If there is still any doubt in your mind that interaction design could help you to more efficiently sell a product on the Internet this paper will convince you otherwise. In the month following the public release of the interface changes suggested in this paper in August 2008 the Internet based sports games company PowerChallenge saw an increase in sales of more than 60% (see results). Using heuristic evaluation and simple user testing the complexity of accessing PowerChallenge's products has been drastically reduced and this has resulted in fewer customers losing their way in the process. Along with slimlining the process of acquiring products the entire web portal has had a graphics remake to make a trustworthy first impression on users. The increased fear of phishing1 and general uncertainty about the safety of online shopping[6] makes many users abandon their intentions of spending money whenever the site drastically changes it's looks in the middle of the payment flow. This has been partially remedied but may require more work. An iterative design process has been applied throughout this project.

Diverging from traditional agenda tools, comes Activity Ace which explores the closest vicinity of the hosting mobile device and responds the activity the user wants to be reminded of. In this thesis we investigate in and mobility means and moreover what evaluation methods exists Ace is used by typing down the activity you want to be reminded of and attaching to it a situational description built of metadata and Boolean conditions. The application will trigger the reminder i.e. the activity to be reminded of when the situational description matches with the device's closest vicinity. Amongst many, we found that core features of a contextaware applications consists of what contextawarenessfor these kinds of applications. Activitypresentation, automatic execution of a service  and misconceptions used in mobility rhetoric such as Furthermore we have learned that usability evaluation methods, therein cooperative evaluation methods provide qualitative information on the design and functionality thus prove to be suitable in evaluation of these kind of applications. By reflecting on these issues, we can better understand the role of contextawareness and mobility in an agenda tool such as Activity Ace. tagging of context to information for later retrieval. We have also clarified commonaccess, any time, anywhere.

Today’s mobile phones are capable of both fast data processing and communication via a number of interfaces such as 3G, Wi-Fi, and Bluetooth. As the number of mobile phones increases, the distance between adjacent mobile phones decreases. However, the mobile phones rarely communicate directly with each other. This thesis explores the possibilities of communication and work-sharing among adjacent mobile phones by the creation of a communication framework and an application. The communication framework enables both direct and group communication among mobile phones and the application uses the communication framework to share work and improve the download time of a web page. Together they form a system that is used to evaluate the performance in mobile distributed systems. The thesis demonstrates that work-sharing among adjacent mobile phones is feasible and that the speedup is significant when the shared work is large enough compared to the overhead introduced by the communication.

Concept maps are a form of graphical knowledge representation [1]. Concept maps are drawn as directed or undirected graphs. Concept maps may carry a large and complex structure where concepts are described as a form of relationships between the nodes and the edges. Concept maps are widely used in teaching and learning where educational research and assessment are necessary functions. The common problem when dealing with concept maps is evaluation. This usually involves comparing concept maps for similarity. When developing a concept map the developer uses different ways and terminologies to describe the same concepts and relationships. Furthermore there is no commonly accepted way of scoring a concept map since not all scoring rules are suitable for all types of concept maps. This thesis proposes a tool that reviews scoring techniques used for assessing the concept maps. A tool was developed to unify the terminology used in describing the concept and relationship in a concept map. The tool maps these terminologies into a common language and further scores it against a map master map. The tool also assesses concept maps based on different approaches of relational and structural scoring techniques as structure based scoring has shown better comprehension than scores based on concepts alone [9]. The tool produces the final score by summing up the scores of all these approaches. The tool is also user supported and is automated by the input prepositions given from the user. The results suggest that the evaluation techniques used by the tool helps in assessing the concept map but the tool does not support all forms of concept maps. The tool shows that it can accommodate various aspects of scoring and has shown capacity to integrate with other tools like the word net and implement algorithms such as path finder. However the tool needs to be further extended to support assessment of hand written concept maps and other scoring schemes.

