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Maricel és un Centre d'Interpretació i Estació de Recerca ubicat al Prat de Ses Monges, Eivissa, creat per protegir, conservar i recuperar el el valor paisatgístic, ambiental i patrimonial del Prat de Ses Monges.

Este proyecto propone una vivienda de interés social en Colombia, en donde a diferencia de cómo se maneja actualmente, la problemática se aborda desde la habitabilidad y no la rentabilidad. Se analiza la vivienda teniendo en cuenta aspectos espaciales, accesibles, funcionales, técnicos, constructivos y estéticos que permitan dar solución al problema actual desde el punto de vista arquitectónico. Se evidencia la falta de calidad espacial que se logra con el presupuesto actual dictado por el gobierno para la construcción de VIS en el país, y se plantea un presupuesto mínimo que debe tener una vivienda con áreas operables. This project offers low-income housing in Colombia, where, unlike how it is currently managed, the problem is addressed from habitability and not profitability. The house is analyzed considering spatial, accessible, functional, technical, constructive, and aesthetic aspects that allow a solution to the current problem from an architectural point of view. The lack of spatial quality that is achieved with the current budget dictated by the government for the construction of low-income housing in the country is evident; that is why a new minimum budget is proposed for houses with operable areas. Arquitecto http://www.ustabuca.edu.co/ustabmanga/presentacion Pregrado

En el ámbito de las matemáticas y la ingeniería aparecen frecuentemente integrales multidimensionales que son difíciles de resolver. Se puede solventar este problema proporcionando estimadores puntuales e intervalos de confianza para el valor determinado de la integral usando técnicas de muestreo. En este trabajo, estudiaremos el método Monte Carlo básico y algunas variantes, como el muestreo por importancia, que lo hacen más eficiente. Además, ilustramos la técnica con diversas aplicaciones en estadística bayesiana, optimización estocástica y teoría de juegos. Complex multidimensional integral calculus can be found often in the field of mathematics and engineering. This issue can be solved providing point estimates and confidence intervals to the particular value of the integral by using sampling techniques. In the presented academic work, the basic Monte Carlo method, as well as some of its variants that make it more efficient, such as the Importance Sampling, has been investigated. Moreover, the technique has been illustrated with diverse applications to Bayesian statistics, stochastic optimization and game theory.

Ecclesiastical institutions and assistance institutions played an important role in the development of Barcelona's urban layout. It was not until the mid-19th century that these entities, due to their large occupied extensions, began to pose urban constraints in the development of the Catalan district “El Raval”. They were the popular revolts and the process of demortization, among others, the factors that marked the material and functional end of many monasteries and convents of the city. Nowadays, few ecclesiastical institutions survive and many vestiges have been forgotten. This work makes a historical reflection on the cultural significance of the ecclesiastical ensemble of Sant Agustí Nou, analyzing from its beginnings to the present day. In this way, a reflection is born around the identity and integrity of the heritage fragments in the contemporary city. The wing of the cloister of the former convent of Sant Agustí Nou will be the chosen model of study. Understanding that these vestiges are fragments and that belong to the Catàleg del Patrimoni Arquitectònic as Bé Cultural d’Interès Local in catalan (BCIL), the treatment that these ones could come to receive will be in the discussion.

Today, the existence of metadata is one of the most important keys for an effective discovery of geospatial data published in Spatial Data Infrastructures (SDI). However, due to lack of efficient mechanisms, integrated in user daily workflow, to assist users in generating metadata, little metadata is produced. This paper presents a mechanism for generating and publishing metadata with a Publication Service. This mechanism is provided as a web service implemented with a standard-base interface, the Web Processing Service (WPS) specification to improve its interoperability with other SDI components. This paper extends previous research when designing a Publication Service in the framework of the European Directive INSPIRE as a solution to assist users in publishing geospatial data and metadata automatically in order to improve, among others, SDI maintenance and usability.

Ponencias, comunicaciones y pósters presentados en el 17th AGILE Conference on Geographic Information Science "Connecting a Digital Europe through Location and Place", celebrado en la Universitat Jaume I del 3 al 6 de junio de 2014. The work in this paper aims at increasing the interoperability and improving accessibility of data provided by sensor networks. This way, this data can be employed by different devices and with diverse context requirements, such as specific location and time. To address this problem Geographic Information System (GIS) services, such as the Sensor Observation Service (SOS), in conjunction with Representational State Transfer (RESTFul) architecture are used. A standard-based solution that increases interoperability is presented. It also allows for a better integration of data already published in different semi-structured formats in order to be used by various platforms (web or mobile). Furthermore, this system adds value to original sensor data in order to assist in the decision making process.

