Page 233 - Lean six sigma demystified

Voice of Customer

Line Graph
Line Graph

Pa reto Char t
Pareto Chart
6 Countermeasures nal y si s
Root Cause Analysis
Root Cause
A
Counter
measures
c h a p t er NUMBER OF NUMBER OF INSTALLATIONS INSTALLATIONS BEFORE USL B BEFORERE Problem Solving
BEFORE
O
EF
AFTER
AFTE
NUMBER OF OF ONS INSTALLATIONS AFTER R USL AFTER
Transactional
Six Sigma

For the last few decades (and the foreseeable future), the race for productivity
and profitability has been led by technology: software, hardware, and network
solutions. More and more processes are being integrated into a company’s
application systems. This both speeds things up and slows them down. Pro-
grammers etch process errors into the stone of code, so the software produces
the same errors as the manual process, only faster and more of them. Changes
to software applications often take months if not years to implement depending
on how much clout you have in the endless meetings that prioritize changes to

existing systems. Almost any process improvement now involves some sort of
application software change, so it’s becoming essential to understand how to
make dramatic improvements in software systems.

CHAPTer OBJeCTiVeS

In this chapter, you will
• Learn how to apply Six Sigma for software and information Technology

• Learn the Dirty 30 process for Six Sigma software

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