Made available in DSpace on 2015-04-16T15:23:20Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 1909532 bytes, checksum: 448993fd6ad6c3ba5d469243d8845541 (MD5) Previous issue date: 2012-06-19 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / The Carta de Serviços ao Cidadão of the Universidade Federal da Paraíba aims at inform the citizens the services provided by this university. The Portal of the Centro de Ciências Humanas Letras e Artes (CCHLA) is part of the web information source indicated by such document. Thus, the present research intends to collaborate to the increasing of the quality in use of this source of information through the Study of Users in the Information Science area based on the Usability Engineering, mainly the concept of usability by Jakob Nielsen, associated to the attributes of: learning facility, use efficiency, memorizing facility, error occurrences and subject satisfaction. Besides, this research discusses the history of the Study of Users and its traditional, alternative and hybrid approaches, conceptualizes both the corporative websites and the Architecture of Information and characterizes the Usability. This descriptive quantitative qualitative research was developed with 471 students of the Social Science undergraduate course, and of the Sociology and Anthropology postgraduate courses, its sample was of 59 users. The data collection procedure was through online questionnaire put over the classrooms and other places in the CCHLA, including its homepage, in the websites of the given courses and of the Departamento de Ciências Sociais. The analysis of Usability of the CCHLA portal was done considering as reference the general and specific categories which evaluation resulted from the Likert scale related to the questionnaire response agreement criteria. The research revealed that the portal users were predominantly undergraduate students in their first year course in Social Science and experienced internet users who monthly access the portal to get information about the Departamento de Ciências Sociais. All the attributes have reached a good level average, which resulted in a good level of the users´ performance and satisfaction in the interaction with the portal. Therefore, the portal quality proved to be good facing the overall usability average being classified as good usability - 3.2 average in an interval of 0,0 to 5,0 points. / A Carta de Serviços ao Cidadão da Universidade Federal da Paraíba tem como objetivo o de informar o cidadão sobre os serviços prestados por esta universidade. O portal do Centro de Ciências Humanas, Letras e Artes (CCHLA) compõe o conjunto de fontes de informação web indicadas pela referida carta. Sendo assim, esta pesquisa procura colaborar para o incremento da qualidade do uso dessa fonte de informação por meio dos Estudos de Usuários, no campo da Ciência da Informação, com base na Engenharia da Usabilidade, mais precisamente, no conceito de usabilidade, definido por Jakob Nielsen, associado aos atributos: facilidade de aprendizado, eficiência de uso, facilidade de memorização, incidência de erros e satisfação subjetiva. A pesquisa discorre sobre a história dos Estudos de Usuários e suas abordagens tradicionais, alternativas e híbridas; conceitua os portais corporativos e a Arquitetura da Informação; caracteriza a Usabilidade; é de natureza descritiva fundamentada em um método quantitativo e qualitativo. Seu universo é formado por 471 discentes dos cursos de graduação em Ciências Sociais, pós-graduação em Sociologia e pós-graduação em Antropologia, tendo por amostra 59 sujeitos. Procedemos à coleta de dados mediante a divulgação do questionário online nas salas de aula e noutros ambientes do CCHLA, nos websites dos cursos citados, do Departamento de Ciências Sociais e na própria homepage do portal do CCHLA. A análise da usabilidade deste portal foi realizada com referência a categorias gerais e específicas, cujas avaliações resultaram de atribuições de pesos da escala de Likert relativas a critérios de concordância das respostas ao questionário. A pesquisa revela que os usuários do portal são, predominantemente, discentes de graduação em seu primeiro ano no curso de Ciências Sociais, internautas experientes, que mensalmente acessam-no para consultar informações sobre o Departamento de Ciências Sociais. Todos os atributos atingiram uma média de bom nível, o que resultou em um bom nível de desempenho e satisfação dos usuários na interação com o portal. Consequentemente, sua qualidade foi comprovada em vista da média da usabilidade geral obtida ser classificada como de boa usabilidade média 3,2 num intervalo de 0,0 a 5,0 pontos.