La información geoespacial necesaria para la gestión de los incendios forestales es muy amplia y diversa. Cada profesional que interviene en un incendio forestal actúa en diferentes fases (prevención, extinción), contexto (centro control, primera línea de fuego, vigilancia). Cada profesional tiene diferentes grados de dependencia tecnológica, por lo que la información geoespacial necesaria para cada perfil es distinta y valorada por su utilidad. El estudio cuantitativo presentado en este artículo está basado en las técnicas de encuestas. La finalidad del estudio es la evaluación del estado actual en el uso y conocimiento de las tecnologías geoespaciales durante la prevención y extinción de incendios forestales. En este artículo se describe la metodología seguida para la confección de la encuesta, la definición de los criterios de evaluación y el análisis de los resultados obtenidos. Los resultados reflejan una tendencia positiva en cuanto que las infraestructuras de datos espaciales (IDE) y otras tecnologías geoespaciales son conocidas e incluso utilizadas por los encuestados, aunque con diferente grado de penetración por perfil profesional y sujeto últimamente al conocimiento y experiencia de cada individuo. The geospatial information needed to manage forest fires is very extensive and diverse. Professional who intervene in a forest fire act in different phases (prevention, extinction), context (center control, where the fire began, surveillance); each professional requires a different level of technical dependence, therefore the geospatial information needed for each profile is distinct and thus valued based on its purpose. The quantitative study presented in this article, is based on survey techniques. The purpose of this study is to evaluate the use and knowledge of geospatial technologies during the prevention and extinction of forest fires. In this article the methodologies employed to create this survey are described, the definition of the evaluation criteria and the analysis of the results obtained. The results reflect a positive tendency regarding spatial data infrastructures (SDI); other geospatial technologies are known and even used by the respondents, although with a different level per profile and subject, as well as based on the knowledge and experience of each individual.

Ponència presentada en AGILE’2012 International Conference on Geographic Information Science, "Multidisciplinary Research on Geographical Information in Europe and Beyond" celebrat a Avignon, els dies 24-27 d'abril de 2012 Today, the existence of metadata is one of the most important factors for the effective discovery of geospatial data published in Spatial Data Infrastructures (SDI). However, due to the lack of efficient tools, integrated in the user?s daily workflow to assist users in generating metadata, little metadata is produced. This paper presents a mechanism for generating and publishing metadata with a Publication Service. This method is provided as a web service implemented with a standard-base interface, the Web Processing Service (WPS) specification to improve its interoperability with other SDI components. This paper extends previous research regarding the design of a Publication Service within the framework of the European Directive INSPIRE as a solution to assist users in publishing geospatial data and metadata automatically in order to improve, among others, SDI maintenance and usability.

Ponència presentada a les III Jornadas Ibéricas de Infraestructura de Datos Espaciales (JIIDE 2012), celebrat a Madrid els dies 17, 18 i 19 d'octubre de 2012 Con el objetivo de mejorar la monitorización y gestión de los recursos del Campus este proyecto integra la información disponible en un sistema de información que permite el acceso y la gestión de conjuntos de datos y servicios geográficos según el modelo definido para una IDE local. Esto nos permite relacionarnos con la información de nuestro entorno a diferentes escalas y en diferentes disciplinas y nos proporciona herramientas para realizar el análisis de los diferentes sistemas que componen la ciudad inteligente (energía, medio ambiente, movilidad, participación). Para ello se modelan espacios exteri ores e interiores, integrando datos de diferentes fuentes y formatos, y se geo rreferencian y representan de acuerdo con la plantilla CampusBaseMap de ES RI (Enviromental Systems Research Institute). Se contribuye así a su capa topográfica y se dispone de una base cartográfica completa y precisa en información y acorde con el entorno en su representación. La información asociada a cada espacio se integra en el LGIM (Local Government Information Model), lo que nos permite aprovechar las definiciones y relaciones entre los diferentes elementos que componen recintos como campus universitarios, parques de atracciones, polígonos industriales o ciudades. De entre las aplicaciones previstas, actualmente está implementado un cliente de visualización, un servicio de localización basado en un nomenclátor y un servicio de peticio nes, basados en plantillas de ESRI. Además, otras aplicaciones, como la monitorización de consumos energéticos, están en marcha.

