I takt med att streaming, eller "strömning" som det heter på svenska, av filmer, serier och musik ökar i popularitet runt om i världen så är användbarhet en aspekt som får allt större betydelse vid utformning och design av olika tjänster. Det räcker inte med att enbart erbjuda åtråvärda tjänster och funktioner, de måste också presenteras som lättförståeliga och vara lättanvända. Spotify och Netflix är två auditiva och visuella digitala underhållningstjänster som borde vara anpassade för alla människor, oberoende från tidigare erfarenheter och förutsättningar. Men är de verkligen det?  Denna studie syftar till att undersöka användbarhet hos digitala underhållningstjänster för synskadade. De nyckelmetoder som använts i studien består av intervjuer och testdrivna experiment. En serie intervjuer genomfördes med ett selektivt urval av synskadade personer i Sverige. Ett testdrivet experiment utformades och genomfördes sedan där ett selektivt urval av synskadade personer agerade som testare i ett användarbaserat test. Resultatet påvisar att ett antal faktorer påverkar användbarheten när synskadade interagerar med de utvalda tjänsternas gränssnitt. Viktiga faktorer inkluderar; typ av plattform tjänsten används på, grad av synnedsättning, uppdateringar för tjänsten, otillgänglig design och användarens erfarenhet av tjänsten. Studien har även identifierat att användbarheten hos de undersökta digitala underhållningstjänster för synskadade är olika för olika enheter, där gränssnitten på smartphones är mer användbara än gränssnitten på P.C. Dessa resultat leder till slutsatsen att synskadade användare inte kan nyttja de undersökta digitala underhållningstjänsterna på ett självständigt och tillfredställande sätt. / As streaming of movies, television series and music is gaining popularity around the world, usability is an aspect that is becoming increasingly important in the design of various services. It is not enough to offer only desirable services and features, they must also be presented as easily understood and easy to use. Spotify and Netflix are two auditory and visual digital entertainment services that should be adapted to all people, independent of earlier experiences and conditions. But are they really? This study aims at investigating usability of digital entertainment services for the visually impaired. The key methods employed in the study consists of interviews and test driven experiments. A series of interviews were conducted with a selected sample of visually impaired individuals in Sweden. A test-driven experiment was then designed and conducted where a selected sample of visually impaired acted the role of user-based testers. Results suggest that that a number of factors affect the usability when visually impaired persons interact with the selected services user-interfaces. Important factors includes; type of platform the services is used on, degree of visual impairment, service updates, inaccessible design and the users previous experience with said service. The study has also identified that the usability of the investigated digital entertainment services for visually impaired people differs on different devices, where the Smartphone interfaces are more usable than the user interface of P.C. These results lead us to conclude that visually impaired cannot use the entertainment services independently and satisfactorily.

Técnicas de visualização de informações multidimensionais têm o potencial de auxiliar na análise visual e exploração de grandes conjuntos de dados, através do emprego de mecanismos que buscam tanto representar visualmente os dados quanto permitir ao usuário a interação com estas representações. Neste contexto, diversas técnicas têm sido desenvolvidas, muitas delas sem uma avaliação detalhada e aprofundada tanto de eficiência como de utilidade no suporte às necessidades dos usuários. Contudo, há relativamente pouco tempo começaram a ser publicados trabalhos abordando as diversas questões relacionadas à avaliação de usabilidade de sistemas ou das aplicações que implementam estas técnicas como forma de promover sua eficiente e efetiva utilização. A avaliação de usabilidade de interfaces de sistemas de visualização representa um desafio de pesquisa uma vez que elas apresentam significativas diferenças com relação a outros tipos de interface. Neste sentido, existe uma carência de sistematização (incluindo o uso de métodos e técnicas de avaliação de usabilidade) que explore e considere as características deste tipo de interface de maneira adequada. Esta tese investiga soluções viáveis para o desenvolvimento de uma abordagem sistemática para avaliação de usabilidade de técnicas de visualização de informações multidimensionais e apresenta as seguintes soluções ao problema em estudo: 1) determinação de uma taxonomia de tarefas específica relacionada ao uso de visualizações multidimensionais no processo de análise de dados e 2) adaptação de técnicas e métodos de avaliação de usabilidade, com o objetivo de torná-los mais efetivos ao contexto de sistemas de visualização de informações multidimensionais. / Multidimensional visualization techniques have the potential of supporting the visual analysis and exploration of large datasets, by means of providing visual representations and interaction techniques which allow users to interact with the data through their graphical representation. In this context, several techniques have been developed, most of them being reported without a broad and deep evaluation both regarding their efficiency and utility in supporting users tasks. Few years ago, thus quite recently, several works have been published reporting many issues related to the evaluation of visualization systems and applications, as a means of promoting their efficiency and effective use. In spite of these works, the usability evaluation of visualization systems’ graphical interfaces remains a challenge because of the significant differences between these interfaces and those of other systems. This way, there is a need of finding a systematic approach for such evaluations, including the definition of which usability methods and techniques are best suited for this kind of interfaces. This thesis reports our investigation of viable solutions for the development of a systematic approach for the usability evaluation of multidimensional information visualizations. We have conducted several case studies and experiments with users and have achieved the following contributions: 1) a taxonomy of visualization tasks, that is related to the use of interactive visualization techniques for the exploration and analysis of multidimensional datasets and 2) adaptation of usability evaluation techniques with the goal of making them more effective in the context of multidimensional information visualizations.

