Most people categorize projects as being either Agile or Waterfall. In is book, Effective Project Management: Traditional, Agile, Extreme, Hybrid, Robert Wysocki identifies four kinds of projects.

The four quadrants

Projects have clear or unclear goals and solutions. When a project approaches and wags its tail, the project manager must check its goals and solutions to make the correct identification. Calling an extreme project “agile” would be silly, like confusing a golden retriever and a pug.

Traditional (Waterfall)

Agile

Extreme

Emertxe