Influence of Contingency Factors on the Application of Quality Tools

The subject of this paper is constitution of a model of critical contingency factors for the application of quality tools and its experimental confirmation on the products in-group of engine and tractor manufacturers. The expected relations between contingency factors and the application of quality tools are confirmed and statistical models, describing the influence of technical and organizational factors on quality tools implementation and choice indicators, are given. Results of the survey showed that factors identified in the proposed model have an influence on the choice of quality tools, and laws of their influence are given as regression equations. Practical benefits from this paper are: a) it is possible to determine the necessity of application of a certain quality tool prior to it's implementation; b) it is possible to determine the need for a wider range of application of a certain quality tool during the process of its implementation; c) it is possible to determine a set and range of application of required quality tools before the production of new products starts and d) in case of failure of application of a certain quality too, it is possible to discover its possible causes.