Quality characteristics in ISO 9000 Standards

Quality characteristics in ISO 9000 Standards

Any feature or characteristic of a product or service that is needed to satisfy customer needs or achieve fitness for use is a quality characteristic. When dealing with products the characteristics are almost always technical characteristics, whereas service quality characteristics have a human dimension. Some typical quality characteristics are given below.

Product characteristics

1. Accessibility Functionality Size

2. Availability Interchangeability Susceptibility

3. Appearance Maintainability Storability

4. Adaptability Odour – Strength

5. Cleanliness Operability -Taste

6. Consumption Portability – Testability

7. Durability Producibility Traceability

8. Disposability Reliability – Toxicity

9. Emittance Reparability Transportability

10. Flammability Safety – Vulnerability

11. Flexibility Security – Weight

Service quality characteristics

1. Accessibility Credibility – Honesty

2. Accuracy Dependability Promptness

3. Courtesy Efficiency - Responsiveness

4. Comfort Effectiveness Reliability

5. Competence Flexibility – Security

These are the characteristics that need to be specified and their achievement controlled, assured, improved, managed and demonstrated. These are the characteristics that form the subject matter of the product requirements referred to in ISO 9000. When the value of these characteristics is quantified or qualified they are termed product requirements. We used to use the term quality requirements but this caused a division in thinking that resulted in people regarding quality requirements as the domain of the quality personnel and technical requirements being the domain of the technical personnel. All requirements are quality requirements – they express needs or expectations that are intended to be fulfilled by a process output that possesses inherent characteristics. We can therefore drop the word quality. If a modifying word is needed in front of the word requirements it should be a word that signifies the subject of the requirements. Transportation system requirements would be requirements for a transportation system, Audio speaker design requirements would be requirements for the design of an audio speaker, component test requirements would be requirements for testing components, and management training requirements would be requirements for training managers. ISO 9000 requirements are often referred to as quality requirements as distinct from other types of requirements but this is misleading. ISO 9000 is no more a quality requirement than is ISO 1000 on SI units, ISO 2365 for Ammonium nitrate or ISO 246 for Rolling Bearings. The requirements of ISO 9000 are quality management system requirements – requirements for a quality management system.