scholarly journals Student Academic Mark Clustering Analysis and Usability Scoring on Dashboard Development Using K-Means Algorithm and System Usability Scale

2021 ◽  
Vol 14 (2) ◽  
pp. 137-143
Author(s):  
Nur Laita Rizki Amalia ◽  
Ahmad Afif Supianto ◽  
Nanang Yudi Setiawan ◽  
Vicky Zilvan ◽  
Asri Rizki Yuliani ◽  
...  

Learning activities are one of the processes of delivering information or messages from teachers to students. SMPN 4 Sidoarjo is a State Junior High School (JHS) located in Sidoarjo Regency. During the learning process, the collected academic score data were still not well organized by teachers and school principals in monitoring student learning performance. The score data is from Bahasa Indonesia subject from a teacher with 222 data included at 2019/2020 school year. The method used in student clustering is K-Means. The number of clusters are determined using the elbow method and displayed in graphic form. Clustering result can be used as a reference for teachers in determining study groups and determining the best treatment for each cluster. The best clustering results are proven by validation score using Davies-Bouldin Index, Silhouette Width, and Calinski-Harabasz Index. Three clusters were obtained for each class level of data, while the cluster ranges from two to five for the data for each study group. The dashboard is used in order to visualize the clustering result. Usability testing using System Usability Scale (SUS) has a score value of 87.5, which means that the dashboard can be accepted by SMPN 4 Sidoarjo.

Author(s):  
Sri Sugiyarti ◽  
Muhammad Iqbal Arrosyad

The charitable endeavors of Muhammadiyah in the Bangka Belitung Region in the field of education from the levels of Elementary Schools, Junior High Schools, and High Schools and Vocational High Schools are spread to all districts/cities. However, the discussion about Muhammadiyah education in Bangka Belitung is very minimal. This research is a descriptive study with a qualitative approach. This study took the sample of the oldest and best senior high school as an illustration of Muhammadiyah education management in Bangka Belitung. The results showed that Muhammadiyah Education experienced various obstacles to the threat of closure, however, they were able to rise from adversity. Muhammadiyah Pangkalpinang High School as the oldest school departed from a school that boarded at Muhammadiyah Middle School and later became one of the most popular schools in the era of the 1990s to accommodate students up to 18 classes, but later it fell free and was almost closed due to the lack of students. Several times the change of school principals has not improved, a new hope is obtained when the management of this school is submitted to the STKIP Muhammadiyah Bangka Belitung to become its lab school. Now with new facilities and management, the number of students is increasing, slowly but surely this school is starting to improve itself. Meanwhile, Muhammadiyah Toboali High School, South Bangka Regency, which was established in 1994, almost lost public confidence, due to a large number of students who failed the National Examination for the 2006/2007 school year. The situation changed along with Supiandi's leadership, his persistence in managing the school, and finally, the trust in the community returned. Now the number of students has reached nearly 500 students


2020 ◽  
Vol 6 (1) ◽  
pp. 34-43
Author(s):  
Fitri Purwaningtias ◽  
Usman Ependi

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


BMJ Open ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. e050448
Author(s):  
Romaric Marcilly ◽  
Wu Yi Zheng ◽  
Regis Beuscart ◽  
Melissa T Baysari

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.


Author(s):  
Dahlia Alharoon ◽  
Douglas J. Gillan

Aesthetics and usability both play critical roles in product design. But how might measurement of these two conceptually-different features of products interfere with one another? The current research study examines the effect of differences in aesthetics on perceived usability. Participants completed three tasks on a simulated website with a low usability interface. One group of participants used an interface with high aesthetics, whereas a second group interacted with an interface with poor aesthetics. Both groups rated the usability and aesthetics of the interface after completing the tasks. The aesthetics manipulation was effective in that the high aesthetics group provided higher ratings on two aesthetics scales than did the low aesthetics group; however, differences in aesthetics had no significant effect on usability as measured by the System Usability Scale (SUS). These findings support the idea that users make independent judgments of usability and aesthetics.


Designs ◽  
2019 ◽  
Vol 3 (2) ◽  
pp. 23 ◽  
Author(s):  
Christos Panagopoulos ◽  
Andreas Menychtas ◽  
Panayiotis Tsanakas ◽  
Ilias Maglogiannis

As the world’s population is ageing, the field dealing with technology adoption by seniors has made headway in the scientific community. Recent technological advances have enabled the development of intelligent homecare systems that support seniors’ independent living and allow monitoring of their health status. However, despite the amount of research to understand the requirements of systems designed for the elderly, there are still unresolved usability issues that often prevent seniors from enjoying the benefits that modern ICT technologies may offer. This work presents a usability assessment of “HeartAround”, an integrated homecare solution incorporating communication functionalities, as well as health monitoring and emergency response features. An assessment with the system usability scale (SUS) method, along with in-depth interviews and qualitative analysis, has provided valuable insights for designing homecare systems for seniors, and validated some effective practical guidelines.