Made available in DSpace on 2015-04-11T14:02:40Z (GMT). No. of bitstreams: 1 fabio.pdf: 4867233 bytes, checksum: 50fd99e07e3a0dec4c10f9701864abed (MD5) Previous issue date: 2011-03-03 / Usability Inspections are methods used to verify the software s quality in relation to its interaction with users. The applications acceptability is directly related to their usability. Thus, the goal of this work is to develop ways to assist the inspection execution, providing better costeffectiveness. In this thesis, we present an assistant to support the inspection process with a focus on usability of traditional software applications and Web applications. This wizard, called APIU, aims at reducing the time spent during the inspection execution and to achieve better management of the inspection process. The wizard s requirements were defined based on practical experience in inspections and usability testing as well as studies found in current literature. This thesis presents how the proposed APIU assistant was defined and developed, the context in which it can be used, as well as studies for the improvement of the wizard. / As inspeções de usabilidade são métodos utilizados com o objetivo de verificar a qualidade de um software em relação à interação com os usuários. A aceitabilidade das aplicações está diretamente ligada à usabilidade das mesmas. Desta forma, o objetivo deste trabalho é desenvolver meios que auxiliem a execução de uma inspeção, dotando essa atividade de melhor custo-benefício. Esta dissertação propõe um assistente de apoio ao processo de inspeção de usabilidade, o APIU, voltado para aplicações de software tradicionais e aplicações Web. Este assistente de apoio objetiva reduzir o esforço gasto durante a execução de uma inspeção e apoiar um melhor gerenciamento da mesma. Este assistente teve seus requisitos definidos a partir de experiências práticas em inspeções e testes de usabilidade, além do estudo de trabalhos disponíveis na literatura. Esta dissertação apresenta como o APIU foi definido e desenvolvido, o contexto em que ele pode ser empregado e os estudos realizados para o aprimoramento do assistente.

Despite the development of injury surveillance systems for use at large multi sportsevents (Junge 2008), their implementation is still methodologically and practicallychallenging. Edouard (2013) and Engebretsen (2013) have pointed out that thecontext of athletics championships feature unique constraints, such as a limiteddata-collection window and large amounts of data to be recorded and rapidlyvalidated. To manage these logistical issues, Electronic Data Capture (EDC) methodshave been proposed (Bjorneboe 2009, Alonso 2012, Edouard 2013). EDC systemshave successfully been used for surveillance during multi-sport events Derman et al(2013) and its potential for surveillance studies during athletics championships istherefore interesting. The focus for surveillance during athletics championships hasthis far been on injury and illness data collected from team medical staff in directassociation to the competitions. But the most common injury and illness problems inathletics are overuse syndromes (Alonso 2009, Edouard 2012, Jacobsson 2013) andknowledge of risk factors associated to these problems is also relevant in associationto championships. A desirable next step to extend the surveillance routines istherefore to include also pre-participation risk factors. For surveillance of overusesyndromes, online systems for athlete self-report of data on pain and othersymptoms have been reported superior to reports from coaches (Shiff 2010). EDCsystems have also been applied for athlete self-report of exposure and injury data inathletics and other individual sports and have been found to be well accepted with agood efficiency (Jacobsson 2013, Clarsen 2013). There are thus reasons forinvestigating EDC system use by both athletes and team medical staff during athleticchampionships.This thesis used a cross-sectional design to collect qualitative data from athletes andteam medical staff using interviews and “think-aloud” usability evaluation methods(Ericsson 1993; Kuusela 2000). It was performed over 3 days during the 2013European Athletics Indoor Championships in Gothenburg, Sweden. Online EDCsystems for collection of data from athletes and team medical staff, respectively,were prepared for the study. The system for use by team medical staff was intendedto collect data on injuries and illnesses sustained during the championship and thesystem for athletes to collect data on risk factors.This study does not provide a solution in how an EDC effort should be implementedduring athletics championships. It does however points towards usability factorsthat needs to be taken into consideration if taking such an approach.

