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This paper aims at studying the level of implementation of ISO 9001 in Jordanian consulting engineering firms and to what extent does the implementation effectiveness affect the success of the construction projects. Moreover, the paper seeks to identify the Critical Success Factors (CSFs) that directly influence the ISO 9001 effectiveness in Jordanian consulting engineering firms.

A questionnaire was constructed and distributed to a sample of 125 employees from six ISO 9001-consulting firms. After collecting the data, exploratory factor analysis was utilized to validate the latent constructs (CSFs, ISO 9001 Effectiveness, and Firm Performance).

The findings suggest that firms experience a high level of ISO 9001 effectiveness. Moreover, among the five identified CSFs; employee attributes, external environmental pressure and quality system attribute had a significant impact on the ISO 9001 effectiveness, while internal motivation and firm attributes were insignificant.

The significance of this study lies in exploring such topic in the developing countries, since most of current studies were focused on developed contexts such as the USA and UK. Therefore, this research acts as a response to calls in the current literature regarding considering different industries and contexts.

The purpose of this paper is to identify and theoretically explain the general barriers to adopting lean construction practices in the construction industry regardless of the country or the company size or specialization, and to suggest future research studies in this field.

Systematic literature review was conducted to identify and explain the list of the barriers from scientific sources that were published before May 2018.

Twenty-nine barriers were identified and explained, and a proposed model to classify the sources of the barriers was chosen. Seventeen barriers were classified as internal environment-related barriers, five were labor-related, three were materials-related and four were exogenous barriers. In addition, some directions for the future research studies were suggested.

The barriers that are related to the advanced levels of lean construction (LC) implementations, to a specific location or to a specific LC tool were excluded.

This review will help to increase the understanding of the new concept of LC and might help to encourage the adoption of LC practices. Also, it might be useful for identifying the strategies to achieve successful application of these practices.