Differentiate between LLDs or HLDs in SDLC?

Answered by Anug Verma
LLDs refers to the Low-Level Designs while HLDs refer to the High-Level Designs. Both of them are used for understanding and analyzing the project. LLD allows you to perform analysis at a low level while HLD allows you to perform a high-level analysis of the project.
HLD: In HLD a normal partition is done into components for specific behavior. To take the user input HLD is having a UI layer and a service layer for encryption of passwords, validation, communication, and authentication.
LLD: In LLD there are two boxes of UI along with one submit button. For example in the case of a register/login system, there will be a user table with the fields like id, password or username.

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