Rainer Kröning, Berlin

Pareto Analyse - ABC-Analyse

Application - Use - Example - Tools - Templates

The Italian economist Vilfredo Pareto, 1848-1923, found out, that with 20% of the time exposure 80% of the results were reached. Also many software phenomena follow a 80/20-Pareto distribution:

20 percent of the ...   80 percent of the ...
Modules Consume
Contribute
Consume
Resources
Errors
Execution time
Errors Consume Repair costs
Enhancements Consume Adaptive maintenance costs
Tools Experience Tool usage

Application

Pareto analysis is used for identifying the one or two situation categories in which most of the problems occur.

A chart (Pareto diagram) represents visually the distibution of studied occurrences, whereby the most frequent occurrence is represented on the left-hand side. The other occurrences will be represented in descendeing order to the right.

Use

Example

Cause for customer problems, categorized by process steps.

Pareto

Tools

MS EXCEL

StarCalc

Templates

MS EXCEL- activate the macros

Weisheit

Wo man schreit, ist keine klare Erkenntnis.

Loenardo Da Vinci
1452 – 1519
italienischer Maler und Universalgelehrter

Musikerwitz

"Mama, warum droht der Mann da vorne der Dame auf der Bühne mit dem Stock?"
"Er droht nicht, er dirigiert."
"Aber warum schreit sie dann so?"