A new approach to failing projects - a study.

I agree with Thomas. Failure management on projects not only depends on Technical simulations of the product since there are multiple other factors that can cause project objectives deviation, such as, as Thomas mentioned, the human factor, and to this, we can add a variety of other factors, including Ambiental considerations, political environment, global change tendencies, etc, that can cause the project don't comply expectations as we expected to.

Having read all the preceding comments I find no reference to risk management. Project failure occurs because of a failure to predict and mitigate a risk that ultimately leads to failure. Whether we have optimism in the business case or imperfect project implementation or influence of outside factors or uncontrolled scope changes, if we can predict them we can avoid failure.