Ponència presentada en AGILE’2012 International Conference on Geographic Information Science, "Multidisciplinary Research on Geographical Information in Europe and Beyond" celebrat a Avignon, els dies 24-27 d'abril de 2012 Public health research brings substantial benefit to society. Finding data in an efficient way is necessary to carry out relevant space time analysis to address particular studies such as mortality rates and their causes for instance due to environmental exposu re. However, health -related information systems remain isolated from other systems such as those managing geospatial and environmental information making it difficult and time -consuming to study relations and patterns in multidisciplinary scenarios. In this paper we employ Linked Open Data technologies to publish health and related data. We report results of the approach with a case study to expose mortality atlas data of the Valencia Community in Spain. The results show how to overcome the lack of semantic relations betw een resources and published data , and how to reduce disparity and redundancy.

The adoption of geoprocessing service clients in mobile devices seems to be still rare, even when the communication protocol provided by the Web Processing Service (WPS) seems to fit the philosophy of accessing computation-intensive processes from resource-constrained devices such as mobile applications. One of the reasons to such a low use of WPS services may be due to input and output data used in a given geospatial process are often encoded in some XML-based format that demands large processing capabilities for mobile devices. In order to deal with this problem we present the WPS Mobile Framework, which carries out the automatic generation of XML data binding code for mobile devices tailored to specific application needs. In addition, we present two WPS-compliant client applications to demonstrate the reliability of the proposed framework for building compact, standards-based geoprocessing mobile clients., JRC.H.6-Digital Earth and Reference Data

When publishing information on the web, one expects it to reach all the people that could be interested in. This is mainly achieved with general purpose indexing and search engines like Google which is the most used today. In the particular case of geographic information (GI) domain, exposing content to mainstream search engines is a complex task that needs specific actions. In many occasions it is convenient to provide a web site with a specially tailored search engine. Such is the case for on-line dictionaries (wikipedia, wordreference), stores (amazon, ebay), and generally all those holding thematic databases. Due to proliferation of these engines, A9.com proposed a standard interface called OpenSearch, used by modern web browsers to manage custom search engines. Geographic information can also benefit from the use of specific search engines. We can distinguish between two main approaches in GI retrieval information efforts: Classical OGC standardization on one hand (CSW, WFS filters), which are very complex for the mainstream user, and on the other hand the neogeographer’s approach, usually in the form of specific APIs lacking a common query interface and standard geographic formats. A draft ‘geo’ extension for OpenSearch has been proposed. It adds geographic filtering for queries and recommends a set of simple standard response geographic formats, such as KML, Atom and GeoRSS. This proposal enables standardization while keeping simplicity, thus covering a wide range of use cases, in both OGC and the neogeography paradigms. In this article we will analyze the OpenSearch geo extension in detail and its use cases, demonstrating its applicability to both the SDI and the geoweb. Open source implementations will be presented as well

This article provides an introduction to European initiatives relating to spatial and environmental data policy contribut- ing to the Global Earth Observation System of Systems (GEOSS). We begin by describing the background to and goals of GEOSS as a system of systems which encompasses and coordinates a multitude of independent systems. Then we go on to describe the main aims, players, and collaborations of individual European initiatives that are making a positive contri- bution to GEOSS

El presente trabajo introduce las iniciativas europeas en materia de política espacial y datos medioambientales que contribuyen al Sistema Global de Sistemas para la Observación de la Tierra (Global Earth Observation System of Systems, GEOSS). En primer lugar se describe el contexto y objetivos de GEOSS como un sistema de sistemas que engloba y coordina multitud de sistemas independientes. En segundo lugar destacamos los principales objetivos, participantes y colaboraciones de las iniciativas concretas en el contexto europeo que aúnan esfuerzos de forma efectiva hacia GEOSS This paper introduces the European initiatives in space policy and environmental data that contribute to the Global Earth Observation System of Systems (GEOSS). In the first place, it describes the context and objectives of GEOSS as a system of systems that includes and coordinates a multitude of separate systems. Secondly, the paper highlights the main objectives, participants and collaborations of the concrete initiatives that effectively join forces towards GEOSS in the European context.

