Software development is a Life cycle, is a process of planning, creating, testing, and deploying information systems across hardware and software.

There are 7phases of SDLC

Planning Requirements Design Build Test Deployment Maintaining

Models in SDLC

• Water fall Model
• Iterative Model
• Spiral Model
• V Model
• Big bang Model

Evolutionary prototyping

it is software development method where the developer or development team first constructs a prototype.