Técnicas de visualização de informações multidimensionais têm o potencial de auxiliar na análise visual e exploração de grandes conjuntos de dados, através do emprego de mecanismos que buscam tanto representar visualmente os dados quanto permitir ao usuário a interação com estas representações. Neste contexto, diversas técnicas têm sido desenvolvidas, muitas delas sem uma avaliação detalhada e aprofundada tanto de eficiência como de utilidade no suporte às necessidades dos usuários. Contudo, há relativamente pouco tempo começaram a ser publicados trabalhos abordando as diversas questões relacionadas à avaliação de usabilidade de sistemas ou das aplicações que implementam estas técnicas como forma de promover sua eficiente e efetiva utilização. A avaliação de usabilidade de interfaces de sistemas de visualização representa um desafio de pesquisa uma vez que elas apresentam significativas diferenças com relação a outros tipos de interface. Neste sentido, existe uma carência de sistematização (incluindo o uso de métodos e técnicas de avaliação de usabilidade) que explore e considere as características deste tipo de interface de maneira adequada. Esta tese investiga soluções viáveis para o desenvolvimento de uma abordagem sistemática para avaliação de usabilidade de técnicas de visualização de informações multidimensionais e apresenta as seguintes soluções ao problema em estudo: 1) determinação de uma taxonomia de tarefas específica relacionada ao uso de visualizações multidimensionais no processo de análise de dados e 2) adaptação de técnicas e métodos de avaliação de usabilidade, com o objetivo de torná-los mais efetivos ao contexto de sistemas de visualização de informações multidimensionais. / Multidimensional visualization techniques have the potential of supporting the visual analysis and exploration of large datasets, by means of providing visual representations and interaction techniques which allow users to interact with the data through their graphical representation. In this context, several techniques have been developed, most of them being reported without a broad and deep evaluation both regarding their efficiency and utility in supporting users tasks. Few years ago, thus quite recently, several works have been published reporting many issues related to the evaluation of visualization systems and applications, as a means of promoting their efficiency and effective use. In spite of these works, the usability evaluation of visualization systems’ graphical interfaces remains a challenge because of the significant differences between these interfaces and those of other systems. This way, there is a need of finding a systematic approach for such evaluations, including the definition of which usability methods and techniques are best suited for this kind of interfaces. This thesis reports our investigation of viable solutions for the development of a systematic approach for the usability evaluation of multidimensional information visualizations. We have conducted several case studies and experiments with users and have achieved the following contributions: 1) a taxonomy of visualization tasks, that is related to the use of interactive visualization techniques for the exploration and analysis of multidimensional datasets and 2) adaptation of usability evaluation techniques with the goal of making them more effective in the context of multidimensional information visualizations.

