Chronological Models (cMod) : towards consistent lifecycle information management

The cMod framework introduces a novel approach to managing chronological construction models, integrating lifecycle phases, update tracking, and spatial context for enhanced Building Information Modeling (BIM) to improve model consistency. Leveraging ontologies—the Ontology for Chronological Construction Processes (OCCP) and the Ontology for Updates and Linked Data (OULD)—the framework unifies these into a Chronological Model ABox (CMA), managed by the cMod Manager (cMM) software. The Area Model concept provides a base for model aggregation. Minimal examples demonstrate phase assignment, update chains, and validation, tested with small-scale IFC models. While promising, limitations include untested scalability, rudimentary Git integration, and conceptual georeferencing. Future work aims to refine querying, versioning, and railway applicability, potentially aligning with the W3C Provenance Ontology (PROV-O). cMod offers a foundation for lifecycle management, aiming to bridge static BIM with dynamic timelines

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Participatory infrastructure planning through data-driven multimodal visualisations

In infrastructure planning processes, most participants only get to see a limited, pre-filtered view of the project, dictated by their specific role in the workflow and the software they use. Changes or suggestions they make based on their understanding or from their point of view will almost inevitably contradict decisions made in another part of the project. Ideally, when this happens, their tools should immediately warn them about the consequences and conflicts introduced by their decision, in the moment that a change is made. In this paper, we thus present a system design for how to create highly responsive, data-driven multimodal visualization tools that focus on one specific part of the planning process, but keep the participant informed on the requirements of the entire project. We show a prototype based on this design and discuss challenges and necessary developments to implement such systems in practical contexts