One important issue faced by companies is to secure their information and resources from intrusions. For accessing a resource almost every system uses the approach of assigning a unique username and a password to all legitimate users. This approach has a major drawback. If an intruder gets the above information then he can become a big threat for the company and its resources. To strengthen the computer security there are several biometric methods for identity verification which are based on the human body?s unique characteristics and behavior including fingerprints, face recognition, retina scan and signatures.

This paper is a literature study on search engine optimization (SEO) considering the leader of the search engine market: Google. There´s an introductory background description of Google and its methods of  crawling the Internet and indexing the web pages, along with a brief review of the famous PageRank algorithm. The purpose of this paper is to describe the major important methods for improved rankings on Google´s result lists. These methods could be categorized as on-page methods tied to the website to be optimized or off-page methods that are external to the website such as link development. Furthermore the most common unethical methods are described, known as ?black hat?, which is the secondary purpose of the text.

1995 startade medlemmar ur Swedish Oral Medicine Society tillsammans med Institutionen förData och Informationsteknik på Chalmers tekniska högskola projektet MedView. Projektets syfte äratt utveckla modeller, metoder och datorbaserade verktyg för att stödja kliniker i deras dagligaarbete och forskning. 2005 lanserades webbcommunityn SOMWeb och projektet gick in i sin andrafas med fokus på nätbaserad kunskapshantering. Den virtuella mötesplatsen togs emot väl och detbeslutades att satsa vidare på ökad funktionalitet via Internet.Denna rapport beskriver utvecklingen av en webbapplikation som möjliggör åtkomst av denmedicinska bilddatabas som byggts upp under MedView-projektet. Som utgångspunkt förapplikationens funktionalitet och innehåll står skrivbordsapplikationen MedImager.

The ability to tackle NP-hard problems has been greatly extended by the introduction of Metaheuristics (see Blum & Roli (2003)) for a summary of most Metaheuristics, general problem-independent optimisation algorithms extending the hill-climbing local search approach to escape local minima. One of these algorithms is Iterated Local Search (ILS) (Lourenco et al., 2002; Stützle, 1999a, p. 25ff), a recent easy to implement but powerful algorithm with results comparable or superior to other state-of-the-art methods for many combinatorial optimisation problems, among them the Traveling Salesman (TSP) and Quadratic Assignment Problem (QAP). ILS iteratively samples local minima by modifying the current local minimum and restartinga local search porcedure on this modified solution. This thesis will show how ILS can be implemented for MSA.

The aim of this thesis was to look closer into the shelf arrangement and user behavior in a fiction collection with the municipal library in Lund as an example. The purpose was to investigate to what extent the shelf arrangement in this library is adapted to the behavior of users when it comes to searching for and choosing fiction. The study is mainly focused on the division between Hc- and Hce-classified books (Swedish fiction and fiction translated into Swedish), the special shelving of the publications of the last five years, and the genre categorization. The user behavior is primarily examined from the perspective of three search strategies; looking for a specific author or title, browsing within a genre or browsing without having a specific genre in mind. The study also deals with within which genres of fiction the users are searching and if they are looking for a book that is translated or not, new or older.

This Master's thesis in Library and Information Science aims to explore if personal patterns can be detected in web-searching. It is based on a study where the search sessions of nine test persons were video-recorded, transcribed into logs and analysed.A major objective was to find out whether there is a correlation between individual searchers' personal attributes and their web search behaviour. The logs were therefore compared with the test persons' results in a learning style test (Kolb's Learning Style Inventory) and with interview answers about information behaviour and personal background.While several patterns were indeed discovered, none of them turned out to be strictly personal. The nine test persons could be divided into five types of searchers: the purely analytic searcher; the generally analytic searcher; the balanced searcher; the mixed searcher and the browser. All types of searchers were found to have the attribute learning style in common.

This study has researched how user click heatmaps and eye tracking can be utilized in usability testing. We have used the tools SessionCam and Tobii. We designed a website for a small clothing store and conducted usability tests, in order to evaluate the users clicks and eye movements in relation to design choices on the website. The aim of this study was to research how these tools can be integrated in usability testing and how results from the tests can be used to improve usability. We were able to use the recordings of clicks and eye movements and make design changes based on the findings.

