What is the Software Development Life Cycle (SDLC) and Software Testing Life Cycle (STLC)?

• SDLC (Software Development Life Cycle): This is the entire process of building software. It defines the phases, starting from initial requirement gathering to planning, design, coding, testing, deployment, and maintenance. The goal is to produce high-quality software efficiently.

• STLC (Software Testing Life Cycle): This is a subset of the SDLC that defines the systematic steps to ensure quality goals are met. It typically includes: Requirement Analysis (understanding what to test), Test Planning, Test Case Development, Test Environment Setup, Test Execution, and Test Cycle Closure.