SIx Sigma Project: Analyze Phase

Analyze Phase Activities:

From the Measure Phase, the Key X’s were selected based on the use of the 5 Whys

tool.

The 5 Why’s tool allowed the team to work through the primary reasons for rework and

allowed the team to determine the root causes of each. Refer to the weblink for an

example of the template used during this process.

An extract of the Template is provided below:

5 Why’s Template:

Define the Problem:

Why is that?

The 5 Why’s highlighted multiple root causes which contribute to the ‘rework’ during

the process. Therefore, further analysis of the 5 Why’s process was required to select

the primary root causes.

Further analysis was completed through brainstorming all root causes and selecting the

primary root causes through team process experience and a multivoting process by the

team.

Cause and Effect Analysis was also completed on the Key X’s to determine the impact of

each of the root causes.

Summary of Analysis:

The Analysis concluded that a number of factors where contributing to the ‘rework’. These

included the following:

(1) Different expectations and needs across functions reviewing changes e.g. experts in the

change finding very technical detail acceptable, while other functions who are not

experts in the process require less technical detail.

(2) The system by which the changes are processed encourages a ‘collaboration’ approach

to reviewing changes rather than ‘first time quality’ by the personnel initiating the

change request.

(3) Further training re products/processes by the department would reduce rework

regarding ‘clarification’ of change and change detail.

SIx Sigma Project