Hell has frozen over.

The Harvard Business Review – the revered business journal that for decades has described business techniques developed in and for large corporations executing known business models – this month embraced the Lean approach, with its distinct set of tools and techniques to guide a new venture’s search for a scalable business model.

The article describes Lean as the search for a repeatable and scalable business model – and business model design, customer development and agile engineering as the way you implement it. It also describes how the Lean philosophy is taking hold at engineering and business schools worldwide.