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This paper aims to analyse and show the influence on European companies' performance of the two most important models for quality management (QM) practice popularised in recent years: the ISO 9000 and the European Foundation for Quality Management models.

The methodology is a qualitative survey carried out in Spain using the Delphi method, based on previous research work. The results of this research were analysed and triangulated with the results of other surveys carried out previously, as well as with information gathered during several in‐depth interviews of the experts that participated in the Delphi panel.

In the opinion of the panel of experts, the implementation of QM models in the studied region has had a positive influence on company results, mainly through the improvement of operations, efficiency and the costs of companies' internal activities.

This is one of the first papers that show us the different impact of this kind of QM model in Europe.

The purpose of this paper is to analyse which are the motivations for implementing two of the most important models for Quality Management practice popularized in recent years – ISO 9000 and EFQM models.

This paper provides a qualitative survey carried out using the Delphi methodology, triangulated with the results of other surveys carried out previously, as well as with the information gathered by means of several in‐depth interviews carried out with the experts that participated in the Delphi‐panel.

The paper finds strong consensus among experts of different backgrounds that external factors cause companies to implement the ISO 9000 standard. On the other hand, reasons for implementing TQM systems seem to be more varied.

The research in this paper is limited to Spain; studies in other countries should be conducted to compare the results obtained.

In this paper there is a greater understanding of the motivation to implement ISO 9000 and EFQM based on the opinion of managers, consultants, academic specialists and members of institutions.

The paper finds a new methodology for examining the motivation to implement ISO 9000 and EFQM.

In an economic environment characterized in recent years by globalization and the integration of economic processes, standardization in management systems has had a high growth. In this context, there has been a remarkable increase in certain standards, or norms, issued by international organizations. Among these standards, two main groups stand out, both issued by the International Organization for Standardization (ISO): one for quality management systems – the family of ISO 9000 standards – and the other for environmental management systems – the ISO 14000 standards. This paper aims to analyze the world wide diffusion process of these two standards, using data provided by the ISO itself.

The methodology proposed is developed in four separate phases. The first two analyze the diffusion model over time with a model based on the logistic curve proposed by Franceschini et al. The next two phases analyze whether the diffusion process has proceeded in a relatively homogeneous way in the different sectors of activity. In order to do that, the use of indices of concentration and instability has been carried out.

The conclusion is that the diffusion of both standards is very similar – in general and in terms of the different sectors. This result coincides with certain hypotheses formulated in the theoretical literature.

This is the first paper where it can be demonstrated that, world‐wide, both the ISO 14000 and the ISO 9000 standards have followed very similar patterns of diffusion in their expansion.

Significant interest in Integrated Management Systems (IMS), as a key area within ISO-related Management System Standards (MSS) literature, has been evident from both academia and industry over the past three decades. This study aims to map the evolution and current state of IMS research and propose possible directions for future studies.

A comprehensive content and bibliometric analysis of 846 documents from the Scopus database across the period 1995 to 2023 was conducted. This included performance analysis to track publication trends and identify key contributors, and content analysis to specify dominant research methodologies and the MSS most commonly integrated. Furthermore, science mapping techniques—such as co-authorship networks, keyword co-occurrence analysis, and bibliographic coupling—were utilized to outline the collaborative networks and the conceptual and intellectual structure of the field.

The study identifies three principal IMS research themes: the practical implementation of IMS, their role in promoting sustainability and social responsibility, and their impact on continuous performance improvement. It also highlights the field’s evolution and key research constituents—including influential works, prolific authors, leading academic institutions and countries, and top publishing journals. It further reveals that IMS research exhibits strong collaboration across authors and countries, and a rich methodological plurality, notably with a marked increase in empirical surveys in recent years. Additionally, it identifies the most frequently referenced MSS for integration, prominently featuring ISO 9001, ISO 14001, and ISO 45001/OHSAS 18001.

This study is original in its application of a dual analytical approach—bibliometric and content analysis—to provide a holistic overview of IMS research. It offers new insights into the integration of diverse MSS and proposes several promising paths for future research. Among the most prominent are standardizing IMS fundamental specifications, conducting more empirical research with advanced methods to evaluate the effects of MSS integration, providing practical support for organizations in IMS implementation through tailored methodologies and tools, and exploring the potential of Industry 4.0 and 5.0 technologies to advance IMS practices.

After analysing a sample of 442 of the Spanish biggest manufacturing companies, some evidence about the influence of total quality management (TQM) on the companies’ operating performance has been obtained. However, companies applying TQM together with the ISO 9000 standards did not show positive results. This fact leads to the consideration that, despite the beliefs about ISO 9000 as a good first step in the way of implementing TQM, once implemented, some of the ISO 9000 principles are contradictory with TQM philosophy. These not congruent systems applied together would drive the company to obtain less benefits than the use of only one of them. The study concludes that when ISO 9000 and TQM are applied simultaneously, the resultant benefits to the company are not better than those experienced if either system were applied in isolation.

The purpose of this paper is to dissect the diffusion of the number of organizations that implemented multiple management systems (MSs), considering the International Organization for Standardization (ISO) 9001, ISO 14001 and OHSAS 18001 standards (quality, environment and safety) in the South European countries: Italy, Portugal and Spain. In addition, based on the data collected, forecasting models were developed to assess at which extent the multiple certifications are expected to occur in each studied country.

Data concerning the evolution of the amount of multiple MSs in Italy, Portugal and Spain were collected for the period between 1999 and 2015. The behavior of the evolution of the number of MSs over the years was studied adopting both the Gompertz and the Logistic models. The results obtained with these two models were compared and analyzed to provide a forecast for the next years.

The diffusion throughout the years of the number of MSs presents an S-shaped behavior. The evolution of the amount of MSs in countries with a lower saturation level are properly fitted by the Gompertz model whereas the Logistic model fits more accurately when considering countries with a larger saturation level.

The data related to the early years are not available in some of the countries. To overcome this shortcoming missing data were extrapolated from the data set provided by the annual ISO survey. Additionally, the integration level attained by each company was not assessed and, on this regard and in the scope of this paper, an integrated management system is understood as implemented when organizations have multiple MSs implemented.

The results provide a cross-sectional portrayal of the diffusion of MSs certifications in the South European countries and enable a forecast for the trend in the next years.

This study aims for the first time, to the best of the authors’ knowledge, to analyze the diffusion of multiple MSs throughout the years.