Our group was in agreement that the double diamond diagram did a nice job describing the typical design process in general. If we were to modify it, we might add a feedback loop to capture how the process is often not linear. Part of the development process involves using learnings to help redefine project goals and scope. The process becomes a bit more cyclic in the middle:
We then found a really nice visual representation that captured our thinking in Bill Buxton’s Sketching User Interfaces. As you can see, Buxton characterizes the design process in a diamond-like manner with breadth and depth phases. But he also accounts for more iterative cycles throughout:
Looking forward to giving this process a try.