Combining Lean and Agile practices
The current trend among Agile methodologists is to combine the software development concepts behind Agile with those associated with Lean production processes. The integration of Lean and Agile practices became mainstream only after Mary and Tom Poppendieck promoted Lean as a component of Agile practices in their book, Lean Software Development: An Agile Toolkit (Poppendieck, 2003). The impact of their book was significant, and most modern Agile methodologies, such as Scrum, Large Scale Scrum (LeSS), Discipline Agile (DA), and the Scale-Agile Framework® (SAFe®), now claim to have Lean underpinnings.
Still, the concept of Lean-Agile practices is relatively new as an IT discipline. Most of the so-called Lean-Agile methodologies do not promote nor teach comprehensive methods to make Lean-oriented production improvements. Instead, most Lean-Agile methodologies state that Lean or Lean thinking principles are built into their methodologies...