No development methodology can eliminate the fact that building software is hard, and complex data systems quickly grow exponentially in complexity. Developing

No development methodology can eliminate the fact that building software is hard, and complex data systems quickly grow exponentially in complexity. Developing and maintaining a large project will be difficult, no matter your approach. Which is not to say that all approaches are equal. Part of our problem is that we want a development/management approach that works for all types of problems. There isn't one.