On-demand transportation, such as demand-responsive public transit (DRT), is gaining prominence as a mobility service tailored to passengers’ needs, offering flexibility in routes, pick-up/drop-off locations, and timing. This study aims to delve into the challenges and technological advancements within the DRT system, focusing on its application and effectiveness in various European Union states. The research first applied a systematic literature review using the PRISMA methodology with a PEO framework. Then, the research aims to provide information on how demand-responsive transportation operates in Central Eastern European countries by collecting and analyzing the characteristics of DRT service processes with a business process modeling approach. The findings aim to inform policymakers and stakeholders about the effectiveness and potential of DRT systems, facilitating informed decision making and policy formulation.