Field experiments are a central method in science, particularly in engineering disciplines. Their execution is often resource-intensive and practically non-reproducible due to constantly changing field conditions. Therefore, a documented and structured approach to field data collection is essential to ensure that research data remain sustainable, traceable, and reusable over long term. The goal of the project is to establish uniform documentation and standardized data provision to guarantee the long-term discoverability, clarity, and reusability of research data. This will be achieved through the development of a structured data management system based on a harmonization process via a bottom-up approach, informed by identified requirements from the Lower Saxony research community. The practical relevance of the approach is ensured through the application of three real-world use cases (robotics, transportation infrastructure, coastal protection). The LWI contributes concrete requirements from its field research in coastal engineering to the project, thereby supporting the further development and refinement of the existing models. Thus, the project not only strengthens research practice within its own domain but also creates a sustainable, scalable foundation that can serve as a reference for other research fields.