2021 ◽  
Vol 7 (1) ◽  
pp. 1-10
Author(s):  
Veni Manik ◽  
Clara Hetty Primasari ◽  
Yohanes Priadi Wibisono ◽  
Aloysius Bagas Pradipta Irianto

Perusahaan pembiayaan kendaraan mobil saat ini semakin banyak dan berkembang begitu pesat. Setiap perusahaan berusaha untuk menarik perhatian pelanggan dengan berbagai cara, terutama peningkatan teknologi untuk mendukung dan memudahkan proses kegiatan pembiayaan mobil. Perusahaan Astra Credit Company memanfaatkan teknologi dengan menyediakan aplikasi mobile acc.one yang dapat digunakan oleh pelanggan untuk membantu segala kegiatan proses pembiayaan mobil di Perusahaan ACC. Namun aplikasi ini terdapat beberapa masalah yang dapat diketahui dari ulasan pengguna di play store seperti aplikasi tiba-tiba error, aplikasi tidak dapat dibuka, fitur tidak berfungsi dengan semestinya, dll. Sehingga dilakukan pengujian aplikasi untuk mengetahui tingkat usability aplikasi dengan menggunakan metode system usability scale dan usability testing untuk mengetahui pengalaman pengguna. Hasil yang diperoleh tingkat usability aplikasi dengan tingkat kemudahan sebesar 73,33% yang masuk dalam kategori buruk, tingkat kecepatan pengguna sebesar 0,0467 goals/sec yang termasuk kategori normal, tingkat kesalahan pengguna sebesar 0,1230 total defect yang masuk dalam kategori kecil, dan tingkat kepuasan pengguna menggunakan kuesioner SUS memperoleh rerata SUS sebesar 54,45945946 yang artinya tingkat kepuasan pengguna rendah terhadap aplikasi berdasarkan penentuan nilai SUS yaitu Acceptability atau tingkat penerimaan penggunaan masuk dalam kategori marginal low, Grade Scale atau tingkat grade skala masuk dalam kategori F dan Adjective Rating masuk dalam kategori OK. Selain itu, pada SUS skor percentile rank masuk kedalam grade D.


2020 ◽  
Author(s):  
Yuhui Wang ◽  
Tian Lei ◽  
Xinxiong Liu

2018 ◽  
Author(s):  
Leming Zhou ◽  
Jie Bao ◽  
I Made Agus Setiawan ◽  
Andi Saptono ◽  
Bambang Parmanto

BACKGROUND After a mobile health (mHealth) app is created, an important step is to evaluate the usability of the app before it is released to the public. There are multiple ways of conducting a usability study, one of which is collecting target users’ feedback with a usability questionnaire. Different groups have used different questionnaires for mHealth app usability evaluation: The commonly used questionnaires are the System Usability Scale (SUS) and Post-Study System Usability Questionnaire (PSSUQ). However, the SUS and PSSUQ were not designed to evaluate the usability of mHealth apps. Self-written questionnaires are also commonly used for evaluation of mHealth app usability but they have not been validated. OBJECTIVE The goal of this project was to develop and validate a new mHealth app usability questionnaire. METHODS An mHealth app usability questionnaire (MAUQ) was designed by the research team based on a number of existing questionnaires used in previous mobile app usability studies, especially the well-validated questionnaires. MAUQ, SUS, and PSSUQ were then used to evaluate the usability of two mHealth apps: an interactive mHealth app and a standalone mHealth app. The reliability and validity of the new questionnaire were evaluated. The correlation coefficients among MAUQ, SUS, and PSSUQ were calculated. RESULTS In this study, 128 study participants provided responses to the questionnaire statements. Psychometric analysis indicated that the MAUQ has three subscales and their internal consistency reliability is high. The relevant subscales correlated well with the subscales of the PSSUQ. The overall scale also strongly correlated with the PSSUQ and SUS. Four versions of the MAUQ were created in relation to the type of app (interactive or standalone) and target user of the app (patient or provider). A website has been created to make it convenient for mHealth app developers to use this new questionnaire in order to assess the usability of their mHealth apps. CONCLUSIONS The newly created mHealth app usability questionnaire—MAUQ—has the reliability and validity required to assess mHealth app usability.


2020 ◽  
Vol 25 ◽  
pp. 1-6
Author(s):  
Lisandra Maria Konrad ◽  
Cezar Grontowski Ribeiro ◽  
Camila Tomicki ◽  
Tânia Rosane Bertoldo Benedetti

O objetivo do estudo foi validar o treinamento on-line para implementar o Programa Vida Ativa Melhorando a Saúde “VAMOS”, versão 3.0, na Atenção Primária à Saúde. Participaram 48 profissionais (especialistas = 22; profissionais da saúde = 26) que utilizaram o Suitability Assessment of Materials – SAM para avaliar a adequação do material e o System Usability Scale – SUS para a usabilidade do treinamento. As análises incluíram o Índice de Validade de Conteúdo (IVC ≥ 0,75) e Coeficiente Kappa (k = ≥ 0,61). A adequação do material (SAM = 92,92 ± 4,60; 95,59 ± 4,59) e a usabilidade (SUS = 96,14 ± 5,83; 97,40 ± 3,24) apresentaram escores gerais altos para os dois grupos de avaliadores. O IVC (> 0,80) e a consistência interna (k = 0,60 a 0,77) mostraram percentuais de concordância entre 70 e 84%. Assim, o treinamento on-line foi validado para capacitar profissionais da saúde para implementação do Programa VAMOS. 


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