Animerade filmer görs idag till störst del av stora företag som har en rejäl budget och arbetskraft. Är det möjligt att göra en hel animerad kortfilm ensam med hjälp av endast program som är gratis?. I det här examensarbetet redogörs om det är möjligt att göra en animerad kortfilm helt själv under begränsad tidsram och begränsade förutsättningar. Jämförelser mellan kommersiell programvara och open-source kommer att göras, där programmen jämförs som helhet och i sina individuella funktioner. Det visas även steg för steg hur animationen skapas. Resulterade blev en kort animerad film som håller en relativt hög standard.

Today there are several 3D software’s that are capable of producing realistic simulations, such as fire, water, smoke, cloth etc. This thesis will focus on two software’s, Autodesk Maya and Blender. The first one, Maya, is an industry-leading commercial product, while the second, Blender, is based on open-source. Thus raising interesting questions regarding the overall performance in both software's. Three different sets of simulations will be created in both applications, then a comparison will be made focusing on the work-flow, rendering time and the final render. In order to draw a conclusion of the final result, each simulation will be rendered as a short video sequence and later showed to a number of participants. The participants will then decide which simulation looks more appealing in the terms of both photorealism and behaviour of the simulations. Through that process, it is showed that both applications outweigh each other in different areas. Keywords: Maya, Blender, computer graphics, dynamics, simulation

Datormodellerade karaktärer är vanliga inom spel- och filmbranschen. Vissa karaktärers topologier är modellerade med tris, andra med quads. En karaktärs topologi kan vara avgörande för hur slutresultatet blir. I det här arbetet har en visuell jämförelse gjorts mellan en karaktär med två olika topologier, en modellerad med quads, den andra konverterad till tris. Båda karaktärerna har renderats ur samma scen med identiska förutsättningar. Jämförelsen har gjorts för att hitta visuella likheter och/eller skillnader i utseendet och deformationen på modellen. Testbilderna visar att skillnader uppstod men att det är tycke och smak som avgör ifall en tris- respektive quads-topologi är att föredra.

A major problem on the Internet is automated computer programs abusing services intendedto be used only by humans. Therefore, a method is needed to separate computersfrom humans. Completely Automated Public Turing Test To Tell Computers and HumansApart, or CAPTCHA, is a term used to describe a test that is difficult for computers andeasy for humans to pass and that can be generated and graded automatically. Most of theCAPTCHA schemes currently in use rely on some kind of image or audio recognitionproblem, making them unavailible to the visually and/or audially impaired. Additionally,visual CAPTCHAs can currently be broken with alarmingly high success rates. We proposea CAPTCHA scheme based purely in the text domain which we have named SentenceFirst CAPTCHA. The problem imposed on the users consists of classifying stochasticallygenerated sentences by fluency and legibility and pairs of sentences by semantic coherence.This scheme was implemented and tested by means of several surveys. The answers wereanalysed and the results show that this could very well be a feasible CAPTCHA scheme.

This paper presents a method for license plate recognition through analysis of vehicle images. Accurate location of license plate and extracting characters of plate are implemented. In the plate location module, the paper puts forward arithmetic of plate edge recognition by morphology algorithms. Meanwhile, Radon transform is used to adjust different angles between viewer and license plate. At last, characters extraction is done by histogram. And the extraction characters are matched with the templates. Experimental results show that this approach can recognize license plates more effectively and establish a good technical base for the future advanced license plate recognition.

Music videos are becoming more and more important to an artist. Computer Graphics is a large element in the making of the videos, because of the chances to enhance the end result. That is why the combination of the two is being explored now. A literature review is the starting point of the thesis where the history of music videos and Computer Graphics is researched. After exploring a variety of music videos, nine categories and eight sub-categories was formed to assists those who are looking for inspiration and knowledge of the different graphic styles that could be used in music videos. The sub-categories are not primarily graphics styles, rather tips of what other techniques and styles that can be created with Computer Graphics. To place these in context, some categories are matched with different music genres as well. From that, a different style is developed, called Beat Visualization. That style is then applied to a music video for everyone to become inspired.