Design Issues of the Existing Radiotherapy Segmentation Software

2016 ◽  
Vol 5 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Anjana Ramkumar ◽  
Yu Song ◽  
Wiro J. Niessen ◽  
Pieter Jan Stappers
Keyword(s):  
Interface Design ◽  
Evaluation Method ◽  
Evaluation Methods ◽  
Think Aloud ◽  
Heuristic Evaluation ◽  
Human Computer Interactions ◽  
Design Issues ◽  
Future Studies ◽  
Nasa Tlx ◽  
Almost All

Findings from previous literatures, ethnography studies and interviews showed that radiotherapy contouring interfaces are very complex, requiring many human-computer interactions (HCI). In this paper we used observational, heuristic evaluation, think aloud and NASA-TLX methods to 1) analyse the workflow of radiotherapy segmentation systems; 2) discover possible usability and HCI design issues of current segmentation systems in order to identify the requirements for future interface design; and 3) explore the abilities and limitations of various evaluation methods. From the results it can be seen that observational and think aloud methods were very useful in identifying the workflow of different systems. The heuristic evaluation method uncovered more general usability issues with the interface design. The think aloud method identified more HCI issues compared to general usability issues. From the NASA-TLX, it can be seen that the workload level of system C is higher in almost all the categories. Using the four different methods this study identified several usability and HCI issues and have proposed seven main requirements which might be considered in our future studies.

scholarly journals Evaluation of User Experience Information Systems Using Heuristic Evaluation (Case Study of STMIK Amik Riau Student Portal)

2021 ◽  
Vol 4 (2) ◽  
pp. 180-188
Author(s):  
Heru Satria Surya ◽  
Benino Giordiola Millenio ◽  
Junadhi Junadhi ◽  
Silvyana Dwi Putri
Keyword(s):  
Information System ◽  
User Satisfaction ◽  
Interface Design ◽  
Evaluation Method ◽  
Heuristic Evaluation ◽  
Web Portal ◽  
Corporate Websites ◽  
Other Information ◽  
Academic Information ◽  
Almost All

The academic information system is an important system to supports lecture activities. Is used by almost all elements in the university, both students, lecturers, staff and leaders. This research uses Heuristic Evaluation as an inference method to assess the components of learnability, efficiency, memorability, errors, and satisfaction. for various cases, such as designing academic and corporate websites with reference to these problems, it is necessary to evaluate the usability of STMIK Amik Riau information system. STMIK Amik Riau implements an integrated information system to support fast and real-time information management processes of STMIK Amik Riau information system includes various services such as E-KRS, E-KTM, E-EDOM, and other information. The aim is to identify problems related to the usability of the website. The data collection method in this research was carried out using questionnaire, containing a list of questions distributed via google form to respondents, its about 100 students of STMIK Amik Riau. Based on the analysis conducted using the Heuristic Evaluation method, the evaluation results of STMIK Amik Riau web portal have met the usability criteria with an average of 78.71915% where P > 60% and provides user satisfaction in accessing STMIK Amik Riau web portal. STMIK Amik Riau's web interface design is quite good. These results are based on the results of Likert scale score which states that the respondents agree.

scholarly journals EVALUASI DESAIN ANTARMUKA APLIKASI BPJSTKU MENGGUNAKAN HEURISTIC EVALUATION

BUANA ILMU ◽  
2021 ◽  
Vol 6 (1) ◽  
pp. 82-97
Author(s):  
Rini Malfiany ◽  
Donny Apdian ◽  
Shofa Shofiah Hilabi
Keyword(s):  
Old Age ◽  
User Satisfaction ◽  
Interface Design ◽  
Mobile Application ◽  
Quantitative Methods ◽  
Evaluation Method ◽  
Heuristic Evaluation ◽  
Average Value ◽  
Old Age Security ◽  
Usability Problems

