Diagnose

Bucket share over time

What it is

What it shows

Each bucket's share of the monthly total, stacked to 100%.

Why it matters in manufacturing

It separates the mix from the size. Even when the total moves with production volume, the shares show whether the cost profile shifts from failure towards prevention.

How to read it

A growing prevention band at the bottom and shrinking failure bands at the top mean the quality strategy is working.

What good looks like

The prevention band at the bottom widens over time and the failure bands at the top narrow, month after month rather than in one jump.

Expert view

The expert is reading the figures…

Concern

There is a problem here worth looking into.

What we observe

Good: The failure share fell from 63% to 51% of quality cost (−11.1 pt).
Good: Prevention grew from 8% to 16% of quality cost (+7.6 pt).
Problem: External failures are 48% of failure cost: many defects are found by customers rather than in the plant.

Keep in mind

One set has a record count that differs from AlisQI.
The token cannot read 5 sets, so the total may be partial.

Computed by the app from the figures in this view. Data as of 9 Nov 2026 02:14.