The impact of the organisational structure and project organisational culture on project performance in Slovenian enterprises

Analyses of completed projects show that a significant number of projects exceed the planned time and costs, consequently reducing the benefits. Among many causes of project failure, it is widely recognised that organisational culture has an impact on project performance. The goal of the research presented in this article was to identify the level of project organisational culture in Slovenian enterprises. We also analysed the strength of the impact of the culture on project execution. The research was focused on the top and line management's attitudes and some other factors connected with managers' attitudes (following the internal regulations, respecting the project manager's formal authority). We also investigated the most common project organisation types and the correlations among the organisation, culture and project performance. The research showed a high level of project organisational culture and a high impact level of measured culture factors on project performance. An increasing level of project manager authority in different organisation types positively impacts on several cultural dimensions and also has a direct impact on the project's performance.