BPJS Ketenagakerjaan adalah program jaminan sosial yang memberikan fasilitas layanan kepesertaan bagi tenaga kerja ataupun perusahaan (pemberi kerja). Salah satu program BPJS Ketenagakerjaan yang wajib diikuti ialah program Jaminan Hari Tua (JHT). Untuk mengetahui berapa saldo yang kita dapatkan setiap tahunnya, kita bisa mengetahui nya melalui sebuah aplikasi mobile untuk jaminan Hari Tua (JHT) yaitu aplikasi BPJSTKU. Aplikasi BPJSTKu merupakan aplikasi mobile untuk memberikan pelayanan bagi peserta yang dikhususkan pada tenaga kerja untuk mendapatkan informasi mengenai Saldo Jaminan Hari Tua (JHT) beserta rincian dari Saldo Jaminan Hari Tua (JHT) tahunan. Selain itu aplikasi tersebut menyediakan informasi mengenai data perserta BPJSTKU, simulasi Saldo Jaminan Hari Tua (JHT) juga menyediakan Formulir pengajuan Klaim pengambilan JHT secara online. Tujuan dibuatnya penelitian ini untuk mengetahui kepuasan atau kekecewaan dari pengguna aplikasi BPJSTKU ini, karena kepuasan pengguna itu merupakan salah satu faktor untuk menentukan tingkat usability sebuah aplikasi. Untuk menemukan masalah usability pada desain aplikasi BPJSTKU, penelitian ini dibuat dengan menggunakan metode evaluasi Heuristic. Jenis penelitian menggunakan metode kuantitatif karena mengukur kepuasan pengguna dengan Tingkat severity ratings pada masalah usability yang ditentukan dengan skala 0 sampai 4. Lokasi penelitian dilakukan di Karawang dengan sampel staf STMIK Rosma yang menggunakan Aplikasi BPJSTKU. Dari hasil pengukuran evaluasi heuristic menunjukkan kategori minor usability problem, perbaikan masalah ini diberikan prioritas yang rendah dengan nilai rata-rata 1.88 atau skala 2. Kata Kunci : Evaluasi Heuristic, Desain Antarmuka, BPJSTKU BPJS Employment is a social security program that provides membership service facilities for workers or companies (employers). One of the BPJS Employment programs that must be followed is the Old Age Security (JHT) program. To find out how much balance we get each year, we can find out through a mobile application for Old Age Security (JHT), namely the BPJSTKU application. The BPJSTKu application is a mobile application to provide services for participants devoted to the workforce to obtain information about the Old Age Security Balance (JHT) along with details of the annual Old Age Security Balance (JHT). In addition, the application provides information on BPJSTKU participant data, Simulation of Old Age Security Balance (JHT) also provides an online claim form for taking JHT. The purpose of this research is to find out the satisfaction or disappointment of the users of this BPJSTKU application, because user satisfaction is one of the factors to determine the usability level of an application. To find usability problems in the BPJSTKU application design, this study was made using the Heuristic evaluation method. This type of research uses quantitative methods because it measures user satisfaction with severity ratings on usability problems which are determined on a scale of 0 to 4. The research location was conducted in Karawang with a sample of STMIK Rosma staff who used the BPJSTKU application. From the results of the heuristic evaluation measurement, it shows the category of minor usability problems, repairing this problem is given a low priority with an average value of 1.88 or a scale of 2. Keywords: Heuristic Evaluation, Interface Design, BPJSTKU

scholarly journals ANALISIS USER INTERFACE TERHADAP WEBSITE AKTA ONLINE BANYUWANGI MENGGUNAKAN METODE HEURISTIC EVALUATION

2020 ◽  
Vol 4 (3) ◽  
pp. 103
Author(s):  
Siti Vika Ngainul Fitri ◽  
Oktalia Juwita ◽  
Tio Dharmawan
Keyword(s):  
Information Technology ◽  
User Interface ◽  
Interface Design ◽  
User Interface Design ◽  
Evaluation Methods ◽  
Usability Evaluation ◽  
Heuristic Evaluation ◽  
Interface Formation ◽  
Usability Evaluation Methods ◽  
Interface Designs

Banyuwangi Regency has a new innovation called " Lahir Procot Pulang Bawa Akta " which in this innovation is realized in the form of an Online Deed Website. Every information technology has an interface that can be a link between the user and the technology itself. Interface formation is influenced by needs, and information technology has different interface designs according to the needs of its users. The User Interface has the aim of making it easier for users to operate information technology that can make users feel comfortable using the application or technology. Heuristic Evaluation is one of the Usability evaluation methods that can be used to determine the extent to which a system is used by users to achieve certain goals with effectiveness, efficiency and satisfaction. This research is a research that is focused on the use of Heuristic Evaluation based on user interface design aspects of application usability through observation, interviews and questionnaires to users.

scholarly journals Evaluasi Desain Antarmuka Portal Akademik Menggunakan Metode Heuristic Evaluation

2019 ◽  
Vol 3 (4) ◽  
pp. 391
Author(s):  
Murdiaty Murdiaty ◽  
Angela Angela ◽  
Chatrine Sylvia
Keyword(s):  
Interface Design ◽  
Evaluation Method ◽  
Ease Of Use ◽  
Portal System ◽  
Heuristic Evaluation ◽  
Academic Administration ◽  
Machine System ◽  
Final Project ◽  
Usability Problems ◽  
Computer Interaction

