This thesis explores project management information system (PMIS) when integrated into other available software tools and information technology (IT) systems to enhance overall effectiveness in project management, communication, and data flow, particularly in com-plex and multi-stakeholder projects. A systematic literature review (SLR) was carried out for the present study using the Preferred Reporting Items for Systematic Reviews and Me-ta-Analyses (PRISMA) framework to ensure completeness and a structured approach in analysis. The integration categories that are emphasized include collaboration and commu-nication platforms, integrated analytical and decision-making support tools, and integrated resource and process management systems. The integration of these features can improve project coordination and interoperability among remote or geographically dispersed teams through real-time data sharing.