I work in consulting where if your estimates are not right then you don't eat. One thing many people forget is that writing code is only a small part of the ove

I work in consulting where if your estimates are not right then you don't eat. One thing many people forget is that writing code is only a small part of the overall effort in software development. I feel like i could write a book on the subject but I think the most common error is not understanding the scope of the overall effort from an idea to effective use by end users and only estimating the typing-on-the-keyboard part.