Do ponto de vista do usuário, a interface é uma das partes mais importantes dos sistemas computacionais, porque por meio dela o usuário vê, ouve e sente. Essa relevância motiva pesquisadores da área de Interação Humano-Computador a estudarem maneiras de se criarem interfaces com design focado em usabilidade. A avaliação da usabilidade de interfaces visa verificar se elas atendem aos requisitos do usuário de forma que as funcionalidades do sistema sejam realizadas de modo efetivo, eficiente e que satisfaça as expectativas do usuário. Tendo em vista que o ciclo de desenvolvimento de software costuma ser longo, avaliações da usabilidade de diferentes versões de interfaces devem ser realizadas no decorrer do processo, como forma de minimizar erros e reduzir custos de produção do sistema. Uma das avaliações de usabilidade mais conhecidas é a avaliação heurística, criada por Jacob Nielsen, que se destaca pelo baixo custo e rapidez de aplicação. Nela, especialistas avaliam as interfaces e os diálogos do sistema com base em um conjunto de regras gerais, as heurísticas, que lhes permitem identificar problemas de usabilidade. Apesar de respeitadas e amplamente usadas, as heurísticas de Nielsen foram criadas sem foco em interfaces de dispositivos móveis, muito difundidos atualmente. Por meio deste trabalho, verificou-se que as heurísticas de Nielsen têm limitações para encontrarem problemas de usabilidade em interfaces de dispositivos móveis. Por conta disso, propôs-se um conjunto de heurísticas para avaliação de interfaces de dispositivos móveis e se definiu um conjunto de diretrizes para o desenvolvimento dessas interfaces. A validação das heurísticas propostas indicou que elas foram mais efetivas que as de Nielsen para encontrarem problemas de usabilidade considerados pelos especialistas como catastróficos ou de baixa gravidade / From the users point of view, the interface is one the most important part of computer systems, because everything he sees, hears and feels are contained therein. This relevance motivates researchers of Human-Computer Interaction to study ways to create interfaces with design focused on usability. The usability evaluation of interfaces aims to determine whether the interfaces meet the requirements of the system so that its functionalities are carried out effectively, efficiently and satisfying the users expectations. Considering that the software development lifecycle is often long, usability evaluations of different versions of interfaces should be made during the process, in order to minimize errors and reduce production costs of the final system. Heuristic evaluation, created by Jacob Nielsen, is one of the most used usability evaluation methods, because of it low cost and ease of implementation. In this evaluation method, experts evaluate interfaces and systems dialogues based on a set of general rules, called heuristics, which enable them to identify usability problems. Although respected and widely used, Nielsens heuristics were not created having mobile devices interfaces in mind. Through this work, it was verified that Nielsens heuristics have limitations in finding usability problems in mobile devices interfaces. Because of this, we proposed a set of heuristics for evaluating interfaces for mobile devices and defined a set of guidelines for the development of these interfaces. The validation of the proposed heuristics indicated that they were more effective than Nielsens to find usability problems considered by experts as catastrophic or of low gravity

Técnicas de visualização de informações multidimensionais têm o potencial de auxiliar na análise visual e exploração de grandes conjuntos de dados, através do emprego de mecanismos que buscam tanto representar visualmente os dados quanto permitir ao usuário a interação com estas representações. Neste contexto, diversas técnicas têm sido desenvolvidas, muitas delas sem uma avaliação detalhada e aprofundada tanto de eficiência como de utilidade no suporte às necessidades dos usuários. Contudo, há relativamente pouco tempo começaram a ser publicados trabalhos abordando as diversas questões relacionadas à avaliação de usabilidade de sistemas ou das aplicações que implementam estas técnicas como forma de promover sua eficiente e efetiva utilização. A avaliação de usabilidade de interfaces de sistemas de visualização representa um desafio de pesquisa uma vez que elas apresentam significativas diferenças com relação a outros tipos de interface. Neste sentido, existe uma carência de sistematização (incluindo o uso de métodos e técnicas de avaliação de usabilidade) que explore e considere as características deste tipo de interface de maneira adequada. Esta tese investiga soluções viáveis para o desenvolvimento de uma abordagem sistemática para avaliação de usabilidade de técnicas de visualização de informações multidimensionais e apresenta as seguintes soluções ao problema em estudo: 1) determinação de uma taxonomia de tarefas específica relacionada ao uso de visualizações multidimensionais no processo de análise de dados e 2) adaptação de técnicas e métodos de avaliação de usabilidade, com o objetivo de torná-los mais efetivos ao contexto de sistemas de visualização de informações multidimensionais. / Multidimensional visualization techniques have the potential of supporting the visual analysis and exploration of large datasets, by means of providing visual representations and interaction techniques which allow users to interact with the data through their graphical representation. In this context, several techniques have been developed, most of them being reported without a broad and deep evaluation both regarding their efficiency and utility in supporting users tasks. Few years ago, thus quite recently, several works have been published reporting many issues related to the evaluation of visualization systems and applications, as a means of promoting their efficiency and effective use. In spite of these works, the usability evaluation of visualization systems’ graphical interfaces remains a challenge because of the significant differences between these interfaces and those of other systems. This way, there is a need of finding a systematic approach for such evaluations, including the definition of which usability methods and techniques are best suited for this kind of interfaces. This thesis reports our investigation of viable solutions for the development of a systematic approach for the usability evaluation of multidimensional information visualizations. We have conducted several case studies and experiments with users and have achieved the following contributions: 1) a taxonomy of visualization tasks, that is related to the use of interactive visualization techniques for the exploration and analysis of multidimensional datasets and 2) adaptation of usability evaluation techniques with the goal of making them more effective in the context of multidimensional information visualizations.

