A shipping company is looking to have an old decision-support system replaced with a new custom system to improve performance. Based on executive opinions, it is best if the process involves building a preliminary design, trying it out, refining it, and repeatedly trying again. The board of directors would like the process to be structured but somewhat flexible. Which development method should be used for the new information system?

The traditional life cycle, often referred to as the Waterfall model, follows a linear and sequential approach to software development. While it provides structure, it lacks the flexibility required for incorporating user feedback throughout the process, making it less suitable for the company's needs for ongoing testing and refinement.

RAD emphasizes quick development and iteration, focusing on user feedback. However, it may not provide the same depth of iterative design and prototyping as a dedicated prototyping approach. Therefore, while RAD is fast, it might not offer the structured refinement process that the executives are looking for.

DevOps is a methodology that emphasizes collaboration between development and operations teams to improve delivery speed and reliability. While it encourages continuous integration and deployment, it is more focused on operational aspects rather than the iterative design and user feedback process central to prototyping.