From cognitive landscapes to digital hyperscapes

The widespread diffusion of e-Learning in organizations has encouraged the discovery of more effective ways for conveying digital information to learners, for instance, via the commonly called Learning Management Systems (LMS). A problem that we have identified is that cognitive variables and pedagogical processes are rarely taken into consideration and sometimes are confused with the mere use by learners of “diversified” hypermedia resources. Within the context of widespread dissemination of multimedia content that has followed the emergence of massive information resources, we discuss the need for more powerful and effective learner-centered tools capable of handling all kinds of design configurations and learning objects.(undefined

Facilitating algorithm visualization creation and adoption in education

The research question of this thesis is: How can we develop algorithm animations (AA) and AA systems further to better facilitate the creation and adoption of AA in education? The motivation for tackling this issue is that algorithm animation has not been widely used in teaching computer science. One of the main reasons for not taking full advantage of AA in teaching is the lack of time on behalf of the instructors. Furthermore, there is a shortage of ready-made, good quality algorithm visualizations. The main contributions are as follows: Effortless Creation of Algorithm Animation. We define a Taxonomy of Effortless Creation of Algorithm Animations. In addition, we introduce a new approach for teachers to create animations by allowing effortless on-the-fly creation of algorithm animations by applying visual algorithm simulation through a simple user interface. Proposed Standard for Algorithm Animation language. We define a Taxonomy of Algorithm Animation Languages to help comparing the different AA languages. The taxonomy and work by an international working group is used to define a new algorithm animation language, eXtensible Algorithm Animation Language, XAAL. Applications of XAAL in education. We provide two different processing approaches for using and producing XAAL animations with existing algorithm animation systems. In addition, we have a framework aiding in this integration as well as prototype implementations of the processes. Furthermore, we provide a novel solution to the problem of seamlessly integrating algorithm animations with hypertext. In our approach, the algorithm animation viewer is implemented purely with JavaScript and HTML. Finally, we introduce a processing model to easily produce lecture slides for a common presentation tool of XAAL animations

Proceedings of the Second Program Visualization Workshop, 2002

The Program Visualization Workshops aim to bring together researchers who design and construct program visualizations and, above all, educators who use and evaluate visualizations in their teaching. The first workshop took place in July 2000 at Porvoo, Finland. The second workshop was held in cooperation with ACM SIGCSE and took place at HornstrupCentret, Denmark in June 2002, immediately following the ITiCSE 2002 Conference in Aarhus, Denmark

Gade4all: Developing Multi-platform Videogames based on Domain Specific Languages and Model Driven Engineering

The development of applications for mobile devices is a constantly growing market which and more and more enterprises support the development of applications for this kind of devices. In that sense, videogames for mobile devices have become very popular worldwide and are now part of highly profitable and competitive industry. Due to the diversity of platforms and mobile devices and the complexity of this kind of applications, the development time and the number of errors within that development process have increased. The productivity of the developers has also decreased due to the necessity of using many programming languages in the development process. One of the most popular strategies is to employ specialized people to perform the development tasks more efficiently, but this involves an increase of the costs, which makes some applications economically unviable. In this article we present the Gade4all Project, consisting in a new platform that aims to facilitate the development of videogames and entertainment software through the use of Domain Specific Languages and Model Driven Engineering. This tool makes possible for users without previous knowledge in the field of software development to create 2D videogames for multiplatform mobile devices in a simple and innovative way

Telling the Unique Story of a Local Nonprofit

Creating an intimate connection with local residents is a challenge for Habitat for Humanity MetroWest/Greater Worcester (Habitat). To address this, Habitat partnered with the Worcester Community Project Center to tell the story of the local affiliate and bridge the knowledge gap among local residents. Our goal was to explore the knowledge gap, produce videos that tell the story of Habitat, and propose a no cost media plan. We surveyed local residents, analyzed over 50 nonprofit videos, and consulted with Habitat staff. We found most misconceptions about the local Habitat involved its’ mission and inner workings. Consequently, we developed three videos highlighting different aspects of the local Habitat affiliate and a plan for their distribution

Visual Anxiolytics: developing theory and design guidelines for abstract affective visualizations aimed at alleviating episodes of anxiety

Visual Anxiolytics is a novel term proposed to describe affective visualizations of which affective quality is predetermined and designed to alleviate anxiety and anxious pathology. This thesis presents ground theory and visual guidelines to inform the design of screen-based interfaces to give users aspects of a restorative and anxiolytic environment at a time when attention restoration is least likely and anxiety highly probable; during sedentary screen-time. Visual Anxiolytics are introduced as an affective layer of the interface capable of communicating affect through aesthetic, abstract, ambient emotion visualizations existing in the periphery of the screen and users’ vision. Their theory is brought into the field of Visual Communication Design from a number of disciplines; primarily Affective Computing, Human-Computer Interaction, Psychology, and Neuroscience. Visual Anxiolytics attempt to alleviate anxiety through restoration of attentional cognitive resources by rendering the digital environment restorative and by elicitation of positive emotions through affect communication. Design guidelines analyse and describe properties of anxiolytic affective visual attributes color, shape, motion, and visual depth, as well as compositional characteristics of Visual Anxiolytics. Potential implications for future research in emotion visualization and affect communication are discussed

