An essential element of our overall company policy is to supply optimum quality for the respective purpose and ... ... to operate an active quality assurance system and ongoing improvements to same. Constant improvement is a permanent objective of our company. The basic prerequisite for this is a strong quality management system. For example the QM system, which Knauf introduced in Germany in 1994 meets the requirements defined in DIN EN ISO 9001:2000. Knauf has a QM system that functions well and which has the purpose of ongoing optimization according to the assessment of the certification office LGA InterCert. The effectiveness and application of the QM system is examined by ascertaining customer satisfaction as well as by means of analyses and evaluation of the processes for product implementation on the basis of internal and external audits. The information thus gained form the basis for constant improvement of the QM system.