Evaluation of interface design is part of human and computer interaction (HCI-Human Computer Interaction). The focus of this study is to conduct heuristic evaluations on the interface design of an academic portal to determine the extent to which the academic portal meets the concept of usability. Academic portal is a website accessed by academics through a web browser. This portal can be accessed by students, lecturers, academic supervisors, Final Project supervisors, and other academics such as: Academic Administration Section (BAA), Study Programs, Libraries, Student Affairs, and Public Administration and Personnel Section (BAUK). This study uses heuristic evaluation as an approach in evaluating a human-machine system (man-machine system) in relation to academic portal ease of use (usability) and also severity ratings in addition to heuristic checklist.  This study involved several evaluators who would conduct an assessment by filling in the heuristic checklist. The expected results with the evaluator's heuristic evaluation method found usability problems related to the general interface. These results are expected to be used by Mikroskil's academic portal system developers to make improvements to the academic portal currently in use

Comparison of Heuristic Evaluation and Think Aloud Methods

2014 ◽  
Vol 3 (1) ◽  
pp. 230-237
Author(s):  
Anjana Ramkumar ◽  
Yu Song ◽  
Edit Varga ◽  
Wiro J. Niessen ◽  
Anne Laprie ◽  
...  
Keyword(s):  
Evaluation Method ◽  
Planning Process ◽  
Target Volume ◽  
Radiotherapy Planning ◽  
Think Aloud ◽  
Heuristic Evaluation ◽  
Normal Tissues ◽  
Software Interface ◽  
Volume Delineation ◽  
Tumour Delineation

During the radiotherapy planning process patient’s medical images are used to determine the optimum configuration of radiation beams for their cancer treatment. The primary aim of radiotherapy planning is to maximize radiation dose to the patient’s tumour while sparing their normal tissues. To achieve this, the boundary of the tumour needs to be accurately identified in the treatment planning process, especially in the step of target volume delineation. Clinically, tumour delineation is performed by physicians, either manually or using semi-automatic/automatic software based on the patient’s CT, PET and/or MRI images. In addition to the expertise of the physician and choices of segmentation algorithms, the usability of the software also plays an important role in the tumour delineation process. In this paper, the usability of the IPLAN® contouring software was evaluated. First, two evaluators assessed the software according to the heuristic evaluation method. Then three physicians evaluated the same system using the think aloud method. The outcomes of the experiments revealed different insights of the system. With the think aloud method, it was easier to identify end users’ preferences regarding both software interface and hardware input tools. On the other hand, the heuristic evaluation method uncovered more specific issues with the interface. Besides, this method was able to explore more details regarding individual functionalities on the interface. Based on the comparison of the outcomes of both methods, it is suggested that in the process of improving usability of the contouring interface, the think aloud method can be applied to explore preferences of the user. The heuristic evaluation can be applied in designing the details of the interface.

scholarly journals Interface Design Heuristic Evaluation Website Yayasan Kesehatan Telkom

2021 ◽  
Vol 12 (4) ◽  
pp. 852-859
Author(s):  
Alfira Febriyanthi, Et. al.
Keyword(s):  
Real World ◽  
Standard Error ◽  
Interface Design ◽  
Evaluation Method ◽  
Heuristic Evaluation ◽  
Web Page ◽  
Error Prevention ◽  
The Public ◽  
Independent Variables ◽  
Design Heuristic

The webpage portal is a means of information for companies to introduce company profiles, job vacancies, and their products to the public or its users. Heuristic evaluation (Nielsen 1990) is a method that researchers use to test the usability of a web page portal application. The Heuristic Evaluation Method uses ten Nielsen principles, namely Visibility of system status, match with the real world, user control and freedom, consistency and standard, error prevention, recognition than recall, flexibility and efficiency of use, aesthetic and minimalist design, help user recognize, diagnose, and recover from errors, and Help and documentation. The results of the analysis show that there are only 5 variables that have a significance of less than 0.05. Of the independent variables,

scholarly journals A study exploring the usability of an exergaming platform for senior fitness testing

