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Creating and validating Object-Oriented Geographic Data Models: modeling flow within GIS / A. Glennon in Transactions in GIS, vol 14 n° 1 (February 2010)  

Public [article]  inTransactions in GIS > vol 14 n° 1 (February 2010) . - pp 23 - 42 Titre : Creating and validating Object-Oriented Geographic Data Models: modeling flow within GIS Type de document : Article/Communication Auteurs : A. Glennon, Auteur Année de publication : 2010 Article en page(s) : pp 23 - 42 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées [Termes IGN] migration animale [Termes IGN] migration humaine [Termes IGN] modèle conceptuel de données localisées [Termes IGN] modèle conceptuel de flux [Termes IGN] modèle orienté objet [Termes IGN] système d'information géographique Résumé : (Auteur) Object-oriented geographic data models provide an organizational scheme to associate domain specific meaning to primitive GIS elements like points, polylines, and polygons. Although use of data models is widespread in the GIS community, the design process is not necessarily obvious and often ad hoc. This article outlines a procedure for the creation and validation of geographic data models through the examination and distillation of use cases. As an example, the article follows the development of a data model for the spatial concept of flow. Flow, the collective movements of people, materials, or ideas, is a common driver of geographic change, not generally supported by functionality within contemporary GIS, and an abstract dynamic entity that would presumably be difficult to model. Model design was facilitated through the distillation of flow cases of tabular human migration data, Minard's map of Napoleon's march on Moscow, and stream channel routes in a karst watershed. Unified Modeling Language diagrams are created for each case and the models' commonalities combined to yield a generic data model. As a means of validation, each use case was instantiated with the generic model and tested to re-create the fundamental components of flow and address predefined typical queries. Copyright Blackwell Publishing Numéro de notice : A2010-003 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2009.01180.x Date de publication en ligne : 17/01/2010 En ligne : https://doi.org/10.1111/j.1467-9671.2009.01180.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30199 [article]