This paper was made together withTechPay AB, by their request.The dissertation has been divided into two separate parts; one of which is fully theoretical, with the focus on the security requirements of a digital cash register, and how to meet these requirements.The second part covers the implementation of anAndroid-oriented Java-library,created with help from the security requirements found in the first part. The purpose of this library is to make it easier to develop a cash register that uses payment terminals from TechPay.This paper also covers different communication protocols, encryption techniques and recommendations from authorities, banks and Android. This paper also contains a small review of how users are validated in applications on the current market that handles money transactions..

Today multi-touch technology is the basis for many new techniques designed to improve interactions with computers and mobile devices. It seems that multi-touch screen interface makes the user handling very natural in the sense that there is no need for a manual in how to interact with the object on the screen. The aim with this paper is to establish a fundamental set of design principles intended specifically for large multi-touch interfaces. To reach this goal we have implemented a couple of sub-goals beforehand: It was essential that we acquired a good understanding of the current state of the multi-touch interface and the different implementations that exist today. To make this possible we constructed a multi-touch display, "Rosie". Knowing how the hardware is produced today will help us understand the limitations and also the possibilities of the design implementations today and in the future. We also needed to devise a sound interaction design process that conveys the modern designers work.

The way we interact with computers will soon change dramatically. The input interfaces are becoming more and more intuitive and one of the latest technologies is a touch screen interface capable of dealing with multiple inputs simultaneously. The tools we use to communicate with the computer - such as the mouse and the keyboard, will slowly disappear and be replaced with tools more comfortable and more natural for the human being to use. The purpose of this project was to create a basic framework for future projects dealing with this interface, as well as creating some example programs. This report describes my work and my experiences with this new interface..

The objective of this project was to develop an application for mobile phones using the Android operating system. The main goal was, with the help of GPS, to pinpoint locations, measure distance traveled and illustrate the progress on a map. Functionalities for just showing the map, fetching addresses and saving to a database was also implemented. The result of the work was a proper application, called MeasureApp, that fulfills the goals set in the planning stages of the project. MeasureApp can be used to measure distances where accuracy is not a main factor, i.e walks or runs.

This thesis examines the problems related to IT in the Swedish healthcare system, specifically the drug searching part of the electronic healthcare systems used in Sweden. The question formulation is divided into two questions: What parameters and functions are of greatest importance when performing a search on drugs, and how should these be presented in a graphical user interface? Thus the purpose is to answer these questions through developing a design concept, in the form of a prototype, which describes how a drug search can be carried out.The entry point is a central quality checked drug database that is managed and owned by Swedish county councils and regions. The problem is attacked through user-centered methods where interviews of physicians and developers, in conjunction with observations, are used to give an overview of the problem area as well as to specify a requirements specification for the prototype that this thesis aims to develop. The thesis result is a requirements specification in combination with a prototype that exemplifies how drug searching can be performed, the prototype is based the requirements gathered from the interviews with the user group of physicians..

Today multi-touch technology is the basis for many new techniques designed to improve interactions with computers and mobile devices. It seems that multi-touch screen interface makes the user handling very natural in the sense that there is no need for a manual in how to interact with the object on the screen. The aim with this paper is to establish a fundamental set of design principles intended specifically for large multi-touch interfaces. To reach this goal we have implemented a couple of sub-goals beforehand: It was essential that we acquired a good understanding of the current state of the multi-touch interface and the different implementations that exist today. To make this possible we constructed a multi-touch display, "Rosie". Knowing how the hardware is produced today will help us understand the limitations and also the possibilities of the design implementations today and in the future. We also needed to devise a sound interaction design process that conveys the modern designers work.

Denna artikel är inriktad mot att integrera Facebook med Android applikationer. Artikeln kommer att hjälpa personer som försöker att integrera sin applikation med Facebook. De lösningar som jag tar upp är grundläggande för att integrera Facebook med Android med sättet jag valde för att utföra dessa lösningar är anpassade till applikationen ?MyWorld?, men kan även anpassas till vilken applikation som helst beroende på hur man vill att sin applikation ska se ut. Målet med arbetet var att ersätta vissa funktioner i MyWorld med Facebook, som till exempel inloggning, registrering och vän hantering.

The eld of Brain-computer interfaces (BCI) concerns linking together an external device with the brain of a human or an animal. By doing this the conventional use of a mouse or keyboard can be circumvented, which can greatly benefit people with different types of diseases that cause paralysis or other loss of motor control, such as Amyotrophic lateral sclerosis (ALS). A BCI can also be used for cognitive training of either healthy or mentally impaired subjects to increase cognitive capabilities.In this thesis an implementation of an interface is made against such a device, the Emotiv EPOC Headset. The result is meant to be a stable basis for further study using the device. An in-depth study of the history of EEG and its current use in clinical work and research in the topics of BCI as well as Human-computer interaction (HCI) is presented.