2019 ◽  
Vol 26 (2) ◽  
pp. 963-980
Author(s):  
Tsai-Hsuan Tsai ◽  
Kevin C Tseng ◽  
Alice MK Wong ◽  
Hsien-Jui Chang
Keyword(s):  
User Interface ◽  
Empirical Study ◽  
Physical Fitness ◽  
Strong Correlation ◽  
Interface Design ◽  
Evaluation Method ◽  
Two Dimensions ◽  
Fitness Testing ◽  
Heuristic Evaluation ◽  
The Relationship

This study proposes a structural usability model to identify the relationship between the user interface design and the usability of an exergame system that includes a software system and a separate hardware device. The model consisted of two dimensions: the interface design, which was evaluated using Nielsen’s heuristic evaluation method, and the usability, as defined by ISO 9241-11. An empirical study used the iFit exergame system to test the physical fitness of 101 seniors in order to evaluate the model’s validity. The results showed a strong correlation between the interface design and the usability of the exergame system. An improved interface enabled users to interact with the system better, and the usability of the whole system was enhanced, including the device and the system itself. The results show that the proposed usability model can be used to evaluate other exergame systems.

scholarly journals Comparison Usability Evaluation Methods in a Health Information System: Heuristic Evaluation versus Cognitive Walkthrough Method

2021 ◽  
Author(s):  
Mehrdad Farzandipour ◽  
Ehsan Nabovati ◽  
Hamidreza Tadayon ◽  
Monireh Sadeqi Jabali
Keyword(s):  
Information System ◽  
Evaluation Method ◽  
Health Information System ◽  
Evaluation Methods ◽  
Usability Evaluation ◽  
Heuristic Evaluation ◽  
Usability Problems ◽  
Significant Difference ◽  
Cognitive Walkthrough ◽  
Usability Evaluation Methods

Abstract Background There are some inconsistencies regarding the selection of the most appropriate usability evaluation method. The present study aimed to compare two expert-based evaluation methods in a nursing module, as the most widely used module of a Hospital Information System (HIS). Methods The Heuristic Evaluation (HE) and Cognitive Walkthrough (CW) methods were used by five independent evaluators to evaluate the nursing module of Shafa HIS. In this regard, the number, severity and ratio of the recognized problems according to the usability attributes were compared using two evaluation methods. Results The use of the HE and CW evaluation methods resulted in the identification of 104 and 24 unique problems, respectively. The average severity of the recognized problems was 2.32 in the HE method and 2.77 in the CW evaluation method; however, there was a significant difference between the number and severity of recognized usability problems by these methods (P < 0.001). Some problems, which were associated with effectiveness, satisfaction and error, were better recognized by the HE method; however, CW evaluation method was more successful in recognizing problems of learnability, efficiency and memorability. Conclusion The HE method recognized more problems with a lower average severity. On the other hand, CW could recognize fewer problems with a higher average severity. Regarding the evaluation goal, HE method would be used to improve effectiveness, increase satisfaction and decrease the number of errors. Furthermore, CW evaluation method is recommended to be used to improve the learnability, efficiency and memorability of the system.

scholarly journals Building an Emotionally Responsive Avatar with Dynamic Facial Expressions in Human—Computer Interactions

2021 ◽  
Vol 5 (3) ◽  
pp. 13
Author(s):  
Heting Wang ◽  
Vidya Gaddy ◽  
James Ross Beveridge ◽  
Francisco R. Ortega
Keyword(s):  
Facial Expressions ◽  
Descriptive Analysis ◽  
Uncanny Valley ◽  
Human Computer Interactions ◽  
Basic Emotions ◽  
Subjective Responses ◽  
Dynamic Facial Expressions ◽  
Nasa Tlx ◽  
Computer Interactions

The role of affect has been long studied in human–computer interactions. Unlike previous studies that focused on seven basic emotions, an avatar named Diana was introduced who expresses a higher level of emotional intelligence. To adapt to the users various affects during interaction, Diana simulates emotions with dynamic facial expressions. When two people collaborated to build blocks, their affects were recognized and labeled using the Affdex SDK and a descriptive analysis was provided. When participants turned to collaborate with Diana, their subjective responses were collected and the length of completion was recorded. Three modes of Diana were involved: a flat-faced Diana, a Diana that used mimicry facial expressions, and a Diana that used emotionally responsive facial expressions. Twenty-one responses were collected through a five-point Likert scale questionnaire and the NASA TLX. Results from questionnaires were not statistically different. However, the emotionally responsive Diana obtained more positive responses, and people spent the longest time with the mimicry Diana. In post-study comments, most participants perceived facial expressions on Diana’s face as natural, four mentioned uncomfortable feelings caused by the Uncanny Valley effect.

Sign in / Sign up

Export Citation Format

Share Document