Made available in DSpace on 2015-04-11T14:02:43Z (GMT). No. of bitstreams: 1 bruno araujo.pdf: 1894932 bytes, checksum: 3283d30b868fd5576735ba6c2378d8ff (MD5) Previous issue date: 2012-03-05 / The increasing interest on mobile technologies and the evolutionary context in which mobile applications are developed have made the usability evaluation of these applications an important research area. However, usability evaluations are often avoided by developers or companies due to their lack of experience in the field. This thesis presents the UBICUA (Usability-Based Inspection CUstomizable Approach) technique, an inspection technique specifically proposed to assess the usability of hybrid mobile web applications (i.e., applications that rely on the Internet, such as widgets). Also, our approach is customizable by the inspector s knowledge, which results in a greater usability problem identification even by non-expert users. To support our UBICUA technique s creation process, this research has adopted an evidence-based methodology. Then, this thesis describes how UBICUA was created based on the outcome of a secondary study, two results feasibility studies and observation studies. Our ultimate goal is to increase the quality of hybrid mobile web applications and improve the user s interaction in this technology. We also present the guidelines and resources developed to support the execution of usability inspections of mobile applications in software development organizations. / O crescente interesse em tecnologias móveis e o contexto evolutivo no qual aplicações móveis são desenvolvidas têm tornado a avaliação de usabilidade destas aplicações um importante campo de pesquisa. No entanto, as avaliações de usabilidade são normalmente evitadas pelos desenvolvedores ou empresas, devido à falta de experiência na área. Esta dissertação apresenta a técnica UBICUA (Usability-Based Inspection CUstomizable Approach), específica para avaliação de usabilidade de aplicações Web móveis híbridas (i.e., aplicações locais que dependem da Internet). Esta nova abordagem é customizada pelo conhecimento do inspetor visando maior identificação de problemas de usabilidade, mesmo por inspetores com pouco conhecimento. Para a avaliação e evolução da UBICUA, esta pesquisa adotou uma metodologia baseada em evidências. Esta dissertação mostra como a UBICUA foi definida e aprimorada a partir dos resultados de diferentes estudos experimentais: mapeamento sistemático de literatura, estudos de viabilidade e de observação. O objetivo final é aumentar a qualidade das aplicações Web em dispositivos móveis e melhorar a interação dos usuários com estas tecnologias. Adicionalmente, são apresentadas diretrizes e recursos desenvolvidos para apoiar a realização de inspeções de usabilidade de aplicações deste porte.

Many everyday systems and products seem to be designed with little regard to usability. This leads to the frustration, wasted time and errors. So the usability of the product is important for its survival in the market. In many previous studies the usability evaluation of the iPhone and iPad carried out individually and very little work has been done on the comparative usability evaluation. However, there was not any study conducted on the comparative usability evaluation and measuring the performance of the iPhone versus iPad in a controlled environment. In this research work, the authors performed the comparative usability evaluation and measured the performances of the iPhone and iPad on the selected applications by considering the young users as well as the elderly users. Another objective of this study is to identify the usability issues in performances of the iPhone and iPad. A survey and experiment techniques were used to achieve the dened objectives. The survey questionnaire consisted of 42 statements that presented the different usability aspects. The objectives of the survey study were to validate the identified issues from the literature study, identify new issues and measure the signicant difference in user opinions for the iPhone and iPad. However, the experiment studies helped to measure the performance significances between the devices against the three user groups (novice user, experienced user, elderly user) and among the groups over the devices. Further, objective was to measure the satisfaction level of the participated users against the iPhone and iPad. The experiment was performed in a controlled environment. Total six tasks (two tasks per application) were dened and each participant performed the same task on both devices. Generally the authors found that the participants performed better on the iPad with lower error rates as compare to the iPhone. / The aim of this study was to evaluate and measure the comparative usability performances of the iPhone an iPad. The preliminary focus of the study was to nd the usability issues regarding both the devices. Several dierent methods have been used in the study when investigating the answers of predened research questions. The study in this thesis was a literature review, a survey study and an empirical usability testing experiment. In the literature review, the authors studied the dierent usability issues such as inconsistency in applications, applications crashes and accidental errors.The detail list of the issues also presented in Table 2. However, the survey responses validated such issues and highlighted some additional issues such as low battery time, Blue-tooth connectivity problems, wireless connectivity problem, week signal strength and missing help. Two participants commented on the missing of a swyping feature. According to them if the iPhone and iPad had such feature then their