Web-GIS models: accomplishing modularity with aspects
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ArticleDescription: 1 archivo (2,4 MB)Subject(s): Online resources: Summary: Spatial concerns of Web geographical informa- tion systems (Web-GIS) are inherently crosscutting and volatile: crosscutting because they affect multiple function- alities of Web-GIS systems, and volatile because their status may change often. If these concerns are not modularized properly, the quality of Web-GIS services, particularly with regard to adaptation and evolution, can be severely compro- mised. This paper uses aspect-orientation to model crosscut- ting and volatile spatial concerns. By modeling both types of concerns, crosscutting and volatile, as candidate aspects, one can use dynamic weaving to add or remove them from a system at runtime. The aspect-oriented approach proposed starts with the identification and specification of crosscutting concerns and follows by composing these using modeling aspects using a transformation approach, an aspect-oriented modeling technique. The conflicts that can emerge due to the composition order are also taken into consideration. Finally, this paper proposes a set of reusable GIS crosscutting con- cerns, documenting them in a concern catalogue.
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Biblioteca de la Facultad de Informática | Biblioteca digital | A0371 (Browse shelf(Opens below)) | Link to resource | Recurso en Línea |
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Formato de archivo: PDF. -- Este documento es producción intelectual de la Facultad de Informática - UNLP (Colección BIPA/Biblioteca)
Spatial concerns of Web geographical informa- tion systems (Web-GIS) are inherently crosscutting and volatile: crosscutting because they affect multiple function- alities of Web-GIS systems, and volatile because their status may change often. If these concerns are not modularized properly, the quality of Web-GIS services, particularly with regard to adaptation and evolution, can be severely compro- mised. This paper uses aspect-orientation to model crosscut- ting and volatile spatial concerns. By modeling both types of concerns, crosscutting and volatile, as candidate aspects, one can use dynamic weaving to add or remove them from a system at runtime. The aspect-oriented approach proposed starts with the identification and specification of crosscutting concerns and follows by composing these using modeling aspects using a transformation approach, an aspect-oriented modeling technique. The conflicts that can emerge due to the composition order are also taken into consideration. Finally, this paper proposes a set of reusable GIS crosscutting con- cerns, documenting them in a concern catalogue.
Innovations in Systems and Software Engineering,10(1), pp 59-75.