The Mcgraw-Hill 36-Hour Course : Lean Six Sigma by Sheila Shaffie & Shahbaz Shahbazi

Author:Sheila Shaffie & Shahbaz Shahbazi
Language: eng
Format: epub
ISBN: 9780071750851
Publisher: McGraw-Hill Companies

Table 2.9 Case Study Time Stamps

CHAPTER 3

ANALYZE

By the time the team reaches the Analyze phase (see Figure 3.1), the business case for the project has been approved, potential resistance from key stakeholders has been reduced, the process has been mapped, and critical process data have been collected. The end goal of this phase is to take all the collected information and data and identify the root cause of the problem. The Analyze phase is divided into three steps:

Figure 3.1 Overview of Analyze Phase

Step 9: Baseline the process’s current capability—how good is our process?

Step 10: Define the performance objectives for the process—how good do we need to be?

Step 11: Identify sources of variation—what are the key drivers of the problem

The tools that we will use in the Analyze phase will be driven in large part by the goals of our project. If the focus is on improving cycle time, eliminating inventory, or standardizing a process, the team will rely more on the Lean tools and principles for analysis. If the focus is on improving the quality of a service, determining optimal pricing, or reducing losses, Six Sigma’s analytical tools will be better suited. The project type drives the usage of the tools.

The key deliverables in this phase are:

• Determination of the data distribution type: normal or nonnormal

• The capability of the process: z score and DPMO

• Establish an improvement goal or performance objectives

• Determination of the stability, shape, center, and spread of the process

• Determination of the vital few Xs that affect the project Y

• Determination of which Lean tools to use to identify process bottlenecks

• Recommendations for the Improve phase

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