scholarly journals Harmonize: a shared environment for extended immersive entertainment

2021 ◽  
Author(s):  
Damiano Oriti ◽  
Federico Manuri ◽  
Francesco De Pace ◽  
Andrea Sanna
Keyword(s):  
Visual Fields ◽  
Shared Environment ◽  
Immersive Environments ◽  
Technology Innovations ◽  
System Usability Scale ◽  
Head Mounted Displays ◽  
System Usability ◽  
Physical Presence ◽  
Similar Experience ◽  
Experience Questionnaire

AbstractVirtual reality (VR) and augmented reality (AR) applications are very diffuse nowadays. Moreover, recent technology innovations led to the diffusion of commercial head-mounted displays for immersive VR: users can enjoy entertainment activities that fill their visual fields, experiencing the sensation of physical presence in these virtual immersive environments. Even if AR and VR are mostly used separately, they can be effectively combined to provide a multi-user shared environment (SE), where two or more users perform some specific tasks in a cooperative or competitive way, providing a wider set of interactions and use cases compared to immersive VR alone. However, due to the differences between the two technologies, it is difficult to develop SEs offering a similar experience for both AR and VR users. This paper presents Harmonize, a novel framework to deploy applications based on SEs with a comparable experience for both AR and VR users. Moreover, the framework is hardware-independent, and it has been designed to be as much extendable to novel hardware as possible. An immersive game has been designed to test and to evaluate the validity of the proposed framework. The assessment of the system through the System Usability Scale questionnaire and the Game Experience Questionnaire shows a positive evaluation.

Pengembangan Front-End Website Perpustakaan Politeknik Negeri Jakarta dengan menggunakan Metode User Centered Design

2020 ◽  
Vol 6 (2) ◽  
pp. 89-95
Author(s):  
Cerah Ayunda Prawastiyo ◽  
Indra Hermawan
Keyword(s):  
User Interface ◽  
User Experience ◽  
Black Box ◽  
User Centered Design ◽  
Front End ◽  
System Usability Scale ◽  
System Usability ◽  
Experience Questionnaire ◽  
User Centered

Penggunaan internet di Indonesia khususnya di instansi pendidikan terutama perguruan tinggi yaitu mengandalkan internet untuk mencari kumpulan informasi dan referensi terkait dengan mata kuliah. Salah satu unit di sebuah perguruan tinggi yang menggunakan internet dengan memanfaatkan sistem informasi berbasis website adalah perpustakaan Politeknik Negeri Jakarta (PNJ). Website berperan penting untuk instansi sebagai acuan website yang baik salah satunya dapat dinilai dari sisi User Interface (UI) yang memiliki tampilan menarik dan User Experience (UX) untuk meningkatkan kenyamanan pengguna website. Dalam pengembangan front end website perpustakaan menggunakan metode User Centered Design (UCD), framework bootstrap, bahasa pemrograman HTML5, CSS dan Javascript. Pada tahap evaluasi design dalam bentuk wireframe menggunakan metode System Usability Scale (SUS) mendapatkan skor 83, pengujian black box untuk mengukur fungsionalitas website mendapatkan hasil sesuai dengan skenario, pengujian User Experience Questionnaire (UEQ) untuk mengukur tingkat kenyamanan pengguna website mendapatkan hasil positif.

Comparando métodos de avaliações de usabilidade, de encontrabilidade e de experiência do usuário

2018 ◽  
Vol 13 (2) ◽  
Author(s):  
Celio Andrade Santana ◽  
Rebeka Andrade Alcantra ◽  
Sandra Albuquerque Siebra ◽  
Bruno Tenório Ávila
Keyword(s):  
User Experience ◽  
System Usability Scale ◽  
System Usability ◽  
Level Method ◽  
Experience Questionnaire