EDDE : a framework to explore, design, develop and evaluate technology-enhanced instruction for construction

textTechnology-enhanced instruction has a great potential to support the learning process. However, the engaging power of technology can become a distracting factor if it is not deployed properly. Unfortunately, the current literature in instructional design and user interface design is broad and not easily accessible by construction faculty. This dissertation presents a framework to guide the development of technology-assisted instruction for the classroom. The framework developed is called EDDE which stands for four conceptual steps involved in the creation of a technology-supported teaching tool: Explore, Design, Develop, and Evaluate. EDDE contains a novel synthesis of the literature in instructional design and user interface design as well as survey data of student subject matter knowledge and information technology background. A computerized tool called EDDEaid makes accessible the large store of knowledge supporting EDDE. Assessment of EDDEaid is presented with evaluation results from nine university faculty that teach construction subjects as well as through critique of and changes to an existing interactive learning tool. EDDE and EDDEaid are found to contribute to the body of knowledge regarding the deployment of technology-enhanced instruction and provide support to construction faculty developing learning tools.Civil, Architectural, and Environmental Engineerin

Virtual library:a technical implementation for a virtual reality library interface

Abstract. Libraries, as traditional information storages, serve an important role in providing free access to civilization’s knowledge to the public. In the advent of the information society, conventional means of knowledge seeking slowly become obsolete. As technologies advance, libraries shall discover how available inventions could be utilized in enhancing library services and raising public awareness. The offer to discover Virtual Library project was given to the author by the Center for Ubiquitous Computing in the University of Oulu, with the idea originating from Oulu City Library. The goal of the project was to implement an interactive application that would provide a unique experience for library users and show off capabilities of modern virtual technologies. The requirements for it were elicited and refined in a series of participatory design workshops held in Oulu City Library, and as a result, the content of initial web prototype was utilized in the creation of standalone virtual reality application on Unreal Engine 4. The application works with Oculus Rift headset and Oculus Touch motion controllers and lets the user explore the virtual model of Oulu City Library premises as well as some fictional places, added for diverse experience, and experience several activities. Virtual Library was evaluated in a series of testing sessions held in the Oulu City Library with a total of 12 participants, which were primarily the library’s staff members. Overall, the application was positively acclaimed, providing an interesting and unusual library experience, and presenting capabilities of modern virtual reality technologies.Virtuaalikirjasto : tekninen kuvaus virtuaalitodellisuutta hyödyntävälle kirjastopalvelulle. Tiivistelmä. Kirjastoilla on perinteisesti tärkeä rooli tiedon välittäjinä ja tallentajina. Kirjastojen tulee myös mahdollistaa pääsy tiedon ääreen. Siirryttäessä lähemmäksi tietoyhteiskuntaa, perinteiset tavat käsitellä ja havainnoida tietoa ovat jäämässä historiaan. Myös kirjastot kehittyvät ja oppivat kuinka uusia teknologioita on mahdollista hyödyntää tiedon välittämisessä yhteisöille. Virtuaalikirjasto-projekti lähti Oulun kaupungin kirjaston pyynnöstä Oulun yliopiston Jokapaikan tietotekniikan tutkimusryhmälle. Projektin päämääränä oli toteuttaa interaktiivinen sovellus, joka tarjoaisi kirjaston asiakkaille elämyksellistä sisältöä samalla havainnollistaen virtuaalitodellisuuden ja siihen liittyvien teknologioiden mahdollisuuksia. Sovelluksen toteutusta hiottiin Oulun kaupunginkirjastossa sarjalla osallistavan suunnittelun mukaisia työpajoja. Virtuaalitodellisuussovellus toteutettiin Unreal Engine 4 -pelimoottorilla. Se toimii Oculus Rift -virtuaalilaseilla ja Oculus Touch -ohjaimilla. Sovelluksessa on mahdollista kulkea vapaasti virtuaalisessa Oulun kaupunginkirjastossa, sekä tilaan liitetyissä mielikuvituksellisemmissa maailmoissa. Virtuaalikirjasto-sovellus evaluoitiin Oulun kaupunginkirjastossa sarjalla käyttäjätestejä. Testikäyttäjiä oli kaikkiaan 12 ja he olivat pääosin kirjaston työntekijöitä. Sovelluksen vastaanotto oli positiivinen. Käyttäjät totesivat sen havainnollistavan käytettävissä olevan tekniikan mahdollisuuksia samalla tarjoten mielenkiintoisen ja epätavallisen kirjastokokemuksen

Animating the evolution of software

The use and development of open source software has increased significantly in the last decade. The high frequency of changes and releases across a distributed environment requires good project management tools in order to control the process adequately. However, even with these tools in place, the nature of the development and the fact that developers will often work on many other projects simultaneously, means that the developers are unlikely to have a clear picture of the current state of the project at any time. Furthermore, the poor documentation associated with many projects has a detrimental effect when encouraging new developers to contribute to the software. A typical version control repository contains a mine of information that is not always obvious and not easy to comprehend in its raw form. However, presenting this historical data in a suitable format by using software visualisation techniques allows the evolution of the software over a number of releases to be shown. This allows the changes that have been made to the software to be identified clearly, thus ensuring that the effect of those changes will also be emphasised. This then enables both managers and developers to gain a more detailed view of the current state of the project. The visualisation of evolving software introduces a number of new issues. This thesis investigates some of these issues in detail, and recommends a number of solutions in order to alleviate the problems that may otherwise arise. The solutions are then demonstrated in the definition of two new visualisations. These use historical data contained within version control repositories to show the evolution of the software at a number of levels of granularity. Additionally, animation is used as an integral part of both visualisations - not only to show the evolution by representing the progression of time, but also to highlight the changes that have occurred. Previously, the use of animation within software visualisation has been primarily restricted to small-scale, hand generated visualisations. However, this thesis shows the viability of using animation within software visualisation with automated visualisations on a large scale. In addition, evaluation of the visualisations has shown that they are suitable for showing the changes that have occurred in the software over a period of time, and subsequently how the software has evolved. These visualisations are therefore suitable for use by developers and managers involved with open source software. In addition, they also provide a basis for future research in evolutionary visualisations, software evolution and open source development