Abstract
Sustainability is one of the most important challenges of our time. Projects play a pivotal role in the
realization of more sustainable business practices and the concept of sustainability has also been linked to
project management. However, how managers of projects consider sustainability in their operational daily
work is still to be explored. This paper uses Q-methodology to investigate the consideration of
sustainability aspects in the decision making processes of project managers. The research question was
How are dimensions of sustainability considered in the decision-making processes of project managers in
relation to the triple constraint of time, cost and quality?
Based on the Q-sort of selected respondents, the study found that the consideration of sustainability
principles is underrepresented, compared to the triple constraint criteria. However, the analysis of the
individual Q-sorts revealed four distinct perspectives that differ significantly in their consideration of
sustainability principles and triple constraint criteria.