What is an iterative approach in systems development?

An iterative approach in systems development is characterized by the process of developing a system in repeated cycles or iterations. This method allows for incremental improvements and refinements, as the developers can build a portion of the system, test it, gather feedback, and then revise or add to it in subsequent iterations. The primary advantage of this approach is that it enables continuous user involvement and adjustments based on feedback throughout the development process, resulting in a more user-centric and adaptable system.

By working in cycles, developers are able to address issues as they arise and implement changes more fluidly than in traditional linear models. Each iteration can build upon the previous one, allowing for progressive enhancement of the system and a clearer understanding of user requirements and expectations. This methodology contrasts sharply with linear methods, which complete phases without returning to revise based on feedback.