typing performance should be improved. A survey study was conducted to evaluate and measure the significance in the four main parts of the devices i.e. system, touch screen, keypad and applications. Each part contained the multiple related statements that explored the different usability aspects. The detail and results of each statement are given in Table 4. After the statistical analysis, the authors did not nd a signicant dierence between the statements regarding the iPhone and iPad apart from in four statements. In the two statements (i.e. nding a new application in the Apple store and replacing the contents location on the interface) the users agreed that the iPad performance was better than the iPhone. However, in the other two statements (i.e. use of system in the sun light and zooming gestures) they preferred the iPhone rather than the iPad. Its means 90.47% users addressed the same issues in the iPhone and iPad. There is no dierence in their preferences regarding the iPhone and iPad. 4.76% users preferred the iPhone and 4.46% users preferred the iPad in above mentioned conditions. The empirical usability testing experiment focused on studying the usability performances of the iPhone and iPad considering three target groups. The performances comparisons were conducted by comparing the dierent participants groups and both devices. In total 60 users participated in the empirical usability performance testing study. The selection of the participants was based on their earlier experience with mobile phones usage. The detail of the participant are given in Figure 13. The comparisons results of the participant groups are shown in Table 7, the devices in Table 8 and the errors on both devices in Table 9 provided the signicance in the performances. The novice users versus experienced users comparison results across the iPhone (all six tasks) and the iPad (rst ve tasks) presented that the experienced users performed faster than the novice users with lower error rate. The results of the novice users versus elderly user comparison presented that the novice user using the iPhone ( first four tasks) and using the iPad (facebook login, location close view, new note and Evernote logout) performed faster than the elderly users with lower error rate. Similarly the results in the last comparison of the experienced users versus elderly users shown that the experienced users performed all the six tasks faster than the elderly users with lower error rate. Based on such nding the authors can conclude that the experienced users performances were better than the other two groups on both devices. The authors can also conclude that if someone is using the iPhone he/she could easily use the iPad. In the devices comparison results, the performances of the iPad across the novice users (in tasks facebook login, send a message, location close view, new note Evernote logout), the experienced users (in tasks facebook login, send a message, location close view and new note) and the elderly users (st ve tasks) were better than the iPhone with lower error rate. Base on such ndings of the empirical usability testing, the authors conclude that in the controlled environment the performance of the iPad was better than the iPhone. Three participant groups performed each task faster on the iPad than the iPhone apart from in one task. The task named location identication the iPhone and iPad performed the same across the novice user and experienced user but across the elderly user, the iPad performed better than the iPhone. Table 10 presents the results of the satisfaction level of the participants in a control environment for both devices. The satisfaction level acquired through the post test questionnaire during the experiment. The results of the novice users and the experienced users presented that their satisfaction levels were higher for the iPad than the iPhone. The experienced users results shown that their satisfaction levels were same for the iPhone as well as for the iPad. However, with the keypads performances they looked more satisfied on the iPad than the iPhone. / Near Chungi number 1 Chitterpari Mirpur Azad Kashmir Pakistan.

The use of geographical data is increasing in real world applications and due to this, Geographic information systems (GIS) are a growing interest area for research nowadays. Today, GIS is combined with the World Wide Web (WWW) to provide information to a lot of people. Web-based GIS applications have gained popularity because of their easy use and simplicity. Through browsers, web-based GIS applications can display maps with features like buildings, forests, roads and even traffic. Furthermore spatial data can be analyzed and large amounts of data can be viewed on small screens by zooming and panning the map. So having all the above features, effective web-based GIS applications should be designed in a way that they should be easy to use and understand for users. Usability evaluation is becoming an important part of Interaction Design to find out the user´s needs and requirements. In this study two web-based GIS applications (Google Maps and MapQuest) are evaluated to find out usability problems. To accomplish the main goal of this study, different techniques are used. Special criteria are adopted for usability evaluation of these two web-based GIS applications. Usability tests have been performed with six graduate users and questionnaires were filled out by these users. Interviews were conducted with six users to validate the results. The authors have provided a number of suggestions based on the problems that were identified in this study for Google Maps and MapQuest to improve the usability of these applications.

