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1557 Uppsatser om User Interface - Sida 31 av 104

Den användarskapade elden Risker och möjligheter med kriskommunikation i sociala online-nätverk

Title The User Created Fire ? Risks and Opportunities with Crisis Communication in Social Network SitesAuthor Charbel SaderCourse Master Thesis in Media? and Communication Studies, Department of Journalism and Communication, University of GothenburgSemester Spring semester of 2013Tutor Nicklas HåkanssonNumberof pages 75Purpose To find a deeper understanding of the digital media?s role in Swedish society in relation to crisis communication.Method Qualitative approach using focus group interviewsMaterial Semi structured focus group interviews with a total of 18 participants in five groups. The focus group sessions were made during February, March and April 2012.Main results The main findings in this study are that users expect the communication flow in social network sites (SNS) during a crisis is to be a shortcut to information without a detour through organizations or traditional media. Although we find personal gratification, like interpersonal communication, quick information and sharing feelings and experience with others by using SNS during a crisis, users also tend to be hesitant about the credibility of the shared information. Alongside the user created content, we look to professional media experts and organizations as a guarantee for the veracity of the shared information.

UTVECKLING AV PROCESSORPLATTFORM

Abstract The purpose of this project is to develop a modular processor card which is intended to work as a platform for Kitron Development Karlskoga. The modular processor card is meant to be used as a control system in development projects, mainly in medical and industrial products. The processor card will consist of a central unit with the basic functions for a control system. Furthermore there will be complete modules with machine commodity and programming, to pick exactly the necessary functions for a specific application. With consideration to the specification of the development and the main unit, I chose an adequate microprocessor (AT90CAN32) as core and interface circuits to stated border areas. The construction is first completed in the program MultiSim and then remade in the program OrCAD Capture. The programming language C was used in the software model.

Apputveckling : En studie av motsättningar mellan design- och användningspraktiker ur ett verksamhetsteoretiskt perspektiv

We live in a high tech era of electronic media, which is changing our lives (Giddens, 1999). Apps are examples of technologies that affect our lives. An interesting question in this context is what apps will have for significance; on one hand for the development of technology, and on other hand for humans? relation to technology. Since the development and change process are central issues in the science of education I will explore the development of applications.

Hylluppställning och användarbeteende i en skönlitterär samling : en fallstudie av Lunds stadsbibliotek

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.

Social fildelning på arbetsplatsen : Traditionell och social fildelning

This paper describes how files and information can be shared in organisations and workplaces. We studied and compared the traditional file sharing in Microsoft Active Directory and the Social file sharing that comes with Microsoft SharePoint Sites. We used qualitative studies based on interviews with system administrators, management and by our own observations to acquire the necessary data. Using independent research, we were able to analyze the data and show the general difference between the traditional and the social file sharing systems. Social file sharing enables the user to easily store and share files in a flexible online environment.

Den uppkopplade enkätundersökningen : En studie av informationsvisualiseringen i Mentimeter

A new phenomenon on the Internet is the online audience response. Mentimeter is a web-based tool where you can create online polls. The users can then cast a vote and the result is shown in real time. We want to test the information visualization in Mentimeter and we base our hypothesis, that a better graph design is possible, on the work of Edward Tufte and Stephen Few. Edward Tufte is an emeritus at Yale University, where he held courses in statistical evidence and information design and has created theories about how visual information should be designed.

Brukardemokrati i grundskolan - En studie av fyra brukarstyrelsers påverkan på skolledning och politiker

According to the theory of elitist democracy civic political participation should be reduced to participation in the democratic elections. This essay examines whether a high rate of institutionalized political participation beyond the elections leads to: (a) that those who are included gets a more favourable treatment at the expense of the common interest, in other words that their self interest threatens the political equality, (b) reduced freedom of action for the politicians and the headmasters, (c) the emergence of vague conditions of responsibility. These hypotheses are examined in an empirical study of user-boards at four schools on three locations in southern Sweden. In these user-boards the parents are in majority and have the right of decision, which has been delegated to them from the local government and the headmaster. The main conclusion is that, based on this empirical investigation, there is no support in any of the hypotheses.

?Vi vill ju så gärna hjälpa dom? : Problem och möjligheter med användarundervisning vid ett universitetsbibliotek

The purpose of this essay was first and foremost to find out the problems that exist around user education in a university library and the opportunities that exist for university librarians to improve their work with students. My method of use was qualitative and more precise qualitative interviews. By interviewing five teaching librarians with five different subject specializations, I wanted to get an an-swer to what they teach when they meet the students and how they view their teaching. Responses resulted then in an analysis using Christine Bruce's theory of information literacy and Carol C. Kuhlthaus theory of librarian roles and her theory of information retrieval process.

