Formalisation of Code Lists and Their Values – The Case of ISO 19152 Land Administration Domain Model
Abdullah KARA, Alexandra ROWLAND et al
A code list in Unified Modeling Language (UML), a simple list of values without any
structure, can be employed as a simple data type to further capture the semantics of a domain.
The code list values as used in international standards (e.g. ISO and OGC) are generally
presented without definition, reference to the source of a definition, multi-lingual alternative term support and semantic relationships (e.g. hierarchical, associative). Moreover, managing,
implementing, and maintaining UML code lists can be considered as a difficult task since they generally do not provide structured and semantically enriched values. This is also true in the
case of ISO 19152:2012 Land Administration Domain Model (LADM), which is currently
under systematic review and adding more content, meaning and structure to code list values
could be considered an improvement.
Event: The 10th Land Administration Domain Model Workshop
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