Denna rapport handlar om en användbarhetsutvärdering av synthesizern OP-1, utvecklad av företaget Teenage Engineering. Studien är kvalitativ och undersöker bara den omedelbara användarupplevelsen av produkten. Rapporten baseras på resultat från ett antal användbarhetstester, utförda på företaget i fråga. Användbarhetstesterna avser att undersöka hur en användare kan förstå hur OP-1:s kan användas och hur de kan förstår dess olika lägen och vidare på vilket sätt detta påverkar den initiala användarupplevelsen. Totalt nio av fjorton tillfrågade personer har ingått i användbarhetstesterna. Urvalsgruppen bestod av personer med tidigare, dock varierande mängd, erfarenhet av synthesizers. I den teoretiska referensramen förenas Jonas Löwgren och Erik Stoltermans brukskvalitetsteorier tillsammans med valda delar av Donald Normans ” Seven Stages of Actions as Design Aids”. Resultatet visar att användarna snabbt kommer igång med synthesizerns grundläggande funktioner. Samtliga användare tycker att OP-1 är estetiskt tilltalande, underhållande och uppskattar dess portabla format, med vilket de ser användningsområden i både resor och livesammanhang. Användarna anser också att de inte alltid måste förstå synthesizerns grafiska element, på display eller knappar, då detta tydliggörs efter användning av produkten. Användarna visar svårigheter med funktioner som pattern sequencer och viss redigering i tape. Vidare har de även ibland svårt att förstå i vilket mode som synthesizern befinner sig i. Samtliga användbarhetstester utfördes på en pre-betaversion av OP-1. Den slutgiltiga versionen av synthesizern har uppdaterats utefter resultaten från den här undersökningen. / This report is based on results given from usability testing of the synthesizer OP-1 developed by the company Teenage Engineering. The study has involved potential end users during the development process and aims only to look at the first experience the user gets from the interaction with the synthesizer. The meaning of the usability tests is to find out how the user can understand how to use OP-1, how intuitive the different modes are and how this affects the initial user experience. Nine people, out of a total amount of fourteen asked, participated in these usability tests. The selection of participants is based on their previous knowledge and experience of synthesizers. The theoretical frame of reference includes Jonas Löwgren and Erik Stoltermans theories of use qualities and are combined with chosen parts of Donald Normans ” Seven Stages of Actions as Design Aids”. The shown results indicate that the users quickly understand how to use the basic modes and features of the synthesizer. All of the participated users think OP-1 is entertaining, finds the design of OP-1 attractive and appriciates its portability, in which they see potential for both travelling and live performances. The users do not always fully understand the graphical elements but reckon that it is not always necessary to, neither in the display, nor on the buttons, since this clearifies after further usage. The users show some difficulties interacting with functions such as the pattern sequencer and some editing in tape mode. The users also sometimes show difficulties determining which mode the synthesizer is in. All of the usability tests were performed on a pre beta version of the OP-1. The final version of the synthesizer has been updated with changes influenced by the results of this report.