Este artigo tem como objetivo identificar e comparar os aspectos considerados em métodos de avaliação de usabilidade, encontrabilidade e experiência do usuário em sistemas de informação. Para tanto, foram avaliados quatro tipos de testes, nos quais dois não consideravam as opiniões do usuário (Avaliação Heurística e a Avaliação de Encontrabilidade) e outros dois eram exclusivamente baseados nas impressões destes (Teste de Usabilidade - SUS e o Teste de Experiência do Usuário). Os métodos escolhidos foram: (i) avaliação heurística de Nielsen, (i) avaliação da encontrabilidade baseadas na análise da tarefa e Keystroke Level Method (KLM), (iii) avaliação de usabilidade SUS (System Usability Scale) e (iv) avaliação da experiência do usuário baseado no UEQ (User Experience Questionnaire). As avaliações foram realizadas em duas funcionalidades de um sistema de gestão acadêmico e para cada uma delas, foi analisado como sete aspectos eram avaliados: (i) interface, (ii) localização, (iii) efetividade, (iv) custo, (v) intuitividade, (vi) utilidade e (vii) experiência. Foi observado que cada método de avaliação, sozinho, observa um ou dois dos aspectos analisados e que a utilização conjunta dos métodos promove uma maior abrangência na avaliação dos aspectos escolhidos. Também foi observado que os métodos de avaliação são mais influenciados pelo seu propósito do que por quem fará a avaliação, reconhecendo que testes baseados nas respostas dos usuários são imprescindíveis para observar impressões qualitativas do usuário, tornando essa abordagem obrigatória em alguns testes.Palavras-chave: Usabilidade. Avaliação Heurística. Encontrabilidade. Experiência do Usuário.Link: http://www.periodicos.ufpb.br/ojs/index.php/itec/article/view/38411/20150

scholarly journals Usability testing to evaluate user experience on cyclers for automated peritoneal dialysis

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Thore Reitz ◽  
Stephanie Schwenke ◽  
Sebastian Hölzle ◽  
Adelheid Gauly
Keyword(s):  
Peritoneal Dialysis ◽  
User Experience ◽  
Ease Of Use ◽  
Usability Study ◽  
Automated Peritoneal Dialysis ◽  
Lay Persons ◽  
System Usability Scale ◽  
System Usability ◽  
Nasa Tlx ◽  
Experience Questionnaire

Abstract Background In the development of medical devices usability is an important aspect standing alongside performance and safety. Peritoneal dialysis (PD) can be provided by use of automated PD (APD), assisted by a cycler performing the solution exchanges. The present study has been executed to simulate training on APD cyclers to evaluate learnability and usability through established questionnaires. Methods Usability of two APD cyclers (sleep•safe harmony, Fresenius Medical Care, Bad Homburg, Germany and HomeChoice Pro, Baxter International Inc., Deerfield (IL), USA) were evaluated with the User Experience Questionnaire (UEQ), the NASA TLX Questionnaire, and the System Usability Scale (SUS), both after training and after experience sessions. Results Lay persons (n = 10) and health care personnel (HCPs, n = 11) participated in the study. The respondents consistently gave positive ratings in the UEQ after training and experience session. The ratings from the NASA TLX Questionnaire were mostly below 50 points indicating a low workload. Lay users and HCPs gave high ratings in the SUS evaluation both after the training and experience sessions confirming a good learnability and usability of the devices. Conclusions The usability study to assess learnability and use-related safety revealed consistent results with all applied instruments, which demonstrated good learnability and ease-of-use of the studied APD cyclers.

scholarly journals App-based Self-administrable Clinical Tests of Physical Function: Development and Usability Study (Preprint)

2019 ◽  
Author(s):  
Ronny Bergquist ◽  
Beatrix Vereijken ◽  
Sabato Mellone ◽  
Mattia Corzani ◽  
Jorunn L. Helbostad ◽  
...  
Keyword(s):  
Physical Function ◽  
The Self ◽  
Clinical Tests ◽  
Home Setting ◽  
The Third ◽  
Usability Problems ◽  
Home Based ◽  
System Usability Scale ◽  
System Usability ◽  
Experience Questionnaire

