Lean flow is one of the elements of the CALMR approach to DevOps in SAFe. It means applying lean
principles and practices to optimize the flow of value from idea to production. Lean flow accelerates
delivery by eliminating waste, reducing batch sizes, implementing pull systems, limiting work in
process, managing queues, reducing handoffs, and applying cadence and synchronization. Lean flow
enables faster feedback, shorter lead times, higher quality, and lower costs. (Must be taken from
SAFe 6 Scrum Master resources)
Reference:
CALMR - Scaled Agile Framework
The CALMR Approach to DevOps [Complete Guide] - KnowledgeHut
SAFe Scrum Master Course Outline