In today’s world of rapid technological development one cannot deny the importance of collaborative writing systems. Besides many advantages of a collaborative writing system the major one is to allow its end users to work in collaboration with each other without having to physically meet. In the past various researches has been carried out for the usability evaluation of collaborative writing systems using the think aloud protocol method however there is no study conducted on the comparison of different usability evaluation methods in the context of collaborative writing systems. In this thesis work the authors have tried to find the limitations and capabilities of think aloud protocol and co-discovery learning methods in the context of a collaborative writing system called ZOHO, as well as the usability evaluation of ZOHO using think aloud protocol and co-discovery learning methods. The authors found various usability errors in ZOHO. Apart from this the authors also observed the two usability evaluation methods when they were used for usability evaluation of ZOHO. The authors found that both the methods have its’ own benefits and drawbacks. While the co-discovery learning method was fast enough, it was expensive in terms of human resource. On the other hand think aloud protocol method was slow to perform but there was less human resource used. Both the usability methods found almost the same usability errors. / In this thesis work the primary objective was to figure out the limitations and capabilities of think aloud protocol and co-discovery learning methods in the context of ZOHO; a collaborative writing system. Apart from this the secondary objective of this thesis was to conduct the usability evaluation of ZOHO and to find out what makes ZOHO ineffective, inefficient and unsatisfactory. The authors carried out usability tests on ZOHO using the think aloud protocol and co-discovery learning methods. After the tests results’ analysis the effectiveness, efficiency and satisfaction level of ZOHO was figured in section 7.2.1, 7.2.2 and 7.2.3 while the usability problems that make ZOHO ineffective, inefficient and unsatisfactory are discussed in section 7.2.4 of this thesis. Apart from the usability of ZOHO, the authors were also able to identify strong and weak points of the think aloud protocol and co-discovery learning methods when used for the usability evaluation of a collaborative writing system. They found that think aloud protocol testing is better if the evaluator is cost cautious or if he is looking for a detailed usability problems but does not cares about the time taken by the test. However if the evaluator cares about the test time and he cares less about the cost in terms of participants required for the test then he should use the co-discovery method for testing a collaborative writing system.

The basic purpose of e-learning applications is to deliver knowledge, share information and help learners in their learning activities in an effective and efficient way by involving advanced electronic technologies. Usability of e-learning applications is of great significance because their success depends upon basic usability principles. The criteria for judging the success can be defined by user satisfaction level after the user’s interaction with interface of e-learning system. In this research report we present the results of a usability evaluation of an e-learning system. Appropriate use of usability evaluation methods according to given scenarios is an important aspect of this report. Both end-users and usability experts participated in our study, during which we used different methods for usability evaluation of specific e-learning platform It’s Learning. The authors give recommendations for the improvement of It’s Learning after validating the results of methods used for usability evaluation. Moreover, the authors discuss the areas of e-learning with relation to usability where future could be more beneficial to learners by involving and adopting new technologies. / Det grundläggande syftet med e-learning-program är att förmedla kunskap, utbyta information och hjälpa eleverna i deras lärande på ett effektivt och ändamålsenligt sätt genom att involvera avancerad elektronisk teknik. Användbarhet av e-lärande som är av stor betydelse för att deras framgång beror på grundläggande användbarhet principer. De kriterier för bedömning av hur framgångsrik kan definieras genom användartillfredsställelse nivå efter användarens interaktion med gränssnittet för e-lärande system. I denna forskning rapport presenterar vi resultaten av en användbarhet utvärdering av ett e-learning system. Lämplig användning av användbarhet utvärderingsmetoder enligt fastställda scenarier är en viktig aspekt av denna rapport. Både slutanvändare och användbarhet experter deltog i vår studie, då vi använde olika metoder för användbarhet utvärdering av e-learning plattformen It's Learning. Författarna ge rekommendationer till förbättringar av It's Learning efter validera resultaten av metoder som används för användbarhet utvärdering. Dessutom har författarna diskutera områden av e-lärande med avseende på användbarhet där framtiden skulle kunna vara mer fördelaktigt för de studerande genom att engagera och införandet av ny teknik. / Kashif Manzoor Qureshi 0046-700511015, Muhammad Irfan 0046767142792