<p>This master’s thesis describes how two models from the Swedish Armed Forces; the risk management model and the IT lifecycle model can be combined. An example is then presented for how the risk management model can be extended for threats, risks, and vulnerabilities related to information technology. The combination and extension of the models are based on a literature study that lists and compares models and methods for threat, risk, andvulnerability analyses, as well as an analysis of threats related to information technology. From the combined and extended model, a design proposal for how to implement the identified functionality was identified. Based on an evaluation that showed that the program NTE and the plugin EASTER were suitable as the foundation for this implementation, the program NTE and the plugin EASTER were extended with further functionality and resulted in the implementation of the plugin ASCENSION. This was evaluated and resulted in ideas for a possible re-design and examples of the future potential of ASCENSION.</p>

<p>In order to perform vulnerability and lethality simulations of vehicles it is necessary to describe their geometry in terms suitable for simulation. AVAL is a piece of software used for such simulations, and a main requirement for input geometry is convexity. Manual decomposition is highly time consuming, and in this thesis, a complete algorithm to perform an automatic convex decomposition is presented and described in more detail than previously done. A proof of concept implementation of the algorithm has been made and tested, and example decompositions are shown. The algorithm is based strongly on earlier work in the eld by Bajaj and Dey, but contains solutions to previously undescribed subproblems. As a result the feasibility of using automatic convex decomposition of vehicle-type geometry as a pre-processing aid is shown.</p>

<p>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.</p>

<p>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.</p>

<p>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.</p>

<p>iPhone belongs to the group smartphones. It is a type of mobile phones that has a richer interface and allows more advanced preformences, i.e surfing the Internet and handling e-mails. This report outlines the work to develop an iPhoneapplication from idea to released product. The project is a thesis which was commissioned by ICA AB (a major Swedish grocery chain). The report includes how the work has been carried out in practice and theory. The finished application is part of ICA’s Christmas campaign at Christmas 2009. The report can be viewed as a case study on how to proceed in developing a mobileapplication for marketing purposes.</p>

<p>Coldbase is a column-oriented in-memory database implemented in Java that is used with a specific workload in mind. Coldbase is optimized to receive large streams of timestamped trading data arriving at a fast pace while allowing simple but frequent queries that analyse the data concurrently. By limiting the functionality, Coldbase is able to reach a high performance while the memory consumption is low. This thesis presents ColdbaseTX which is an extension to Coldbase that adds support for transactions. It uses an optimistic approach by storing all writes of a transaction locally and applying them when the transaction commits. Readers are separated from writers by using two versions of the data which makes it possible to guarantee that readers are never blocked.Benchmarks compare Coldbase to ColdbaseTX regarding both performance andmemory efficiency. The results show that ColdbaseTX introduces a small overhead in both memory and performance which however is deemed acceptable since the gain is support for transactions.</p>

<p>Education is evolving and is taking advantage of the digital society. Classrooms, study material, communication, etc. are in their traditional senses fading away and being replaced by their digital counterparts. Because of personal computers, faster Internet, and instant information access the need for Web-based education services has appeared. GoLingual is an on-line platform for language learning. It offers education in six languages and supplies all the necessary tools to learn whenever a user chooses to, and by his or her own preferences.In an on-line environment such as GoLingual it seems suitable to lighten up the education and adopt the paradigm of "learning by playing". Therefore it was decided to add a game to the platform. This paper contains an in-depth study about games for education, how they contribute, and what their drawbacks are. Furthermore, it contains a complete walk-through of how the game for the GoLingual platform was disgned. This includes how the game-play was developed, why the design turned out the way it did, and some technical solutions that made the game possible.</p>

<p>This master thesis is about the development of a web site for three restaurants in South Korea. For the maintenance and updating of the contents of the web site a CMS (Content Management System) was developed. The major part of the work was conducted in South Korea and in close collaboration with the owners of the restaurants in order to improve communication possibilities and to be able to gather materials for the project.A theoretical study was conducted to acquire knowledge about the web development technique Ajax, both from a programming view and how to use it for improving usability of the web site functions.From the results of the theoretical study, methods were chosen and applied into a detailed conceptual model of the web site. This model was used as a base for the implementation of the web site pages and content management functions.The resulting implementation of the web site is based on a common structure for the dierent pages, with contents available in both English and Korean. The updating of the contents is done by Ajax enhanced functions in the CMS, which also contains functions for image uploading, text editing, and layout management.</p>

<p>Esrange Space Center, located in Kiruna, is a company which specializes in the area of satellite service as well as rocket and balloon launches. To communicate with the satellites Esrange use antennas that is between eight and thirteen meters in diameter. The antennas must always be ready to operate which is why there is a need for an application to test the antennas when they are not used.This master's thesis work aims to develop such a system that tests the antennas when they are not communicating with satellites. This report contains background information about the problem and system requirements as well as the solution and description of the developed system. It also contains an in-depth study about similar applications that has been developed by others.To solve the problem, a client-server application was developed. The server controls the test devises used to test the antennas and the client gives the users a GUI to control the server and its functions. An automated system called OASIS, developed at Esrange, was included in the solution to make it possible to automate some of the core tests.</p>