12.1.4 Lean

  • Value: customer really wants and pay for
  • Value Stream: all activities needed to deliver value to the customer
  • Value Stream Mapping: visualization and optimization of the Value Stream
  • Mura (unevenness): various needs and uneven demands
  • Muri (overburden): overloading the people, equipment, etc.
  • Muda (waste): non value added works, overproduction, inventory, waiting, fixing defects, etc.
  • Constancy of purpose: most important long term objectives
  • Proactive behaviour
  • See the whole: avoid local optimization, prefer system integration with cross functional teams
  • Flow, pull: perform very fast work when demand appears
  • Continuous improvement: Kaizen
  • Gemba: real/actual place walking at customer/user place
  • 5S: Sort, Set in Order, Shine, Standardize, Sustain
  • Root Cause Analysis: 5 Why, Fishbone
  • PDCA: Plan – Do – Check – Act
  • A3 thinking
  • Lean improvement cycle       
    • Identify the value(s)
    • Identify the value stream and eliminate waste
    • Flow products and services to the customer
    • Pull: deliver only when the customer asks for it
    • Pursue perfection
  • Lean project management
    • Initiation: preliminary PDCA cycle(s)
    • Plan: corresponds to Plan step of the PDCA cycle
    • Execute: corresponds to the Do step (PDCA)
    • Monitor and Control: corresponds to Check and Act (PDCA)
    • Close: post PDCA cycle(s)
  • Lean software development
    • Amplify Learning
    • Decide as late as possible
    • Deliver as fast as possible
    • Empower the team
    • Build integrity in
    • See the whole