Universal Design is a well established methodology with the fundamental purpose of designing products to be usable for as wide audience as possible, without the need of special adjustment to suit the individual. In this essay, Universal Design has had a clear influence in both the process and the result. The choice to use Universal Design as methodology in this usability evaluation, has essentiallv to do with the target audience. As a part of the design process of MyTobii C8 has Tobii Technology ask for a usability evaluation. MyTobii C8 is an 8" touch screen computer with a windows based operating system which will initiate the software MyTobii C-Series Control. MyTobii C-Series Control is the control panel for MyTobii C8, whose interfaces constitute the platform for various modificarion of the unit. The interface of MyTobii C-Series Control is also the interface being evaluated. Because of the target audience being persons with different motoric and cognitive disabilities and theirs assistances, it is of great important that the interface is suitable for as many people as possible. With user tests, designed and analyzed with the help of Universal Design, different usability problems has been  identified and solved. Among the usability problems encountered the most vital has been the size and placement of the interactive parts and the physical interaction with the unit. / Universell Design är en genomarbetad metodologi, framtagen i syfte att göra produkter användbara och anpassade för så bred publik som möjligt, utan att produkten måste anpassas för individens egna förmågor. I detta arbete har Universell Design haft en tydlig och grundläggande roll i genomförandet och resultatet. Valet att använda sig av Universell Design i denna användbarhetsutvärdering har framför allt med fallstudiens målgrupp att göra. Som en del av utvecklingsprocessen av MyTobii C8 har Tobii Technology efterfrågas en användbarhetsutvärdering. MyTobii C8 är en åtta tums touch screen dator med Windows-baserat operativsystem som vid start kommer att initiera mjukvaran MyTobii C-Series Control. MyTobii C-Series Control är kontrollpanelen för MyTobii C8 vars gränssnitt utgör plattformen för diverse inställningar av enheten det är också detta gränssnitt användbarhetsutvärdetingen har gjorts på. Då målgruppen för MyTobii C-Series Control är personer med motoriska och kognitiva handikapp samt deras assistenter och närstående personer, är det av stor vikt att gränssnittet är anpassat för så bred publik som möjligt. Genom användartester utformade och analyserade med hjälp av Universell Design har användbarhetsproblem samt förslag på lösningar presenterats. Bland de användbarhetsproblemen som påträffats har det framför allt varit storleken, placeringen av de interaktiava delarna samt själv interaktionen med touch screen skärmen  som har vant väsentliga.

The work described in this thesis is aimed at comparing Raspberry Pi model 3 B and Arduino Uno with an ESP8266 wifi module to see which one is most suitable to use in a Internet of Things project where data collecting from an sensor, processed and then presented. The method for this comparison is to divide the work. First, price and power consumption will be evaluated. Then, the stability of communication over wifi will be tested. Finally, the time it takes to design a program on the platforms will be measured. The result from the comparison show that the Raspberry Pi is the best choice for this type of Internet of Things projet. However, which platform to choose depends on the specific goals of the project since the platforms are good at different things. A server written in Python communicates with the Raspberry Pi by using socket to socket communication, the Raspberry Pi collects the data from the sensor and then sends it to the server. The server then saves the data in a database by the unit identification number. Then a webpage was designed that presented the data to the user. A usabiity test was done on the webpage and the result from the usability test showed that the test users was satisfied with the usability with the page, exept the choice of colors, which was fiexd. / Arbetet beskrivet i detta examensarbete går ut på att jämföra vilken av plattformarna Arduino Uno med en ESP8266 wifi-modul och Raspberry Pi 3 modell B som är mest lämplig att använda i ett Internet of Things projekt där inhämtning av data, bearbetning av data och presentation av datan. Metoden för arbetet är att dela upp det i olika moment, först undersökt faktorerna pris och strömförbrukning därefter testas kommunikationen över wifi för de olika plattformarna och därefter hur lång tid det tar att skapa ett test för kommunikationen på varje plattform. Resultatet av jämförelsen är att Raspberry Pi är mest lämplig för detta projekt, men att avgöra vilken plattform som ska användas i Internet of Things beror till störst del på vilka krav som finns, eftersom bägge plattformarna har sina egna fördelar mot varandra. En server skriven i python hämtar datan från sensorn via Raspberry Pi med hjälp av socketmeddelanden, därefter sparas datan i en databas där ett identifieringsnummer för plattformen styr sparandet av datan. För att kunna presentera datan från sensorn så skapades en webbplats som hämtar datan från databasen beroende på om användaren skickar en begäran från webbplatsen. Ett användartest har genomförts på webbplatsen för att undersöka användbarheten. Användartestet visade att webbplatsen hade de funktioner som användarna ansåg behövdes, enda åtgärdspunkten var färgsättning på webbplatsen som åtgärdades.