BACKGROUND Objective measures of physical function in older adults are widely used to predict health outcomes such as disability, institutionalization, and mortality. App-based clinical tests allow users to assess their own physical function and have objective tracking of changes over time by use of their smartphones. Such tests can potentially guide interventions remotely and provide more detailed prognostic information about the participant’s physical performance for the users, therapists, and other health care personnel. We developed 3 smartphone apps with instrumented versions of the Timed Up and Go (Self-TUG), tandem stance (Self-Tandem), and Five Times Sit-to-Stand (Self-STS) tests. OBJECTIVE This study aimed to test the usability of 3 smartphone app–based self-tests of physical function using an iterative design. METHODS The apps were tested in 3 iterations: the first (n=189) and second (n=134) in a lab setting and the third (n=20) in a separate home-based study. Participants were healthy adults between 60 and 80 years of age. Assessors observed while participants self-administered the tests without any guidance. Errors were recorded, and usability problems were defined. Problems were addressed in each subsequent iteration. Perceived usability in the home-based setting was assessed by use of the System Usability Scale, the User Experience Questionnaire, and semi-structured interviews. RESULTS In the first iteration, 7 usability problems were identified; 42 (42/189, 22.0%) and 127 (127/189, 67.2%) participants were able to correctly perform the Self-TUG and Self-Tandem, respectively. In the second iteration, errors caused by the problems identified in the first iteration were drastically reduced, and 108 (108/134, 83.1%) and 106 (106/134, 79.1%) of the participants correctly performed the Self-TUG and Self-Tandem, respectively. The first version of the Self-STS was also tested in this iteration, and 40 (40/134, 30.1%) of the participants performed it correctly. For the third usability test, the 7 usability problems initially identified were further improved. Testing the apps in a home setting gave rise to some new usability problems, and for Self-TUG and Self-STS, the rates of correctly performed trials were slightly reduced from the second version, while for Self-Tandem, the rate increased. The mean System Usability Scale score was 77.63 points (SD 16.1 points), and 80-95% of the participants reported the highest or second highest positive rating on all items in the User Experience Questionnaire. CONCLUSIONS The study results suggest that the apps have the potential to be used to self-test physical function in seniors in a nonsupervised home-based setting. The participants reported a high degree of ease of use. Evaluating the usability in a home setting allowed us to identify new usability problems that could affect the validity of the tests. These usability problems are not easily found in the lab setting, indicating that, if possible, app usability should be evaluated in both settings. Before being made available to end users, the apps require further improvements and validation.

scholarly journals Evaluation on Augmented-Reality-Based Interactive Book Using System Usability Scale and User Experience Questionnaire

2020 ◽  
Vol 4 (3) ◽  
pp. 482-488
Author(s):  
Dinan Yulianto ◽  
Rudy Hartanto ◽  
Paulus Insap Santosa
Keyword(s):  
Augmented Reality ◽  
User Experience ◽  
Evaluation Process ◽  
A Value ◽  
System Usability Scale ◽  
System Usability ◽  
Communication Devices ◽  
Technological Developments ◽  
Scale Category ◽  
Experience Questionnaire

Nowadays, the implementation of information and communication technology in education is important. In harmony with technological developments, the term mobile learning comes to represent learning that utilizes mobile communication devices. The implementation of augmented reality in education provides a new learning model in the form of a combination of technology-based conventional learning media. This research aimed to evaluate augmented reality-based books as media for learning Cirebon mask dance. As many as 15 respondents were involved in the evaluation process, including testing the usability using the System Usability Scale (SUS) and User Experience Questionnaire (UEQ). The evaluation using SUS found a value of 77.67, meaning that the Acceptability Ranges category was “Acceptable”; the Grade Scale category was “C”; and the Adjective Rating category was “Excellent”, while that using UEQ found that each category, namely Attractiveness, Perspicuity, Efficiency, Dependability, Stimulation, Dependability, and Novelty got a value greater than the impression value (0.8), namely 2.122; 2.117; 1.983; 1.750; 1.950 and 1,867, respectively. Overall, all of the evaluation results show that augmented reality-based books are acceptable to be used as media for learning Cirebon mask dance.

