Low-Level Design, is a phase in the software development process where detailed system components and their interactions are specified. It involves converting the high-level design into a more detailed blueprint, addressing specific algorithms, data structures, and interfaces. LLD serves as a guide for developers during coding, ensuring the accurate and efficient implementation of the system’s functionality. LLD describes class diagrams with the help of methods and relations between classes and program specs....

How is LLD different from HLD

As studied, High Level Design or HLD is a general system design where we do tradeoffs between different frameworks, components, and different databases and we choose the best considering what the business needs and how the system should work, both in terms of functional and non functional aspects . Here we define the components and how these components will be communicating with one another. Hence here we are bothered with generic stuff as follows and not bothered about the code....

How to form LLD from HLD?

As studied above, input for framing low-level design (LLD) is HLD. Here in LLD, we take care of how our components will look like, the structure possessed by different entities, and how different entities will have their responsibility(operations supported). For this conversion, we use Unified Modelling Language (UML) diagrams. Adding to these diagrams we use OOPS principles and SOLID principles while designing. Hence, using these 3 paradigm we can convert any HLD to LLD so as to get implemented....

Roadmap to Low-level Designing

In order to bridge concepts of LLD with real code let us In order to understand how to design any low-level diagram let us understand via the steps:...