Open Science Trails (OSTrails) aims to improve the way we plan, track, and assess scientific knowledge. It wants to go beyond current methods, working with different countries and themes to make existing systems better and connect key parts for research and innovation (R&I). The goal is to create a practical, open, and FAIR (Findable, Accessible, Interoperable, and Reusable) system for European scientific research. OSTrails involves major players in Data Management Plans, FAIR Assessment Tools, and Scientific Knowledge Graphs to set standards and make data plans more efficient across Europe.