Viva la Diva är ett Svenskt makeup-varumärke som nyligen har lanserat sin nya webbplats. Denna webbplats har inte blivit testad på deras slutanvändare eller målgrupp. Genom att använda en heuristisk utvärdering och 12 Think aloud-tester har flera användbarhetsproblem upptäckts där designen behöver förbättringar. Senare i rapporten presenteras några förbättringsförslag om hur användarupplevelsen kan förbättras på webbplatsen, men också hur problemen som jag fann under utvärderingen och Think aloud-testerna kan lösas. Jag tillhandahåller också för Viva la Diva ett designförslag för en av deras sidor som inte är helt färdig i designen. Detta arbete ger insikt i hur man kan använda en heuristisk utvärdering och Think aloudtester för att upptäcka användbarhetsproblem på webbplatser. / Viva la Diva is a Swedish makeup-brand that has recently launched their new website. This website has not been tested with their end-users or target users. By using a heuristic evaluation and 12 Think aloud-tests several user problems have been discovered where the design needs improvements. Later in the article I present some suggestions on how to improve the user experience on the website, as well as fix the problems that I found during the evaluation and Think aloud-tests. I also provide Viva la Diva with a design suggestion for one of their pages that is not completely finished in the design. This work provides insights on how to use a heuristic evaluation and Think aloud-tests to discover usability problems on websites.

This study aimed to develop a help system for a communication app, identify usability issues regarding that help system and develop redesigns to improve it. The focus was to maximize perceived usefulness and minimize perceived annoyance of the help system. During the study two design proposals were developed and two user tests, which used low-fidelity prototypes. were performed to evaluate the design proposals. The first design proposal was evaluated in the first user test, thereafter an iteration of that design was developed based on the usability issues found in the user test. This iteration of the design was the second design proposal which were evaluated in the second user tests. Both design proposals and data from both user tests were analysed to- gether which resulted in seven recommendation that aimed to maximize perceived usefulness and minimize perceived annoyance when developing a help system for a communication app. Due to a lack of generalizability these recommendations should however be used with caution since they are mainly applicable to the system evaluated in this study. They can however be used as an inspi- ration and a starting point for someone designing a help system for an other communication app.

Fältet för användbarhetstestning är fullt av metoder, men av någon anledning är det en väldig brist på studier som jämför metoderna mot varandra och kontrollerar om dessa metoder, som utger sig för att generera samma typ av data, faktiskt är likvärdiga. Denna studie jämförde två användbarhetstestningsmetoder vid namn SUS och PSSUQ. Först jämfördes metodernas metamedelvärde med varandra för att se om det fanns signifikanta skillnader mellan metodernas rådata och sedan utökades analysen till att jämföra metodernas resultat med den normativa mall som respektive metod ger tillgång till. Dessa två olika jämförelser gjordes ett flertal gånger med olika antal försöksdeltagare vid varje iteration. Resultatet av studien visade att inga statistiskt signifikanta skillnader fanns mellan metodernas metavärde (värden transformerade till en skala mellan 0 och 100) och att inga statistiskt signifikanta skillnader hittades mellan dessa två mätinstrument då deras resultat jämfördes mot de normativa mallar som metoderna ger tillgång till, men även om inga statistiskt signifikanta skillnader hittades visar resultatet på en viss skillnad i hur ett system uppfattas beroende på vilken metod som används, vilket innebär att liknande studier borde genomföras.

Für die Konstruktion gebrauchstauglicher Anwendungssysteme ist eine exakte Evaluierung der Usability eine wertvolle Unterstützung. Zu diesem Zweck werden in der Praxis häufig Usability-Fragebögen herangezogen. Im deutschen Sprachraum sind die beiden Fragebögen Isonorm 9241/10 und Isometrics, die beide Software gemäß der EN ISO 9241-110 evaluieren, weit verbreitet. Die vorliegende Studie widmete sich einem Vergleich dieser beiden Fragebögen hinsichtlich testtheoretischer Gütekriterien. Im Rahmen eines experimentellen Designs wurden die beiden Fragebögen eingesetzt um die Usability von zwei Standard-Softwarepaketen zu bewerten. Hinsichtlich der inhaltlichen Validität der Fragebögen zeigten die Ergebnisse eine hohe Übereinstimmung der Usability-Messung der beiden Fragebögen. Auch weitere testtheoretische Analysen lieferten eine ähnliche Qualitätsbeurteilung beider Fragebögen, weshalb sie aus diesem Blickwinkel gleichermaßen für Forschung und Praxis empfohlen werden können.