Planning is good, plan. Designing is good, design. But there’s something about ‘Upfront design” that seems to suggest that you can come up with the perfect plan. That you can know it all.
Here are three quotes that might help you:
“It’s hard to make predictions, especially about the future.” – Niels Bohr
“There are known knowns. These are things we know that we know. There are known unknowns. That is to say, there are things that we know we don’t know. But there are also unknown unknowns. There are things we don’t know we don’t know.” – Donald Rumsfeld
“Flexibility trumps perfection.” – David Allen