Dans ce travail nous évaluons la pertinence et la portée d'un ensemble de formalismes informatiques récents sur l'étude du patrimoine architectural, champ d'application dont nous montrons les spécificités et leurs implications. Le problème que pose ce travail peut être présenté ainsi : le raisonnement par classifications que le formalisme objet autorise est-il pertinent pour décrire un modèle de l'édifice patrimonial; les concepts classifiés peuvent-ils être le maillon fédérateur d'une chaîne d'applications relevant de points de vues bien distinct sur l'édifice patrimonial ? Nous définissons une méthodologie d'analyse de l'édifice qui se veut générique, et un ensemble d'outils d'évaluation et d'exploitation du modèle. <br />Nous montrons qu'une analyse a priori du corpus d'éléments physiques formant l'édifice peut grandement en faciliter l'étude. Mesure, représentations et documentation, trois exemples d'applications abordés, deviennent dans ce cadre des processus visant à renseigner le modèle et ses instances. Nous montrons que la compréhension globale de l'édifice bâti et de son évolution est mieux assurée.

<p>In printed text, sound is a somewhat forgotten aspect. The recitation of text is vital in areas like poetry and oratory, but still has no distinct technique of being communicated. Emphasis of a word might be expressed through italics, but no canonic character set or system for vocal delivery of texts exists. With this essay we are creating a foundation for a development of such a character set or system. By studying existing visualisations of sound and comparing these with semiotic and perception-based theories we obtain useful insights for a prospective system for visualisations of vocal sounds.</p><p>We conclude that the aspects of sound one wants to visualise must be carefully defined since the viewer cannot process infinite amounts of information. A sound visualisation system does not have to consist of multiple characters or signs to be effective, but had better be built around a strong code to manage the signs into a working system. Creating a context for the signs is also recommended in order to be able to compare signs with eachother.</p>

Spectral computed tomography (CT) is a novel medical imaging technique that involves simultaneously counting photons at several energy levels of the x-ray spectrum to obtain a single multi-variate dataset. Visualisation of such data poses significant challenges due its extremely large size and the need for interactive performance for scientific and medical end-users. This thesis explores the properties of spectral CT datasets and presents two algorithms for GPU-accelerated real-time rendering from compressed spectral CT data formats. In addition, we describe an optimised implementation of a volume raycasting algorithm on modern GPU hardware, tailored to the visualisation of spectral CT data.

Developing and maintaining software is a difficult task, and finding effective methods of understanding software is more necessary now than ever with the last few decades seeing a dramatic climb in the scale of software. Appropriate visualisations may enable greater understanding of the datasets we deal with in software engineering. As an aid for sense-making, visualisation is widely used in daily life (through graphics such as weather maps and road signs), as well as in other research domains, and is thought to be exceedingly beneficial. Unfortunately, there has not been widespread use of the multitude of techniques which have proposed for the software engineering domain. Tag clouds are a simple, text-based visualisation commonly found on the internet. Typically, implementations of tag clouds have not included rich interactive features which are necessary for data exploration. In this thesis, I introduce design considerations and a task set for enabling interaction in a tag cloud visualisation system. These considerations are based on an analysis of challenges in visualising software engineering data, and the perceptive influences of visual properties available in tag clouds. The design and implementation of interactive system Taggle based on these considerations is also presented, along with its broad-based evaluation. Evaluation approaches were informed by a systematic mapping study of previous tag cloud evaluation, providing an overview of existing research in the domain. The design of Taggle was improved following a heuristic evaluation by domain experts. Subsequent evaluations were divided into two parts - experiments focused on the tag cloud visualisation technique itself, and a task-based approach focused on the whole interactive system. As evidenced in the series of evaluative studies, the enhanced tag cloud features incorporated into Taggle enabled faster visual search response time, and the system could be used with minimal training to discover relevant information about an unknown software engineering dataset.