scholarly journals App-based Self-administrable Clinical Tests of Physical Function: Development and Usability Study

10.2196/16507 ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. e16507 ◽  
Author(s):  
Ronny Bergquist ◽  
Beatrix Vereijken ◽  
Sabato Mellone ◽  
Mattia Corzani ◽  
Jorunn L Helbostad ◽  
...  
Keyword(s):  
Physical Function ◽  
The Self ◽  
Clinical Tests ◽  
Home Setting ◽  
The Third ◽  
Usability Problems ◽  
Home Based ◽  
System Usability Scale ◽  
System Usability ◽  
Experience Questionnaire

Background Objective measures of physical function in older adults are widely used to predict health outcomes such as disability, institutionalization, and mortality. App-based clinical tests allow users to assess their own physical function and have objective tracking of changes over time by use of their smartphones. Such tests can potentially guide interventions remotely and provide more detailed prognostic information about the participant’s physical performance for the users, therapists, and other health care personnel. We developed 3 smartphone apps with instrumented versions of the Timed Up and Go (Self-TUG), tandem stance (Self-Tandem), and Five Times Sit-to-Stand (Self-STS) tests. Objective This study aimed to test the usability of 3 smartphone app–based self-tests of physical function using an iterative design. Methods The apps were tested in 3 iterations: the first (n=189) and second (n=134) in a lab setting and the third (n=20) in a separate home-based study. Participants were healthy adults between 60 and 80 years of age. Assessors observed while participants self-administered the tests without any guidance. Errors were recorded, and usability problems were defined. Problems were addressed in each subsequent iteration. Perceived usability in the home-based setting was assessed by use of the System Usability Scale, the User Experience Questionnaire, and semi-structured interviews. Results In the first iteration, 7 usability problems were identified; 42 (42/189, 22.0%) and 127 (127/189, 67.2%) participants were able to correctly perform the Self-TUG and Self-Tandem, respectively. In the second iteration, errors caused by the problems identified in the first iteration were drastically reduced, and 108 (108/134, 83.1%) and 106 (106/134, 79.1%) of the participants correctly performed the Self-TUG and Self-Tandem, respectively. The first version of the Self-STS was also tested in this iteration, and 40 (40/134, 30.1%) of the participants performed it correctly. For the third usability test, the 7 usability problems initially identified were further improved. Testing the apps in a home setting gave rise to some new usability problems, and for Self-TUG and Self-STS, the rates of correctly performed trials were slightly reduced from the second version, while for Self-Tandem, the rate increased. The mean System Usability Scale score was 77.63 points (SD 16.1 points), and 80-95% of the participants reported the highest or second highest positive rating on all items in the User Experience Questionnaire. Conclusions The study results suggest that the apps have the potential to be used to self-test physical function in seniors in a nonsupervised home-based setting. The participants reported a high degree of ease of use. Evaluating the usability in a home setting allowed us to identify new usability problems that could affect the validity of the tests. These usability problems are not easily found in the lab setting, indicating that, if possible, app usability should be evaluated in both settings. Before being made available to end users, the apps require further improvements and validation.

Pengujian Usability Website Pondok Pesantren Qodratullah Menggunakan System Usability Scale

2020 ◽  
Vol 6 (1) ◽  
pp. 34-43
Author(s):  
Fitri Purwaningtias ◽  
Usman Ependi
Keyword(s):  
Evaluation Process ◽  
Boarding School ◽  
Educational Institutions ◽  
Prospective Students ◽  
A Value ◽  
System Usability Scale ◽  
System Usability ◽  
Grade Scale ◽  
Final Score ◽  
Group B

