Types of Quality Management Systems Explained (ISO, TQM, Six Sigma)

Organisations can take different approaches to managing quality, improving processes, reducing defects, and building a culture of continuous improvement.

Three of the most widely ISO 9001, Total Quality Management (TQM), and Six Sigmaorganisation's culture, and Six Sigma provides a systematic approach to solving measurable process problems.

Understanding these differences can help

Understanding the Different Approaches to Quality Management

organisational needs.

An formal frameworkstandardise its quality processes, a that involves employees across departments, or a to address recurring defects and process variation.

The important question is therefore not simply but rather:

What quality challenge is the

ISO 9001: A Structured Framework for Quality Management

recognised framework for establishing, implementing, maintaining, and continually improving a. Unlike TQM and Six Sigma, ISO 9001 is a formal international standard against which

organisations meet customer and applicable regulatory requirements.

An ISO 9001-based QMS typically Customer focusProcess-based quality managementRisk-based thinkingDocumented informationPerformance evaluationContinual improvementISO 9001 can be particularly valuable for quality management systemrecognised certification.

It provides the foundation and structure for managing quality while allowing Total Quality Management (TQM): Making Quality Everyone’s Responsibility

organisation.

This means involving functions such as production, procurement, engineering, sales, customer service, and management in identifying problems and improving how work is performed.

What Does TQM Focus On?

emphasises:

• by understanding and consistently meeting customer expectations.

• by encouraging employees to identify problems and contribute to improvements.

• by continuously reviewing how work is performed.

• to establishing quality as an Cross-functional collaborationContinuous improvementTQM is particularly valuable for quality culture rather than relying primarily on procedures, inspections, or the quality department.

  identify opportunities for improvement and take ownership of quality outcomes.

  cloud based quality management system (QMS))organisation's wider quality strategy.

  Six Sigma is designed for organisations that need to understand It focuses on reducing variation and defects by analysing process performance, identifying root causes, and implementing improvements that can be measured and controlled.

  What Does Six Sigma Focus On?

  Process variationDefect reductionData-driven decision-makingRoot cause analysisProcess capabilityContinuous improvementSix Sigma commonly uses the methodology for improving existing processes:

  Six Sigma is particularly useful when organisations face measurable problems such as high defect rates, excessive process variation, rework, waste, or inconsistent process performance.

  It can complement an existing quality management system by providing a structured methodology for solving specific and measurable process problems.

  The most effective quality strategy is not necessarily about choosing. It is about understanding what each approach can contribute and using it where it creates the most value.

  For many organisations, the approaches can work together rather than independently.

  quality gap you need to address

  repeatable processes, engaged people, measurable performance, and a systematic way to improve

  About the Author

  QualityPro is an enterprise-ready digital QMS platform designed for multi-site manufacturing organizations. With scalable cloud architecture, end-to-end quality lifecycle management, and compliance with global standards like ISO 9001 and IATF 16949,

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