Software Testing Basics

A software life cycle model is a descriptive representation of the software development cycle. SDLC models might have a different approach but the basic phases and activity remain the same for all the models. 1) Waterfall Model 2) V-Shaped Model 3) Prototype Model 4) Spiral Model 5) Iterative Incremental Model  6) Big Bang Model 7) Agile Model Waterfall Model The  Waterfall Model  was the first Process Model to be introduced. It is very simple to understand and use it. In a  Waterfall  model, each phase must be completed before the next phase can begin and there is no overlapping in the phases.  The waterfall  model is the earliest  SDLC   approach that was used for software development. n “ The Waterfall ” approach, the whole process of  software development  is divided into separate phases. The outcome of one phase acts as the input for the next phase sequentially. This means that any phase in the development process begins only if the previous phase is complete. The waterfall model

SDLC stands for SOFTWARE DEVLOPMENT LIFE CYCLE GENERAL DEFINITION- It is different phases of life through with a software undergoes during its development. Main propose of SDLC is to ensure that the software which is being developed should be of high quality and should meet customer expectation. SPECIFIC DEFINITION   It  is a systematic process for building software that ensures the quality and correctness of the software built. SDLC process aims to produce high-quality software that meets customer expectations. The system development should be complete in the pre-defined time frame and cost. SDLC consists of a detailed plan which explains how to plan, build, and maintain specific software. Every phase of the SDLC life cycle has its own process and deliverables that feed into the next phase. SDLC stands for Software Development Lifecycle. LIFE CYCLE : There are 6 phases in life of Software Phase 1: Requirement analysis: The requirement is the first stage in the SDLC process. It is cond