Introduction and conceptual frame of referenceThe period 1990 to 1993 saw a profound transformation within Swedish industry. This transformation took place in response to the deepest recession experienced in decades. Companies responded by searching for different methods to increase their competitive power. One approach in these efforts was to increase efficiency through the use of different comprehensive quality concepts. Different advocates propounded different approaches, e.g. total quality management, different quality awards or ISO 9000. In Sweden, a widespread debate regarding the suitability and potential of the different concepts arose. The debate concerning the ISO 9000 system soon became polarized: one group in favour of the system and one group who saw the system as an inadequate tool for increasing the competitiveness of companies. Whatever the standpoint taken in this debate, it seems today to be an indisputable fact that ISO 9000 is a powerful instrument which cannot be disregarded; no previous change concept has been able to show, in such a short time, an equally large number of companies having implemented, or being on the point of implementing, such a system.From the general perspective of organizational theory, the introduction of a quality system involves a major change. There are several driving and restraining factors influencing such a change. In view of the extent to which companies are today implementing the ISO 9000 system, it is extremely important to study and analyse different aspects of this change work from a societal macro-economic perspective as well as from a micro-economic company perspective. Additionally, there are a number of issues that need to be highlighted and treated from the viewpoint of different social perspectives to increase our understanding of ISO implementation in companies.The introduction and implementation of a new quality system makes changes necessary in the companies concerned. These changes usually involve a change in behaviour, in turn creating a need for information and communication [1,2]. Within "forcefield" theory, Lewin[3] regards every change behaviour as a result of the balance between driving and restraining forces. Factors acting against change in this respect are: group norms, fear of change, ingrained behaviour and member complacency. According to Lawrence[4], there are three general sources of resistance to change: uncertainty about the