In this Bachelor thesis I explore sound and room as elements in design of user interfaces, both theoretical and practical in a specific application domain, to identify some of the advantages and disadvantage associated with these elements. As application domain I studied email clients and their usage at home amongst students at Blekinge Institute of Technology. In the study I found an activity, which seems to be highly distributed in the physical room where the user is located. The activity was notification of email and could take place in an arbitrary location of the home. I then augmented this activity with ideas from my theoretical assumption about room and sound.

The use of internet is growing rapidly and many people choose to spend a lot of their time in the virtual world. This is the reason why we believe that it is important for companies to consider using internet as a tool to reach their customers. Today many companies, especially within the fashion industry, have acknowledged this and use internet marketing to reach existing and potential customers. Social media and search marketing are two helpful tools that can be used in order to make a company visible on the web, given that they know how to use them effectively. The purpose of this study is to examine how companies within the fashion industry can use social media and search marketing to reach their customers and what kind of attitude they have towards using these tools.

This study investigates augmented reality using third person perspective and what precision can be achieved by using this method. There have been prior studies in regards to precision using augmented reality, however studies using third person perspective is scarce. This study presents a solution using a static camera capturing the user as well as the plane to augment from behind. This augmented image is then transferred to a handheld device that is held by the user. Using this method the user will be free to manipulate and work with the plane without removing the device that captures the scene, a common problem when using visual reference markers in augmented reality.

This report presents the redesign of the online-based non-governmental organization Equalisters? (Rättviseförmedlingen in Swedish) website. It aims to achieve an understanding of how you take into account the user and other stakeholders and their interests when developing a website. The focus was on redesigning an existing website and prioritize the different stakeholders? needs.

The aim of this thesis is to study a number of standards and theories, from the two research areas human-computer interaction and psychology, about how a graphical user interface (GUI) should be composed in order to facilitate interaction between humans and computers. Special emphasis is put on how the GUI should take into consideration the strengths and limitations of human cognition and perception. A study of three web catalogues shows how these theories appear when concretised. The following questions are answered in this thesis:What guidelines and styleguides can be found that specify the design of a user-friendly GUI?How do a few library catalogues on the web match a selection of these design principles?The guidelines are extracted from literature concerning human-computer interaction, psychology, automated library systems and web design.

I detta papper, designas och utvärderas en händelsebaserad Android-applikation. MyWorld är en mobil applikation. Händelser som sker i användarens närhet kan ses på en karta. Genom arbetet används beprövade metoder för att skapa en väldefinierad design. Det tas upp problem och lösningar på designrelaterade problem i en händelsebaserad applikation.

Grafiska dokumentgränssnitt används av de flesta datoranvändare. Det finns i huvudsak tre typer av dokumentgränssnitt; MDI (multiple document interface), SDI (single document interface) och TDI (tabbed document interface). I ena halvan av arbetet har dessa tre analyserats utifrån en rad faktorer med målet att se om någon modells fördelar väger över de andras och om man kan skapa några riktlinjer för när det är bäst att applicera respektive modell när man utvecklar en ny programvara. Analysen är baserad på litteratur samt kvalitativ enkätundersökning och programtest. Andra delen av arbetet har ägnats åt testa om det går att programmera så att slutanvändaren kan välja den modell han eller hon föredrar.

This essay is an investigation of the level- and importance of interactivity on YouTube for the active user. YouTube is a great example of a user-friendly Internet environment which enables the users to take part in a virtual community where they can create the content and, with the various functions the site has to offer, interact with each other. With Uses and Gratifications as a tool for this research we look at the motivations and needs of the user and how they come into play on the most popular video distribution site in the world today. Qualitative interviews on Swedish respondents give us insight in how the YouTube-users with their own words perceive this relatively new highly interactive era. We focus on a narrow group of the most popular age-group of YouTube-users to go deeper - not to expand.