Agile methodology is a practice which promotes continues interaction of development and testing during the Software Development Life Cycle / SDLC process of a project. In the Agile method, the entire project is divided into small sprints. All of these sprints are provided in iterations, and each iteration lasts from two to four weeks.

Any agile software phase is characterized in a manner that addresses several key features into Sprints & Iterations.

At the beginning of any software, it is difficult to identify which software requirements will persist and which will change. It is equally difficult to predict how user priorities will change over time as the project proceeds.

Any types of software, design and development are interleaved. That is, both activities should be performed in tandem so that design models are proven as they are created. It is difficult to think about how much design is necessary before construction is used to test the configuration.

Complete Analysis, design, development, and testing are not as predictable at the beginning of the project, In agile it’s divided in to multiple sprints, so this tedious job becomes more easy for the stake holder to determine the priority.