Användarinvolvering -        en viktig faktor vid implementering av affärssystem i små företag

Idag är det många företag som misslyckas med sina implementeringsprojekt av affärssystem och många forskare anser att det beror på bristande användarinvolvering. Implementeringsprojekt av affärssystem blir allt vanligare i små företag, men effekten blir dock stor om ett mindre företag misslyckas med sitt projekt. Små företags misslyckanden är oftast relaterade till finansiella och humanitära kritiska framgångsfaktorer. Ett affärssystem kan ge ett företag en rad olika fördelar och möjligheter. Men för att ett företag ska uppnå dem krävs ett lyckat implementeringsprojekt samt att användarna omgående efter driftstart kan använda affärssystemet. Därför måste företagsledare under projektet se till en rad olika kritiska framgångsfaktorer som är relaterade till användarinvolvering.

Bildanalys för navigering i autonoma sensor-platformar

Det bör vara möjligt att skapa verktyg för att beskriva scenarion och med hjälp av tillgänglig mjukvara för visualisering kunna spela upp både verkliga och simulerad bilddata. Detta examensarbete beskriver hur några sådana verktyg tagits fram. Till förfogande fanns en stor mängd bilddata, insamlad på ett militärt övningsområde som dessutom finns representerad som en syntetisk omvärldsmodell. Insamlingen gjordes med en UAV (Unmanned Aerial Vehicle)- prototyp, som var utrustad med videokamera, IR-kamera och tröghetsnavigeringssystem. För att simulerad bilddata skulle få ett verklighetstroget intryck placerades markfordon ut i den syntetiska modellen på exakt samma position som under fältförsöken.

Mätning av Tidens Inverkan på Användarupplevelsen : En Fallstudie

Det finns i dagsläget få tids- och kostnadseffektiva metoder och tekniker för att mäta och utvärdera användarupplevelse över tid. Detta trots att tidsaspekten av användarupplevelsen under de senaste åren har uppmärksammats som en viktig komponent av användarupplevelsen inom människa-dator-interaktionsforskning. UX Curve och iScale är två metoder framtagna för att mäta förändringar i användarupplevelse över tid med hjälp av retrospektion och skapande av grafer över utvecklingen av användarupplevelsens olika dimensioner.Mot bakgrund av dessa metoder togs ett webbaserat utvärderingsverktyg fram med målet att undersöka verktygets förmåga att mäta förändringar i användarupplevelse under en utvärderingsperiod. Verktyget testades på 9 deltagare i en utvärdering av en mailklient under två veckors tid.Resultatet indikerar att utvärderingsverktygets dimensioner samlar upplevelser av relevans för de dimensioner som undersökts men visar också på att ytterligare testning och validering av metod och verktyg behövs för att fastställa att mätningarna är reliabla och att det som mäts är vad som avses mätas..

Användarundervisning på webben design för lättillgänglighet och användbarhet

The aim of this thesis was twofold, on the one hand to compile a set of usability and accessibility guidelines in order to establish the characteristics of a user friendly website, and on the other to test these guidelines on eight library webcourses with user education to see how well they adhered to the guidelines. The methods used were literature survey and source studies. The guidelines found in the literature survey were divided into four different categories: document properties, structure and navigability, visual characteristics and accessibility. In order to establish the adequacy of the guidelines, I examined reference sources, mostly on the web. To a certain extent this examination has been based on HCI Human-Computer interaction theories.

Electronic Journals, Just in Case, Just in Time, Just for You ? användning av elektroniska tidskrifter vid Chalmers tekniska högskola

This user study was carried out at the library at Chalmers University of Technology in Gothenburg in the spring of 1999. Chalmers wanted to investigate how much their employees use electronic journals. To facilitate decision-making and be cost effective, the library needed to know about their customers' opinions. The main purpose was to investigate the usage of electronic journals, how the library's choice of these journals affects the frequency of use and what the attitudes towards them are. A questionnaire was sent out to 2 400 employees; 477 replies were received.

Optimerad bildsökning ? Bör vissa egenskaper prioriteras vid sökning efter en viss kategori av bilder?

As the information society becomes increasingly flooded with digital images, the need for efficient image retrieval systems increases as well. To handle the vast amounts of data involved, the indexing process needs to be run automatically, using content-based descriptors extracted directly from the digital image, such as colour composition, shape and texture features. These content-based image retrieval systems are often slow and cumbersome, and can appear confusing to an ordinary user who does not understand the underlying mechanisms. One step towards more efficient and user-friendly retrieval systems might be to adjust the weight placed on various descriptors depending on which image category is being searched for. The results of this thesis show that certain categories of digital images would benefit from having extra weight assigned to colour, texture or shape features when searching for images of that category..

En undersökning i datasäkerhet för hemanvändare - Är det nödvändigt att använda brandvägg?

The emphasize of this study is to evaluate security issues for home users having a personal computer connected to the Internet. It focus on the usage of advantages and disadvantages when using a firewall while connected to the Internet. The hypothesis is that it gives a better protection to install and use a firewall compared not to do so, due to security flaws in the operating system. The prediction was tested on a home user's personal computer. The testwork was divided into two major tests, each of them performed with, respectively without, a firewall. These major tests were divided into five smaller semi­ tests. The first semi­test without a firewall suffered from a virus or worm attack resulting in loss of data and log files.

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