AT $250 an hour and 8 hours per day / 2000 hours per year, that's almost ~50 people years, which likely means a team of 10-12 devs working on it over 18 months with another 1-3 design and product and project people in the way making things look good until the bill arrived. Accenture is good at that. [0]
0 - https://australiatimes.com/australia-s-bureau-of-meteorology...