Final answer:
Progressive elaboration involves developing a more accurate and detailed project management plan over time, aligning with the concept of continuous improvement and refined processes through feedback and iterative testing.
Step-by-step explanation:
The best definition of progressive elaboration is option (c): Developing a more accurate, detailed project management plan over time as a better understanding of the project deliverables and objectives develops. This concept adheres to the continuous development view that the process of project management and design is a cumulative one, involving gradual improvement of project plans through phases of prototyping, testing, refinement, and iterative changes. During the transition from initial concept to detailed design, progressive elaboration plays a crucial role.
It implies that as the project team gains insights and collects more information, the project plan becomes more comprehensive and detailed. This process is analogous to breaking a large goal into a series of smaller steps, enabling better management and realization of complex projects. Moreover, in the phases of implementation, the progressive elaboration approach involves flexibility and adaptation, where designers refine designs based on testing, feedback, and emerging challenges that may necessitate revisions to the initial plan.