Denna rapport är inriktad på batteribesparing för platsbaserade applikationer i Android. Rapporten kommer att analysera och ge konkreta förslag på hur man på ett batterisnålt sätt implementerar lokalisering av Androidenhetersgeografiska position (latitud- och longitudkordinater) samt frekvent hämtning av data via HTTP från en back-end server. De lösningar som tas upp i den här rapporten är specifikt tillämpade för applikationen MyWorld men kan anpassas för vilken platsbaserad applikationen som helst med liknande behov. Målet är att förbättra och optimera utvalda områden som tidigare implementerats i den här applikationen. De nya optimerade lösningarna har genomgått två olika testscenarion där mätningarna visar att batteriförbrukningen har reducerats med 4,2% för applikationen då den aktivt körs och används samt 14,8% för applikationen då den är icke aktiv och enheten inte aktivt används..

When searching for better and more practical interfaces between users and their computers, additional or alternative modes of communication between the two parties would be of great use. This thesis handles the possibilities of using eye and head movements as well as voice input as these alternative modes of communication. One part of this project is devoted to find possible interaction techniques when navigating in a computer interface with movements of the eye or the head. The result of this part is four different controls of an interface, adapted to suit this kind of navigation, combined together in a demo application. Another part of the project is devoted to the development of an application, with voice control as primary input method.

When a videogame is being played it is rarely a static experience. A videogame can consist of various systems that affect each other in an unpredictable manner which makes the player experience unique for every player.Throughout the years developers of games have used random chance in a games programming to affect the user experience. Sometimes it even goes so far as to having entire games based around the idea of the game itself randomly generating content for a player to experience.This paper will examine randomly generated content in videogames. It will take examples from existing ones and describe how they use it, and reason regarding the benefits and drawbacks of having random chance affect the user experience.The paper will step-by-step examine the purpose of various commonly occurring objects and features of a typical dungeon in an adventure videogame. It will reason around their purpose, and figure out ways to use them in a structured  manner so that we can guarantee that there will be no deadlocks that the player can't overcome.This will range from the environments in rooms, the shape of them, to the objects and creatures that inhabit them, such as locked doors, keys, and bosses.

Genom att använda ett multiplattformsutvecklingsverktyg kan utvecklare distribuera applikationer till flera olika plattformar. Problemet är att dessa verktyg inte är lika välanvända eller dokumenterade som de dedikerade (t.ex. Android SDK) och det kan vara svårt för enskilda utvecklare eller företag att veta vilket verktyg de ska välja. Efter en grundlig kartläggning av flera multiplattformsutvecklingsverktyg valdes slutligen Corona SDK och PhoneGap ut för vidare utvärdering. Utvärderingen utfördes genom att skapa en applikation som sparar, raderar och visar noter i båda verktygen liknande en utvecklad med Android SDK.

Syftet med detta projekt ar att undersoka mojligheten attkommunicera med en militar GPS-mottagare via serieportsgranssnittetRS-232 fran en mobil enhet. Malet ar att endastanvanda existerande hardvara som inte kraver att enhetensfasta programvara eller operativsystem byts ut. Smarttelefoneroch pekplattor har blivit allt vanligare och de erbjuderi regel hogre grad av barbarhet och battre batteritidan traditionella barbara datorer, samtidigt som derasberakningskapacitet ar likvardig. De tva storsta systemenpa marknaden idag ar Android och iOS. Jag valde darforatt undersoka deras mojligheter att anslutas till kringutrustninggenom RS-232.

Usability is a well-known term in system development. Today both consumers and organizations aim to increase usability. The purpose of the study is to gain knowledge about inexperienced users? interactions with websites and concretize that knowledge for future studies.Interviews have been conducted within two areas where experienced web developers with extensive programming knowledge brought know-how while inexperienced users without any programming knowledge have given their views. A number of existing tools for web publishing have been analyzed.

This is the end report of my final exam at Medieteknik. It covers the planning, work process and review of a Flash based web application that I set out to do. The goal was to create a user friendly, interactive e-shop with embedded functionality for playing music, displaying rich media content and researching possible payment solutions, to enable buying music files online. The project involved creating the user interface, the programmatic functionality of a Flash client (an SWF file). Also, setting up an Apache HTTP Server and establishing a working ?bridge? between the Flash client and the web server with Flash Remoting components and AMFPHP.