What I find is that many people do not consider different edge cases or understand what the data really represents. They have some vague notion of what they wa

What I find is that many people do not consider different edge cases or understand what the data really represents. They have some vague notion of what they want, and you only get that very high level limited case. They almost need some training on how to think like a program in some sense to understand just how much detail is needed to provide a good spec.