The Definition of the Quality:
 
ISO 9000 Quality Management Standards are defined “Conformity to the Aim, Security at Usage"

The Standards That Form ISO 9000/ 1994 Quality Standards Series:

ISO 9000: Selection and Use of Quality Management And Quality Assurance Standards: This standard provides you with general information on how to use the three standards ISO 9001, ISO 9002 and ISO 9003

ISO 9001: Quality Management Systems – Quality Assurance Model at the Design/ Development, Production, Facility and Service

ISO 9002: Quality Management Systems – Quality Assurance Model at the Production and the Facilities

ISO 9003: Quality Management Systems - Quality Assurance Model For The Final Inspections and Experiments

ISO9004 : Guidelines for Quality Management and Quality Management System Components - provides guidelines for both the effectiveness and efficiency of the QMS.