Developing and maintaining software is a difficult task, and finding effective methods of understanding software is more necessary now than ever with the last few decades seeing a dramatic climb in the scale of software. Appropriate visualisations may enable greater understanding of the datasets we deal with in software engineering. As an aid for sense-making, visualisation is widely used in daily life (through graphics such as weather maps and road signs), as well as in other research domains, and is thought to be exceedingly beneficial. Unfortunately, there has not been widespread use of the multitude of techniques which have proposed for the software engineering domain. Tag clouds are a simple, text-based visualisation commonly found on the internet. Typically, implementations of tag clouds have not included rich interactive features which are necessary for data exploration. In this thesis, I introduce design considerations and a task set for enabling interaction in a tag cloud visualisation system. These considerations are based on an analysis of challenges in visualising software engineering data, and the perceptive influences of visual properties available in tag clouds. The design and implementation of interactive system Taggle based on these considerations is also presented, along with its broad-based evaluation. Evaluation approaches were informed by a systematic mapping study of previous tag cloud evaluation, providing an overview of existing research in the domain. The design of Taggle was improved following a heuristic evaluation by domain experts. Subsequent evaluations were divided into two parts - experiments focused on the tag cloud visualisation technique itself, and a task-based approach focused on the whole interactive system. As evidenced in the series of evaluative studies, the enhanced tag cloud features incorporated into Taggle enabled faster visual search response time, and the system could be used with minimal training to discover relevant information about an unknown software engineering dataset.

Mapping a process enables a greater understanding of the work, and is standard to evaluate and improve a process. This thesis is conducted at Test Bed Mechanical Design at Scania in Södertälje. Test Bed Construction is a complex process, characterized by a large amount of creative work, technical challenges and coordination between different people and different organizational functions. The aim of the thesis was to identify the Test Bed Construction Process and to develop a visual model of the workflow that also served as support for the engineers in their daily work. During the mapping process, comparisons were made with previous research in lean product development to identify process improvement. A literature review on process mapping and process visualisation resulted in a method for process mapping. The study showed that research on process visualisation is neither structured nor well defined. Nevertheless, there are attempts to create a framework to facilitate the selection of modelling technology. The framework used in this thesis categorizes modelling techniques according to the purpose of the model and the models change tolerance. The literature review also led to the identification of a number of success factors for lean product development. A qualitative case study on UTTD mapped the Test Bed Construction Process as well as the engineer's experiences of their work process. The study resulted in a flow chart of the Test Bed Construction Process and a number of areas where the process could be improved. The process improvements essentially related procedures for documentation and coordination.

This research claims that transformative as opposed to informative learning cultures in higher education are capable of promoting student identity development alongside subject development. It makes a significant pedagogical, conceptual, methodological and contextual contribution to contemporary discussions regarding the nature and purpose of higher education in the 21st century. Transformative learning cultures, based on the pedagogical values of the teachers involved, create an identity workspace where student development is encouraged. This workspace reflects the active demonstration of empathy on the part of the teachers and is represented by an integrated pedagogical pattern consisting of four elements; the development of trust, (ii) the creation of collaborative and supportive communities where students have the opportunities to play different roles, (iii) active confrontation and challenge and (iv) the effective use of pedagogical time and space. A naturalistic, ethnographic methodology and case study approach was used to answer the question ‘what is going on here?’ with teachers of Foundation Degrees in two colleges across several subject disciplines in order to explore the nature and purpose of the learning cultures created. A conceptual framework was developed through the active integration of empirical research and scholarship resulting in a socio- cultural approach to understanding the learning contexts. This was supported by the collection of rich and varied data including photographs, observations and interviews with both teachers and students. Visualisation also supported the interpretation and representation of data in an accessible format. An activity theory approach was adopted to support an integrated analysis of the data, enabling the isolation and identification of the influence of teacher intentions, student dispositions, roles and relationships and how development was influenced by time, space and context.

