Modeling data dissemination processes as part of the future LADM development

Land administration (LA) is dynamic, and it cannot be understood, built or improved unless the processes associated with it are understood. One of the core standards in the domain of LA, namely ISO 19152 Land Administration Domain Model (LADM) provides conceptual data models for land administration systems (LASs). However, it does not cover all LA functions in its current edition and is currently under revision to include more LA-related parts such as land registration, marine georegulation, land valuation, spatial planning and implementation. Implementation aspects are expected to include technical models and processes with active participation of Open Geospatial Consortium (OGC). Notably, no official progress was yet made regarding the Part 6: Implementation, therefore this paper aims to present viability of the proposed methodology for modeling LA data dissemination processes on one of the most common use cases in Croatian LAS. The utilized methodology includes steps such as identifying use case, formalization of current state of the process, process breakdown and lastly optimization and formalization of improved state of the process. During the process breakdown step of the said methodology, process elements were grouped into three groups namely, actors, activities and resources. Furthermore, it was determined that actors and resources can be modeled with existing LADM classes, whereas activities could not. Moreover, two solutions for extending LADM with process-related classes were identified in journal articles, but since OGC participation is announced for the development of Part 6, it was expected to examine OGC process related standard, namely API-Processes-Part 1: Core. Classes which relate to process activities were compared in terms of attribute analysis. Differences and similarities were determined, and it was discussed that process-related extension should include class for activities, whereas attributes might vary depending on the system requirements a