El interés de los usuarios en la información con contexto geográfico hace que esta juegue un papel fundamental en la sociedad haciendo que la cantidad y variedad de recursos georreferenciados disponibles en la web aumente día tras día. Actualmente existen numerosos servicios Web especializados en compartir tipos concretos de recursos como imágenes, video o texto que nos permiten realizar búsquedas en base a una localización. Por otra parte, de manera más formal, en el contexto de los Sistemas de Información Geográfica (SIG) se han realizado grandes esfuerzos en generar grandes catálogos de metadatos. Sin embargo, aún resulta complicado encontrar contenidos georreferenciados relevantes de una forma integrada y sencilla. Tomando como referencia el mundo Web, observamos que ya en su inicio comenzó a ser poblado con recursos de forma masiva, hecho que dificultaba encontrar contenidos relevantes. Tras la solución inicial de los directorios, la revolución llego con los buscadores, empresas como Yahoo! o Google que se dieron cuenta de las deficiencias del sistema y empezaron a recopilar ellos mismos información de cada recurso que encontraban disponible. Estos sistemas se dedican a recorrer sistemáticamente los recursos con el fin de obtener de ellos el máximo de información (metadatos) que su tecnología les permite. En base a estos metadatos se podrán indexar los recursos de una forma exacta y eficiente proporcionando resultados relevantes y exactos a las consultas formuladas por los usuarios. Tal ha sido el éxito de estos sistemas que hoy es inimaginable la búsqueda de información y la navegación por la red sin acceder a alguno de estos servicios. Sin embargo, en el caso de los recursos georreferenciados el descubrimiento sigue dependiendo de que estos hayan sido publicados de forma no automatizada en servicios especializados como catálogos. Algunos usuarios en ciertas situaciones requieren un rápido acceso a información actualizada. Por ejemplo, en el campo de la gestión de emergencias una buena disponibilidad y un rápido acceso a información actualizada son muy importantes dado que las primeras horas de respuesta a un desastre son críticas para salvar vidas y reducir daños. Lo que plantea nuevos retos de investigación en el descubrimiento de contenidos georreferenciados. Partiendo de estos hechos, esta tesis se basa en la premisa de que son necesarios mecanismos más sencillos, flexibles y eficientes que den soporte a la descripción, publicación y descubrimiento de recursos georreferenciados, capaces de ofrecer al usuario una solución integrada que le permita recolectar, catalogar y buscar recursos georreferenciados de una forma natural y homogénea. Por ello, en esta tesis se revisa todo el ciclo de vida de los recursos georreferenciados, se exponen diferentes conceptos teóricos y técnicos relevantes y se proponen diferentes soluciones. Para la descripción de los recursos se propone una metodología para la generación de metadatos que pretende automatizar su producción. Además, se propone un mecanismo común para anotar y georreferenciar recursos independientemente de su naturaleza. Y también se propone un nuevo paradigma cuyo fin es proporcionar descripciones homogéneas on-line. Por otra parte, se propone una metodología para la publicación de los recursos de forma interoperable en servicios de catálogo de forma integrada en el flujo de trabajo e incluyendo posibles anotaciones semánticas. Además, se propone otro método que permite publicar los recursos mediante la indexación de sus descripciones combinando índices textuales y espaciales. Por otra parte, para mejorar el descubrimiento de los recursos se automatiza su recopilación, se propone una interfaz de consulta común y homogénea, y se proponen aplicaciones cliente basadas en un globo virtual permitiendo la visualización e integración de datos heterogéneos. Todas estas contribuciones conceptuales han sido comprobadas y demostradas mediante sus respectivas implementaciones en casos de uso reales. Finalmente, juntando todas las piezas, se presenta una arquitectura y una primera implementación de un sistema automatizado de indexación y búsqueda de recursos georreferenciados. Mediante este sistema se consigue mejorar el descubrimiento y consecuentemente la accesibilidad a los recursos, nuestro objetivo final.

Dissertation submitted in partial fulfillment of the requirements for the Degree of Master of Science in Geospatial Technologies. Air pollution is a critical issue in contemporary times. For this reason, officials and environmental managers are in need of suitable tools for visualization, manipulation and analysis of environmental data. Environmental concerns in Europe have encouraged the European Environmental Agency (EEA) to create the European Pollutant Release and Transfer Register (E-PRTR). The E-PRTR is vital and valuable because society will benefit if the data are used to improve monitoring and consequently advance environmental management. However, the data are not accessible in an interoperable way, which complicates their use and does not allow for a contribution to environmental monitoring. This paper describes a Web GIS system developed for the monitoring of industrial emissions using environmental data released by the EEA. Four research objectives are addressed: (1) design and create an interoperable spatial database to store environmental data, (2) develop a Web GIS to manipulate the spatial database, facilitate air pollution monitoring and enhance risk assessment, (3) implement OGC standards to provide data interoperability and integration into a Web GIS, (4) create a model to simulate distribution of air pollutants and assess a population’s exposure to industrial emissions. The proposed approach towards interoperability is an adoption of servicebased architecture for implementation of a three-tier Web GIS application. This system’s prototype is developed using open source tools for the Valencian Community of Spain.

