Columnist Bill Walton explores a fundamental misunderstanding of software development that may be costing your company money.

The Agile software model is flexible, iterative and responsive to change. In contrast, Waterfall has a very rigid structure. The Waterfall framework Waterfall defines several specific phases in ...

Agile and Waterfall represent drastically different approaches to software development -- Agile embraces change while Waterfall prioritizes rigidity.

The model’s inherently inflexible and non-iterative form make it worthy of note, but unpopular for most modern software engineering application development environments.