Waste

Value Adding (VA) & Non-Value-Adding (NVA)

These are defined in detail elsewhere in this site. Click Here to Read

How to identify Waste?

With respect to lean Waste is usually considered of 7 types.  It very often is also equated to MUDA (a word in Japanese supposed to have the meaning as Waste).

In our terminology we would like to state it with little difference. 

With respect to Lean and waste associated with any business must consider the following

1.
It would include all the three Japanese terms

 

 

MUDA 

 

 

 

Typically explained to be of 7 types Waste or uselessness, viz.,

 

 

 

 

Overproduction – producing more than, faster than or sooner than is required

 

 

 

 

Waiting – idle time that could be used productively

 

 

 

 

Transporting – unnecessary transport of parts or materials

 

 

 

 

Inappropriate processing – operations that add no value from the customer’s perspective

 

 

 

 

Unnecessary inventory – exceeding one-piece flow

 

 

 

 

Unnecessary/excess motion – any movement by people or equipment that does not add value

 

 

 

 

Defects – rework, repair or waste in its simplest form

 

 

 

 

 

 

What should flow:

 

 

 

 

 

 

 

 

Material in a factory;

 

 

 

 

 

 

 

 

Document in an office;

 

 

 

 

 

 

 

 

Guest in a hotel;

 

 

 

 

 

 

 

 

 

Is it stopping?..........Muda!

 

 

 

 

 

 

 

 

 

Is it re-tracking?.......Muda!

 

 

 

 

 

 

 

 

 

Is it piling up?...... ...Muda!

 

 

 

 

 

 

 

 

 

Reprocessing?...... ...Muda!

 

 

MURA

 

 

 

(Japanese term to express variation or variability - typically in any process with respect to Lean) - Unevenness, inconsistency or abundance of variation 

 

 

 

 

 

 

Look for:

 

 

 

 

 

 

 

 

Where it is different?

 

 

 

 

 

 

 

 

When it is different?

 

 

 

 

 

 

 

 

Extent of difference.

 

 

 

 

 

 

Kaizen the Situation:   Even a copy improvement is better than the original (status-quo)!

 

 

MURI 

 

 

 

(Another Japanese term stands for strain) - Overburden, unreasonable
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