Dissertation submitted in partial fulfillment of the requirements for the Degree of Master of Science in Geospatial Technologies. The power of Geospatial technologies in first world countries is increasingly being harnessed to manage disasters; this is not the same case for Uganda a disaster prone country in East Africa. For regions in the blankets of Mt. Rwenzori in the west and Mt. Elgon in the east, every year brings with it new challenges in the field of disaster management. When disasters happen in Uganda, government agencies and different Humanitarian Organizations run to the aid of the affected, relief is provided and rehabilitation activities carried out, but there remains little usable GI of the affected areas (Farthing & Ware, 2010). If disaster preparedness and management is dependent on accurate analysis and mapping of vulnerability and susceptibility of communities to risk (Office of the Prime Minister, 2010) and there exists data gaps and challenges (NEMA/UBOS, n.d.) in the country, how then can disaster managers carry out vulnerability assessment of communities? This thesis examines the possibility of providing disaster managers the means to assess the vulnerability of communities to risk by suggesting a solution for data acquisition and developing a web application based on interoperable modular components to act as a platform where this analysis can be performed.

Dissertation submitted in partial fulfillment of the requirements for the Degree of Master of Science in Geospatial Technologies. Spatial relations are considered as one of the most unique aspects of spatial or geographical information and have linked the space and natural language. Many spatial relations represent distance (topological relations) and directional relations. This research discusses the role of topology for the conceptualization of different movement and furthermore to assess the influence of two different scales of spaces on cognitive classes through human subject tests. Two experiments are conducted with two different scales. Each experiment was performed by 20 participants. Experiments were fully based on the grouping paradigm. Grouping task enable to categorize the movement entities into groups and establish the cognitive categories or classes. Entities or movement patterns within a class are assumed to similar to one another but different from the entities in other classes. It is believed that the two scales of space are quite distinct in the ways people see and think about them in their mind (Downs and Stea, 1977). To assess the influence of scale on the cognitive classes, two different scales are assumed i. e bike and city and bike and park. Similarity measure and category construction of different movement patterns are assessed using both scales. All movement patterns were designed through conceptual neighborhood graph. The result of this experiment shows that different movement patterns are distinguished by the topological relations. This study not also presents the importance of the topology for conceptualization and perception of different movement patterns but also the influence of scale to distinguish the different movement pattern and to build cognitive classes. The main finding of this study is that the grouping behavior of Non- tangential proper part is found to be different in both scales. Direction relations are also an important aspect of spatial relations. Human beings use different angular information in their environment and derive information. This study not also assesses the conceptualization of different direction turns but also examine the category construction influenced by the two different scales. This research discusses the category construction of direction turns created in both scales. The results shows that human perceive different angular information and deduce this information. It is also examined that cognitive classes constructed remain same in both scale. Furthermore, linguistic description is also evaluated in this research but not in much detail. Verbal labeling of the groups participant created also gives the idea about the human perception about the two different scales.

Las aplicaciones geoespaciales se han vuelto muy comunes tanto en entornos de escritorio, servidor, web, como en entornos móviles. El crecimiento del número de este tipo de aplicación hace necesario la utilización de formatos y protocolos estándares para intercambiar información geospacial. En este sentido los estándares definidos por el Open Geospatial Consortium (OGC) constituyen un método efectivo para mejorar la interoperabilidad. El gran número de instancias de servicios OGC disponibles en Internet dan fe del éxito alcanzado por estos estándares. A pesar de esto, el número de aplicaciones de este tipo dirigidas a dispositivos móviles es aún muy bajo. Esto se debe en parte a que la complejidad de los protocolos definidos por los estándares, lo que dificulta enormemente el desarrollo de estas aplicaciones. En este trabajo se presenta una solución que permite la generación automática de código de procesamiento de XML personalizado para aplicaciones móviles basadas en estándares de OGC. La solución propuesta se basa en la observación de que las implementaciones reales se suele utilizar solo un subconjunto de sus esquemas y permite la extracción automática de este subconjunto a partir de un grupo de documentos XML que deben ser procesados por una aplicación en particular.

