Pengendalian kualitas dengan menggunakan Six Sigma (6σ) memiliki
tujuan dalam mendukung kesuksesan perusahaan adapun Menurut Heizer & Render
(2017: 221) The term Six Sigma, popularized by Motorola, Honeywell, and General
Electric, has two meanings in TQM. In a statistical sense, it describes a process,
product, or service with an extremely high capability (99.9997% accuracy). Six
Sigma is a comprehensive system a strategy, a discipline, and a set of tools—for
achieving and sustaining business success:
- It is a strategy because it focuses on total customer satisfaction.
- It is a discipline because it follows the formal Six Sigma Improvement Model
known as DMAIC. This five-step process improvement model (1) Defines the
project’s purpose, scope, and outputs and then identifies the required process
information, keeping in mind the customer’s definition of quality; (2) Measures
the process and collects data; (3) Analyzes the data, ensuring repeatability
(the results can be duplicated) and reproducibility (others get the same result);
(4) Improves , by modifying or redesigning, existing processes and procedures;
and (5) Controls the new process to make sure performance levels are
maintained. - It is a set of seven tools that we introduce shortly in this chapter: check sheets,
scatter diagrams, cause-and-effect diagrams, Pareto charts, flowcharts,
histograms, and statistical process control.
Dari penjeleasan diatas menurut Heizer & Render pengendalian kualitas Six
Sigma dipopulerkan oleh Motorola Honeywell, and General Electric, pengendalian
kualitas Six Sigma adalah strategi konferhensif untuk meningkatkan bisnis
perusahaan dengan fokus terhadap kepuasan konsumen adapun dalam penerapan
Sx Sigma dengan DMAIC yaitu Defines, Measure, Analyze, Improves, & Control.
Dan alat/perangkat yang digunakan yaitu seven tools dari quality control.