The document discusses three types of waste in production systems: muda, muri, and mura. It defines muda as non-value added activities that increase lead times and inventory. Muri refers to overburdening equipment or people beyond their limits, which can cause safety, quality, and breakdown issues. Mura is unevenness in work levels that results in periods of excess work and lack of work. The document then lists eight specific types of non-value added waste: overproduction, waiting, unnecessary transport, over processing, excess inventory, unnecessary movement, defects, and unused employee creativity.
Value" is any action or process that a customer would be willing to pay for. Lean manufacturing is a management philosophy focused on the reduction of the "seven wastes in" order to improve overall customer value.
The 8 waste in Lean Manufacturing - Lean Six Sigma TrainingAnkit Sharma
Waste is any step or action in a process that is not required to complete a process (called “Non Value-Adding”) successfully. When Waste is removed, only the steps that are required (called “Value-Adding”) to deliver a satisfactory product or service to the customer remain in the process.
In any business, the greatest enemy of profitability is waste-- typically of time or money. In lean manufacturing, waste is any expense or effort that is put forward which does not transform raw materials into an item the customer is willing to pay for. There are 8 types of waste in Lean Manufacturing. Seven of the eight wastes are production process oriented, while the eighth waste is directly related to management’s ability to utilize personnel.
Identifying and managing waste in software product developmentKen Power
This is the slide deck from my talk at LESS 2012, the Lean Enterprise Software and Systems conference in Tallinn, Estonia.
http://SystemAgility.com/events
Value" is any action or process that a customer would be willing to pay for. Lean manufacturing is a management philosophy focused on the reduction of the "seven wastes in" order to improve overall customer value.
The 8 waste in Lean Manufacturing - Lean Six Sigma TrainingAnkit Sharma
Waste is any step or action in a process that is not required to complete a process (called “Non Value-Adding”) successfully. When Waste is removed, only the steps that are required (called “Value-Adding”) to deliver a satisfactory product or service to the customer remain in the process.
In any business, the greatest enemy of profitability is waste-- typically of time or money. In lean manufacturing, waste is any expense or effort that is put forward which does not transform raw materials into an item the customer is willing to pay for. There are 8 types of waste in Lean Manufacturing. Seven of the eight wastes are production process oriented, while the eighth waste is directly related to management’s ability to utilize personnel.
Identifying and managing waste in software product developmentKen Power
This is the slide deck from my talk at LESS 2012, the Lean Enterprise Software and Systems conference in Tallinn, Estonia.
http://SystemAgility.com/events
1. Waste elimination
Muda : Non-value added. Wasteful activities
that lengthen lead times , cause extra movement
to get parts or tools , create excess inventory , or
result in any type of waiting.
Muri : Overburdening people or equipment.
Muri is pushing a machine or person beyond
natural limits. Overburdening people results in
safety and quality problems. Overburdening
equipment/machine causes breakdowns and
defects.
Mura : Unevenness. In normal production
systems, at times there is more work than the
people or machines can handle and at other times
there is a lack of work.
2. Waste Elimination
EIGHT NON-VALUE-ADDED WASTES.
1. Overproduction : Producing items for which
there is no orders, which generates such wastes as
overstaffing and storage and transportation costs
because of excess inventory.
2. Waiting : Workers merely serving to watch an
automated machine or having to stand around
waiting for the next processing step, tool, supply,
part etc., or just plain having no work because of
stock outs, lot processing delays, equipment
downtime, and capacity bottleneck.
3. Unnecessary transport : Carrying WIP long
distances, creating inefficient transport, or
moving materials parts, or finished
goods into or out of storage or between processes.
3. elimination
4. Over processing or incorrect
processing : Taking unneeded steps to process
the parts. Inefficiently processing due to poor tool
and product design, causing unnecessary motion
and producing defects. Waste is generated when
providing higher quality products than is
necessary.
5. Excess Inventory : Excess raw materials,
WIP, or finished goods causing longer lead times,
obsolescence, damaged goods, transportation, and
storage costs, and delay. Also extra inventory
hides problems such as production imbalances,
late deliveries from suppliers, defects, equipment
downtime, and long setup times.
4. Waste Elimination
6. Unnecessary Movement : Any wasted
motion employees have to perform during the
course of their work, such as looking for reaching
for , or stacking parts tools etc.
7. Defects : Production of defective parts or
correction. Rework or repair, scrap, replacement
production, and inspection mean wasteful
handling, time , and effort.
8. Unused employee creativity : Loosing
time, ideas, skills, improvements, and learning
opportunities by not engaging or listening to your
employees.
