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Why are software development estimates regularly off by a factor of 2-3 times?

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Software projects often take longer as expected. Why?

See this great article by Michael Wolfe here!

Why are software development estimates regularly off by a factor of 2-3 times?

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Map taken from bing.com/maps.

Michael explains the occuring (and unexpected) problems with an anology of a planned hike on the coast from San Francisco to Los Angeles to visit friends in Newport Beach.

The line is about 400 miles long; they can walk 4 miles per hour for 10 hours per day, so they’ll be there in 10 days. Or…?

Enjoy!


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