In Japan, waste is generally known as ‘muda‘, meaning wasted effort. In fact, there are other forms of waste: ‘mura‘ and ‘muri‘.
- Muda: Wasted effort
- Mura: Inconsistency
- Muri: Unreasonable requirements
And, what are the 7 Wastes of Lean?
This video is safe for viewing in the workplace.This is learning, so, sit back and enjoy
Taichi Ohno, The Toyota Production System, Lean, and Muda…
Taichi Ohno revolutionized productivity at Toyota, to produce the Toyota Production System (TPS) – the forerunner of Lean Production.
The starting point for Ohno’s reforms was the idea of waste, or ‘Muda’. Ohno waged a systematic campaign to eliminate all possible forms of waste. In so doing, he identified the seven categories that are often known as the ‘Seven Wastes’.
The 7 Wastes of Lean
- Defective Production
Producing defective products. These need to be found, removed, re-made or remediated, and re-tested.
Producing more than is needed at the time.
Idle, non-productive time. This is relevant to us, as project managers, in our use of Critical Path Analysis and Critical Chain planning.
The wasted time and risks of damage or loss. Lean tries to minimize distances between the stages in a process.
Holding unnecessary stock and therefore incurring capital costs. Applies to raw materials, Work in Progress, and completed products
The wear and tear and the accidents that arise in moving things around a plant – or moving people
- Excessive Processing
Over-specification the quality of components, or creating unwanted functionality, for example. This latter is very much the concern of many Agile methodologies
DOWNTIME: 8 Wastes
Some people add other wastes to Ohno’s original seven, most commonly placing Non-used employee talent (wasting skills) between number 3 and 4 in my ordering, so create the mnemonic acronym: DOWNTIME.
TPS and Kanban
By the way, Ohno also developed a system of signboards that track progress of goods through the manufacturing process, which are called ‘Kanbans’. The kanban board is now widely used to track progress in projects throughout commerce, especially in managing software projects under agile project management methodologies.
Muda, Mura, Muri: So, what of Mura and Muri
Less is said about these in the Production environment. But I believe they are both vital to us, in the Project environment.
We need to be adaptable and not stick slavishly to fixed methods. But it is also important to create consistency where we can, to produce a controlled project environment. Key elements of this are:
Muri: Unreasonable requirements
What Project Manager will fail to recognize unreasonable requirements as a source of waste. Wasted:
- Emotional energy
Carefully curated video recommendations for you:
Videos that answer the question, ‘What is…
- The Gemba …and Going to the Gemba?
- 5S? [Japanese Efficiency]
- The Next Step in Your Project Management Career? (Ikigai)
What Kit does a Project Manager Need?
I asked Project Managers in a couple of forums what material things you need to have, to do your job as a Project Manager. They responded magnificently. I compiled their answers into a Kit list. I added my own.
Note that the links are affiliated.
Learn Still More
For more great Project Management videos, please subscribe to the OnlinePMCourses YouTube channel.
If you want basic Management Courses – free training hosted on YouTube, with 2 new management lessons a week, check out our sister channel, Management Courses.
For more of our Project Management videos in themed collections, join our Free Academy of Project Management.
For more of our videos in themed collections, join our Free Academy of Project Management.What are Muda, Mura, Muri? And, what are the 7 Wastes of Lean | Video Click To Tweet