Dissertation submitted in partial fulfillment of the requirements for the Degree of Master of Science in Geospatial Technologies. Geospatial data harmonization is becoming more and more important to increase interoperability of heterogeneous data derived from various sources in spatial data infrastructures. To address this harmonization issue we present the current status of data availability among different communities, languages, and administrative scales from regional to national and European levels. With a use case in forest data models in Europe, interoperability of burned area data derived from Europe and Valencia Community in Spain were tested and analyzed on the syntactic, schematic and semantic level. We suggest approaches for achieving a higher chance of data interoperability to guide forest domain experts in forest fire analysis. For testing syntactic interoperability, a common platform in the context of formats and web services was examined. We found that establishing OGC standard web services in a combination with GIS software applications that support various formats and web services can increase the chance of achieving syntactic interoperability between multiple geospatial data derived from different sources. For testing schematic and semantic interoperability, the ontology-based schema mapping approach was taken to transform a regional data model to a European data model on the conceptual level. The Feature Manipulation Engine enabled various types of data transformation from source to target attributes to achieve schematic interoperability. Ontological modelling in Protégé helped identify a common concept between the source and target data models, especially in cases where matching attributes were not found at the schematic level. Establishment of the domain ontology was explored to reach common ground between application ontologies and achieve a higher level of semantic interoperability.

Dissertation submitted in partial fulfilment of the requirements for the Degree of Master of Science in Geospatial Technologies Usability testing is an essential part of software development, which provides guidelines to the developers according to the users’ needs. In the present usability study, natural language terms that describe topological operators in gvSIG software were tested among native speakers of German and Portuguese. The main goal was find out if users’ understand the operators according to the system designer. Twenty six subjects in each language had to choose the line-regions relations appropriate for each topological operator in gvSIG. Afterwards, the subjects’ answers were compared to the implementation of these topological operators by the gvSIG software. The comparison revealed major difference between the subjects’ answers and the gvSIG implementation. The subjects chose applicable line-region relations out of a set of 19 different topological relations identified by Egenhofer’s 9-intersection model. In average 12% and 6% of the operators were understood in the same way as gvSIG implementation by the subjects of German and Portuguese respectively. For German native speakers, the highest results of an operator understood by the subjects as the system designer were 50% and a subject understanding 33% of the operators. The lowest results of an operator understood by the subjects as the system designer were 0% and a subject understanding 0% of the operators. For Portuguese native speakers, the highest results of an operator understood by the subjects as the system designer were 27% and a subject understanding 33% of the operators. The lowest results of operator understood by subjects as system designer were 0% and a subject understanding 0% of the operators.

Dissertation submitted in partial fulfilment of the requirements for the Degree of Master of Science in Geospatial Technologies As a newly proliferating study area, knowledge discovery from trajectories has attracted more and more researchers from different background. However, there is, until now, no theoretical framework for researchers gaining a systematic view of the researches going on. The complexity of spatial and temporal information along with their combination is producing numerous spatio-temporal patterns. In addition, it is very probable that a pattern may have different definition and mining methodology for researchers from different background, such as Geographic Information Science, Data Mining, Database, and Computational Geometry. How to systematically define these patterns, so that the whole community can make better use of previous research? This paper is trying to tackle with this challenge by three steps. First, the input trajectory data is classified; second, taxonomy of spatio-temporal patterns is developed from data mining point of view; lastly, the spatio-temporal patterns appeared on the previous publications are discussed and put into the theoretical framework. In this way, researchers can easily find needed methodology to mining specific pattern in this framework; also the algorithms needing to be developed can be identified for further research. Under the guidance of this framework, an application to a real data set from Starkey Project is performed. Two questions are answers by applying data mining algorithms. First is where the elks would like to stay in the whole range, and the second is whether there are corridors among these regions of interest.

Dissertation submitted in partial fulfillment of the requirements for the Degree of Master of Science in Geospatial Technologies. The popularity of sensor networks has increased very fast recently. A major problem with these networks is achieving interoperability between different networks which are potentially built using different platforms. OGC’s specifications allow clients to access geospatial data without knowing the details about how this data is gathered or stored. Currently OGC is working on an initiative called Sensor Web Enablement (SWE), for specifying interoperability interfaces and metadata encodings that enable real‐time integration of heterogeneous sensor webs into the information infrastructure. In this work we present the implementation of gvSOS, a new module for the GIS gvSIG to connect to Sensor Observation Services (SOS). The SOS client module allows gvSIG users to interact with SOS servers, displaying the information gathered by sensors in a layer composed by features. We present the detailed software engineering development process followed to build the module. For each step of the process we specify the main obstacles found during the development such as, restrictions of the gvSIG architecture, inaccuracies in the OGC’s specifications, and a set of common problems found in current SOS servers implementations available on the Internet.