The concept of “Stakeholders” has evolved since its popularization by Freeman in the mid 1980s. Since then,interest in stakeholders has grown within the field of project management andit has become an important research topic. Many researchers have focused on identifying and analyzing stakeholders with the aim of developing tools tofacilitate their strategic management. However, some researchers have highlighted limitations of the key processes of identification and analysis proposed, due in part to the growing number and type of project participants. Moreover, few studies take time into account when identifying the many various stakeholders involved over aproject’s lifetime. In light of this, this article proposes an iterative and longitudinal approach based on an innovative index - media prominence score -which can be used to define key moments of the cycle of analysis.