Currently, there is no standardised process for monitoring and evaluation of nature-based flood defenses pilots in Dutch rivers and floodplains. Thus, piloted technologies cannot be compared fairly with other nature-based flood defense technologies and conventional solutions. This study developed such a process by way of a monitoring and evaluation framework, using a research-by-design approach. This monitoring and evaluation framework is incorporated into a knowledge base that was developed in parallel to store the results of monitoring and evaluating and to effectively share knowledge about each pilot for future reference. The primary intended users of the knowledge base are researchers, therefore requirements were elicited via interviews with matter experts. Findings from the interviews, combined with literature review, formed the basis of design and development for the monitoring and evaluation framework and knowledge base. A second round of interviews was held for iterative improvements of this design via feedback and subsequent revision. In total, three design-feedback iterations were done. The last provided validation results of the improved solution. The main findings indicate that a knowledge base approach has merit and it is suggested that Rijkswaterstaat adopt and improve this solution as a template within their innovation process. The innovation process at Rijkswaterstaat is being developed right now and has incorporated evaluation of pilots. Additional results are a large number of possible avenues for further development and future research.

This Master Thesis research addresses strategies for deploying sustainable aircraft technologies, with the primary goal to accelerate sustainability transitions within the aviation industry. The focus of the research is on analysing hydrogen and ultra-efficient aircraft technologies in comparison to a conventional aircraft, with 50% SAF drop-in, as the benchmark technology.

The Technological Innovation System (TIS) framework, viewed from a company perspective, serves as the basis for this research. The TIS framework can be defined as "the network of actors interacting within the industry, subject to certain institutions and involved in the generation, diffusion, and utilisation of a novel innovation." Through the examination of seven essential dimensions, referred to as TIS building blocks, the most significant bottlenecks impeding the implementation of hydrogen and ultra-efficient aircraft have been identified.

This knowledge has been utilised to create a three-phased deployment strategy for both sustainable aircraft technologies, considering timing and scale. The research scope has focused on the regional market segment, using a 70-90 passenger Embraer 175 aircraft design as reference aircraft. Key insights from the research have led to proposed recommendations to industry stakeholders, policy-makers and academics.