What is Software Development Life Cycle (SDLC)? Explain with waterfall model.

What is Software Development Life Cycle (SDLC)? Explain with waterfall model.

SDLC is a process of developing the software and there are different SDLC are used to develop the software called SDLC models.

The development process adopted for a project will depend on the project aims and goals. There are numerous development life cycles that have been developed in order to achieve different required objectives. 

These life cycles range from lightweight and fast methodologies, where time to market is of the essence, through to fully controlled and documented methodologies where quality and reliability are key drivers.

Each of these methodologies has its place in modern software development and the most appropriate

What is testing? Who does testing? When to start testing and when to stop testing?

What is testing? Who does testing? When to start testing and when to stop testing?

What is testing?

Testing is a process of exercising and evaluating a system component by means of manual or automation to ensure that the system is satisfying the customer requirements or not?

OR

Process of identifying the defects is also known as testing. Or In other words software testing is a verification and validation process.

Who does testing?

It depends on the process and the associated stakeholders of the project(s). In the IT