The European Commission states that climate change will increase over time, even with successful actions to stop greenhouse gas emissions, Sweden's work has been investigated in the Climate and vulnerability report and recent studies shows that Sweden's work with the issue is going slow. One way to present and communicate climate change is through visualization. The purposes of this paper is to examine the use of geographic data in 3D as a tool in the adaptation process and how it affects communication and understanding in the municipalities (the responsibility for climate adaptation lies at the municipal level) and between municipalities and agencies. The thesis is a qualitative case study, carried out through interviews with Botkyrka Municipality, Gothenburg City, County Administrative Board of Stockholm, Swedish Geotechnical Institute and The Interactive Institute. The views - about the use of 3D and climate adaptation with a focus on municipal operations expressed in the interviews - was analysed using content analysis. Thoughts emerged during the study about whether 3D is a generation issue with increased public demand in the future. The study also raised concerns about 3D representation being too realistic and that the interpretation needed to understand what the data means will be absent. Pictures of any kind is believed to facilitate understanding but the choice of 2D or 3D maps does not have a large impact on the speed of climate adaptation among Sweden's municipalities. Municipalities who worked with 3D can see that 3D has an effect on the their process and data is used more than before, which can be an advantage and provide better understanding of risk. Dialogue with the public is also believed to improve with the tools that come with 3D models and 3D could preferred if it would provide a faster point of contact between the municipality and the public. / Europeiska kommissionen fastslår att även med lyckade åtgärder för att stoppa utsläppen av växthusgaser kommer klimatförändringarna att öka under lång tid. Sveriges arbete har utretts i en klimat- och sårbarhetsutredning, men arbetet med åtgärderna går långsamt. En del av ansvaret för klimatanpassningen ligger på kommunalnivå i och med kommunernas planmonopol och självstyre. Ett sätt att presentera och kommunicera klimatförändringarna är via bilder. Denna uppsats undersöker om eller hur 3D påverkar kommunikation och förståelse för klimatanpassning på kommunalnivå. Och hur 3Dmodeller kan fungera som ett stöd och underlag för klimatanpassning. Uppsatsen är en kvalitativ fallstudie som genomförts genom intervjuer med Botkyrka kommun, Göteborgs stad, Länsstyrelsen i Stockholm, Statens Geotekniska Institut och The Interactive Institute. Informanterna har fått ge sin bild av användningen av 3D och klimatanpassning med fokus på kommunalverksamhet. Det materialet analyserades sedan i en innehållsanalys. Det framkom funderingar på om 3D är en generationsfråga där allmänheten i framtiden kommer kräva visualisering i 3D för att kunna förstå vad det är som visas. Det lyftes också farhågor om att 3D kan bli för verkligt och att den tolkning som behövs för att förstå vad datat betyder uteblir. Det är inte om kartorna är 2D eller 3D som gör att klimatanpassningen går långsamt bland Sveriges kommuner, men bilder av något slag tros underlätta förståelse. Kommunerna som jobbat med 3D ser ändrade arbetssätt där datat följer med i processen tydligare än tidigare vilket kan vara en fördel och ge bättre riskförståelse. Dialog med allmänheten tros också förbättras genom verktygen som kommer med 3D-modellerna om 3D dessutom kan ge en snabbare kontaktväg mellan kommun och allmänhet kan det vara en fördel.

Mémoire numérisé par la Direction des bibliothèques de l'Université de Montréal.

Gentrification, a process conceived to result in displacement of lower-income urban residents, is difficult to measure quantitatively due to its qualitative, social impacts. Additionally, the phenomenon is a wicked problem, with no decisive definition or a set list of causes. Whereas researchers have instigated attempts to numerically measure gentrification, there is a lack of a systematic and universal approach to evaluate the concept. To investigate this issue, an iterative process took place using gentrification theory and explorative work. A test index was created using the inner boroughs of the UK’s capital, London, aiming to use data which should be available within all cities. Indicators for the index based on the two main theories of gentrification were attained for three different time periods from governmental and census records, creating a longitudinal study to establish how an area has changed, and whether gentrification has occurred. The technique presents evidence of increasing socio-economic status within many of London’s inner  boroughs, with evidence of rising employment rates, house prices and managerial role residents. The highest scoring boroughs were areas considered to be undergoing super-gentrification. From the index, the next borough to super-gentrify will be Hammersmith &amp; Fulham. For first time gentrifying boroughs, their index changes sit within the middle of the borough rankings. It is believed that further analysis and advancements are required on the index to ensure prevention of data misuse, conclusive results, and further consideration of cultural, political or social changes, however new contributions have been made within this topic from considering gentrification from a wicked problem viewpoint.