When building Hypermedia/Web Applications, (different) designers are often faced with the same problems over and over again. Those recurring problems soon yield elegant solutions, which can be conveniently described as design patterns. In this paper we present two patterns for…

OEPI is the department of the University of Costa Rica in charge of planning, design and construction management of the projects that this Institution requires for supporting the development of all of the different fields that make part of this…

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Se plantea la utilidad que representa para el alumno el aprendizaje significativo de la lengua escrita para acceder a la información como base para la construcción del conocimiento. Así, la atención pedagógica se centra en aspectos que debe poner en…

This paper descries D-SCRIPT, a language for representing knowledge in artificial intelligence programs. D-SCRIPT contains a powerful formalism for descriptions, which permits the representation of statements that are problematical for other systems. Particular attention is paid to problems of opaque…

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This dissertation presents a model of the knowledge a person has about the spatial structure of a large-scale environment: the "cognitive map". The functions of the cognitive map are to assimilate new information about the environment, to represent the current…

This paper deals with the "Calculus of Knowledge", an extension of the propositional calculus in which one may reason about what other people know. Semantic and Syntactic systems are developed, certain theorems are proven, and a formal solution in the…