Quality Concept and Quality Management

1-what is Quality

Quality is the degree to which a commodity meets the requirements of the customer at the start of its life. (ISO 9000)

or Quality is the

1-Confirmation to Specification

2-Fitness for Purpose

3-Customer Satisfaction

4-Right at the first time

5-Zero Defect

6-Value of Money

7-Reducing variation

8-Customer delight

  1. Design Quality-

The design quality is basically the level of characteristics that the designers specify for a product. example -Material Grade, Tolerance, Special features, and high performance are characteristic associated with the high-quality product are characteristics associated with the term, high-quality products.

  1. Quality Confirmation-

After the level of design, quality has been determined, the product characteristics are formed into drawings and specifications. The manufacturing engineers will use the drawings and specifications to develop manufacturing specifications and design the operations necessary to produce the product. This includes the floor layout, machinery, test sets, tools, and other equipment. A plan for the number of employees required may also be included. The quality engineer works with the manufacturing engineer to make the quality system and maintenance of conformance quality an integral part of the manufacturing process. Any product checks, process checks or quality improvement activities should be an inherent part of the process. Conformance quality may be defined as the degree of adherence of the product characteristics to the design drawings and specifications. The objective of a quality program is to have a system that will measure and control the degree of product and process conformance in the most economical way


A quality system is a mechanism that coordinates and maintains the activities needed to ensure that the characteristics of products, processes or services are within certain bounds. A quality system involves every part of an organization that directly or indirectly affects these activities. Typically, the quality system is documented in a quality manual and in the associated documents that specify procedures and standards.

2.1 Basic Elements in a Quality System

There are three basic elements in a quality system: Quality Management, Quality Control, and Quality Assurance.

Quality Management: Quality management is the means of implementing and carrying out quality policy. They perform goal planning and manage quality control and quality assurance activities. Quality management is responsible for seeing that all quality goals and objectives are implemented and that corrective actions have been achieved. They periodically review the quality system to ensure effectiveness and to identify and review any deficiencies.

Quality Control: The term quality control describes a variety of activities. It encompasses all techniques and activities of an organization that continuously monitor and improve the conformance of products, processes or services to specifications. Quality control may also include the review of processes and specifications and make recommendations for their improvement. Quality control aims to eliminate causes of unsatisfactory performance by identifying and helping to eliminate or at least narrow the sources of variation. Quality control has the same meaning as variation control of product characteristics. The objective of a quality control program is to define a system in which products meet design requirements and checks and feedback for corrective actions and process improvements. Quality control activities should also include the selecting and rating of suppliers to ensure that purchased products meet quality requirements.

Quality Assurance: The term quality assurance describes all the planned and systematic actions necessary to assure that a product or service will satisfy the specified requirements. Usually, this takes the form of an independent final inspection. The distinction between quality control and quality assurance is stated in an ANSI/ASQ standard: “Quality control has to do with making quality what it should be, and quality assurance has to do with making sure quality is what it should be.” The quality assurance function should represent the customer and be independent of the quality control function, which is an integral part of the manufacturing operation.

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