Lean
Unlike Scrum and XP, Lean doesn’t include a set of practices. Lean is a mindset, and just like with the mindset for Scrum or XP, Lean comes with values and principles (which, in Lean terminology, are called “thinking tools”). [[ Learning Agile ]] (p 269) The mindset of lean is sometimes called lean thinking.
(it is not a methodology as it is missing concrete practices)
Lean values
[[ Learning Agile ]] (p272)
Seven wastes of Software Development
- Partially done work
- Extra processes
- Extra features
- Task switching
- Waiting
- Motion (e.g. walking/travel to collaborate)
- Defects
One tool for understanding the system and detecting waste is [[ Value Stream Mapping - theoretical background |Value Stream Mapping ]]
3 Types of wastes that constrain a workflow
Muda (無駄), which means “futility; uselessness; idleness; superfluity; waste; wastage; wastefulness”
Mura (斑), which means “unevenness; irregularity; lack of uniformity; nonuniformity; inequality”
Muri (無理), which means “unreasonableness; impossible; beyond one’s power; too difficult; by force; perforce; forcibly; compulsorily; excessiveness; immoderation”
[[ Learning Agile ]] (p305)
(stemming from The Toyota Production System)
Linking
- [[ Toyota Kata ]]
- Lean Software Development - Mary Poppendieck Tom Poppendieck Thomas David Poppendieck
- Lean-Agile Software Development - Alan Shalloway Guy Beaver James R Trott
