Six Sigma Quality

Six Sigma approach to quality and productivity improvement

Six Sigma emerged in the 1990s as a registered trademark and service mark of
Motorola, Inc. as a business process improvement approach searching to find and
eliminate causes of defects and errors, reduce cycle times and cost of operations,
improve productivity, achieve higher asset utilization and better meet customers
expectations. It is based on a simple problem solving approach entitled "DMAIC",
which stands for Define, Measure, Analyze, Improve, and Control, which incorporates
a wide range of statistical and other kinds of quality improvement tools and techniques.
The focus of Six Sigma is on improving four key initiatives: Quality, Productivity,
Cost, and Profitability. Bill Smith, a reliability engineer at Motorola, Inc. is credited
with originating the concept during the mid 1980s. This concept was subsequently
implemented at Motorola, Robert Galvin, CEO. Six Sigma was also
implemented at General Electric Company by its former CEO Jack Welch who made
it a popular approach to quality improvement initiative in mid 1990s. Since then, Six
Sigma has been appealing to many top business executives, as compared to Total Quality
Management (TQM), because of its focus on measurable bottom-line results and its
disciplined fact-based approach to quality problem solving.