As we go on development client may request for new features and the application becomes bigger and is the less predictable they become. User-centered design is completely based on the end user experience and problems. At times, this information might not give the best solution to the application being developed. To overcome the limitations of the user-centered design we follow agile development and iterate each step until we figure out the best solution.
In agile software development, an iteration is a single development cycle, usually measured as one week or two weeks. An iteration may also be defined as the elapsed time between iteration planning sessions. Iterative development is a way of breaking down the software development of a large application into smaller chunks. In iterative development, feature code is designed, developed and tested in repeated cycles. Iterative and incremental development are key practices in Agile development methodologies. While developing in each stage, we welcome change in requirements and move ahead.
Iteration process helps fill the missing gaps in understanding and add constructive solution making the application error free. Our whole process is iterative based on the agile development concept and user-centered approach.