Bridging Models and Practice- Action Rules in a DEMO-Based Low-Code Platform

Municipalities face rising demands for transparency and efficiency while still relying on legacy systems that are hard to adapt to new regulations. Low-code/no-code platforms promise relief but often lack theoretical grounding, leading to fragmented solutions. This paper presents the Dynamic Information System Modeller and Executor (DISME), a DEMO-based low-code/no-code platform that executes organizational models directly at runtime. DISME is being applied in the Smart Islands Hub project’s Test-Before-Invest services, with a pilot implementation of the Municipality Hearings Process (MHP). We show how DISME parametrizes roles, transactions, entities, and user interactions, and highlight the role of Action Rules in defining executable business logic such as agenda slot generation and hearing rescheduling. A usability study with municipal staff confirmed the value of adaptive user interfaces designed with the GenderMag framework. The case study demonstrates three main contributions: (i) the feasibility of executable DEMO models in practice, (ii) the expressiveness of extended Action Rules, and (iii) the added value of adaptive UIs. Together, these results advance executable enterprise modelling and provide practical insights for digital transformation in public administration. This paper is accepted for publication in the CEUR-WS proceedings of the PoEM 2025 Conference. The final, camera-ready version will appear in the corresponding CEUR-WS volume. This Zenodo record provides early access and a citable reference prior to formal publication. Note: Accepted for publication in CEUR-WS (PoEM 2025)