Getting Good Samples and Data

 Statistics for Six Sigma Made Easy

by Warren Brussee

Issues in Getting Good Data

 Manufacturing Samples and the resultant data have to represent the total population, yet processes controlling the population are often changing dramatically, due to people, shift, environment, equipment, etc.
Sales Sales forecasts often use sampling techniques in their predictions. Yet the total market may have many diverse groups to sample. These groups may be affected by many external drivers, like the economy.
Marketing What data should be used to judge a marketing campaign’s effectiveness, since so many other factors are changing at the same time?

Software Development What are the main causes of software crashes and how would you get data to measure the “crash-resistance” of competing software?
Receivables How would you get good data on the effectiveness of a program intended to reduce overdue receivables, when factors like the economy exert a strong influence and change frequently?
Insurance How can data measuring the satisfaction with different insurance programs be compared when people covered by the programs are not identical?


Advanced Product Quality Planning


 Product Quality Planning is a structured method of defining and establishing the steps necessary to assure that a product satisfies the customer. The goal of product quality planning is to facilitate communication with everyone involved to assure that all required steps are completed on time.
Effective product quality planning depends on a company’s top management commitment to the effort required in achieving customer satisfaction. Some of the benefits of Product Quality Planning are:
• To direct resources to satisfy the customer.
• To promote early identification of required changes.
• To avoid late changes.
• To provide a quality product on time at the lowest cost.
Each Product Quality Plan is unique. The actual timing and sequence of execution is dependent on customer needs and expectations and/or other practical matters. The earlier a work practice, tool, and/or analytical technique can be implemented in the Product
Quality Planning Cycle, the better.
 Ref: Advanced Quality Manual Planning Manual ( AIAG)


Kaizen Adapting the culture


The Kaizen culture is one that requires discipline and dedication. It is not something that is isolated to management or non-management staff. It is a way of doing business. In adapting TFS culture to The Toyota Way, we should consider matching:
• Job related requirements, including:
o Ways to act
o Ways to think
o Key accountabilities
• Corporate goals
• Staff training and development


Human Resources will play a large roll in the facilitation and management of these activities. Translating The Toyota Way into meaningful actions is necessary to encourage and develop the people of TFS. Moments of truth where staff should encounter The Toyota Way are:
• Corporate, Business and Personal goals
• Induction and Orientation
• Job descriptions
• Training and Development
• Policies and Procedures