A Comparative Study between Waterfall and Incremental Software Development Life Cycle Model

Software development life cycle or SDLC for short is a methodology for designing, building, and maintaining information and industrial systems. There are various SDLC models widely used for developing software. SDLC models give a theoretical guide line about development of the software. Software Development Life Cycle (SDLC) methodologies are mechanisms to assure that software meet established requirements. These methodologies impose various degrees of discipline to the software development process with the goal of making the process more efficient and predictable. SDLC models are very important for developing the software in a systematic manner such that it will be delivered within the time deadline and should also have proper quality. Each SDLC has its advantages and disadvantages according to which we decide which model should be implemented under which conditions. In the present scenario all software systems are imperfect because they cannot be built with mathematical or physical certainty. According SDLC each and every model has the advantage and drawbacks. The concept of system lifecycle models came into existence that emphasized on the need to follow some structured approach towards building new or improved system. For this we need to compare SDLC models. In this paper we will compare two different famous life cycle models like-waterfall model & incremental model. Keywords: Increment model, waterfall model, Software engineering, Software process model and Softwar e