Decoupling Design Concerns in Location-Aware Services

• Autores: Fortier, Andrés; Rossi, Gustavo Héctor; Gordillo, Silvia Ethel
• Año de publicación: 2005
• Idioma: inglés
• Tipo de recurso: documento de conferencia
• Materia: Informática; Location-aware services; location sensing; concern decoupling; modularity
• Institución: Universidad Nacional de La Plata

In this paper we present an original approach to design and implement applications that provide location-aware services. Our approach emphasizes a clear separation of the relevant concerns in the application (base behavior, context-sensitive properties, services, etc.) to improve modularity and thus simplify evo-lurion. We first motivate the problem with a simple scenario of a virtual campus; we next discuss which are the most important concerns in the application, we explain why we must separate them and show a simple approach to achieve this separation. We analyze the most important (sub) models in which we decompose a location-aware application and explain the use of dependency mechanisms to trigger behaviors related with the provision of services according to the user position. We briefly describe a proof of concept by means of an archetypical implementation we developed following our ideas. We next compare our work with others and discuss some further work we are pursuing.
Book series: IFIP Advances in Information and Communication Technology (IFIPAICT, vol. 191)
Laboratorio de Investigación y Formación en Informática Avanzada