Website saat ini telah digunakan diberbagai jenis instansi termasuk instansi pendidikan seperti Pondok Pesantren Qodratullah. Saat ini website Pondok Pesantren Qodratullah menjadi tulang punggung dalam penyebaran informasi terkain pondok pesantren kepada wali santri, alumni, calon santri dan masyarakat luas. Mengingat pentingnya website bagi Pondok Pesantren Qodratullah maka perlu untuk dilakukan evaluasi apakah informasi yang diberikan dan website yang ada telah memiliki nilai kebergunaan bagi pengguna atau tidak. Untuk itu di dalam penelitian ini dilakukan evaluasi untuk melihat perspektif pengguna terhadap website. Prose evaluasi dilakukan dengan system usability scale dengan sepuluh instrumen sebagai pernyataan evaluasi. Hasil evaluasi menunjukkan bahwa website Pondok Pesantren Qodratullah mendapatkan nilai akhir 88. Nilai 88 berarti website Pondok Pesantren Qodratullah mendapatkan adjective rating yang excellence, grade scale tergolong kelompok B dan tingkat acceptability termasuk acceptable. The website is currently used in various types of institutions including educational institutions such as Qodratullah Islamic Boarding School. Currently the Qodratullah Islamic Boarding School website is the backbone in the dissemination of information about Islamic boarding schools to the guardians of students, alumni, prospective students and the wider community. Considering the importance of the website for the Qodratullah Islamic Boarding School, it is necessary to evaluate whether the information provided, and the existing website have a useful value for the user or not. For this reason, in this study an evaluation was conducted to see the user's perspective on the website. The evaluation process is carried out with a system usability scale with ten instruments as evaluation statements. Evaluation results show that the Qodratullah Islamic Boarding School website gets a final score of 88. A value of 88 means that the Qodratullah Islamic Boarding School website gets an adjective rating that excellence, grade scale belongs to group B and the level of acceptability is acceptable

scholarly journals Comparison of the validity, perceived usefulness and usability of I-MeDeSA and TEMAS, two tools to evaluate alert system usability: a study protocol

BMJ Open ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. e050448
Author(s):  
Romaric Marcilly ◽  
Wu Yi Zheng ◽  
Regis Beuscart ◽  
Melissa T Baysari
Keyword(s):  
Human Factors ◽  
Convergent Validity ◽  
Perceived Usefulness ◽  
Decision Makers ◽  
Free Text ◽  
Alert System ◽  
System Usability Scale ◽  
System Usability ◽  
Ethical Approval ◽  
Alerting Systems

IntroductionResearch has shown that improvements to the usability of medication alert systems are needed. For designers and decisions-makers to assess usability of their alert systems, two paper-based tools are currently available: the instrument for evaluating human-factors principles in medication-related decision support alerts (I-MeDeSA) and the tool for evaluating medication alerting systems (TEMAS). This study aims to compare the validity, usability and usefulness of both tools to identify their strengths and limitations and assist designers and decision-makers in making an informed decision about which tool is most suitable for assessing their current or prospective system.Methods and analysisFirst, TEMAS and I-MeDeSA will be translated into French. This translation will be validated by three experts in human factors. Then, in 12 French hospitals with a medication alert system in place, staff with expertise in the system will evaluate their alert system using the two tools successively. After the use of each tool, participants will be asked to fill in the System Usability Scale (SUS) and complete a survey on the understandability and perceived usefulness of each tool. Following the completion of both assessments, participants will be asked to nominate their preferred tool and relay their opinions on the tools. The design philosophy of TEMAS and I-MeDeSA differs on the calculation of a score, impacting the way the comparison between the tools can be performed. Convergent validity will be evaluated by matching the items of the two tools with respect to the usability dimensions they assess. SUS scores and answers to the survey will be statistically compared for I-MeDeSA and TEMAS to identify differences. Free-text responses in surveys will be analysed using an inductive approach.Ethics and disseminationEthical approval is not required in France for a study of this nature. The results will be published in a peer-reviewed journal.

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