scholarly journals Usability Evaluation of Newspaper-on- DVD (NP-DVD) of the Rizal Library, Ateneo de Manila University

2021 ◽  
pp. 366-383
Author(s):  
Engracia Santos
Keyword(s):  
Research Method ◽  
Digital Images ◽  
Usability Testing ◽  
Usability Evaluation ◽  
Primary Objective ◽  
The Internet ◽  
Library Search ◽  
Usability Problems ◽  
Search Tool ◽  
Evaluative Research

The primary objective of this study is to determine the usability of the Newspaper-on- DVD project of the Rizal Library, Ateneo de Manila University and to make recommendations that will help improve the system and expand its usage. In 2000, Library started transforming the preserved newspaper from microfilm to digital images. The library then provided an easier mode of access by providing a search tool that will link the index to the images and to the printers. A descriptive evaluative research method through usability testing was used in this study. Ten representative students were asked to complete a series of tasks using NP-DVD. Based on the test, the researcher was able to identify usability problems and recommended futures actions to enhance the system. These problems characterize the difficulties users face while using library search tools available not only in the libraries but also in the internet.

Remote Usability Evaluation of Web Interfaces

2007 ◽  
pp. 273-289 ◽  
Author(s):  
Naouel Moha ◽  
Ashraf Gaffar ◽  
Gabriel Michel
Keyword(s):  
Usability Testing ◽  
Usability Evaluation ◽  
The Internet ◽  
Web Interfaces ◽  
Usability Problems ◽  
The World ◽  
Remote Usability Testing ◽  
Usability Criteria ◽  
Testing And Evaluation

Usability testing is a process that employs a sample of future users to evaluate software according to specific usability criteria. With the unprecedented growth and reach of the Internet, it is hard to reach representative users of Websites across the world. The new branch of remote usability testing has emerged as an alternative. While it is prohibitively expensive to conduct usability testing on a global range of users, it is technically possible and is more feasible to remotely collect the necessary information about usability problems and to analyze them the same way we do local tests. In this chapter, we present systematic methods and tools to support remote usability testing and evaluation of Web interfaces.

Integrating Semiotics Perception in Usability Testing to Improve Usability Evaluation

2013 ◽  
pp. 145-169 ◽  
Author(s):  
Muhammad Nazrul Islam ◽  
Franck Tétard
Keyword(s):  
User Interfaces ◽  
Usability Testing ◽  
End Users ◽  
Usability Evaluation ◽  
Computer Applications ◽  
Computer Application ◽  
Semiotic Analysis ◽  
Usability Problems ◽  
Intuitive Interface ◽  
Methodological Guidelines

User interfaces of computer applications encompass a number of objects such as navigation links, buttons, icons, and thumbnails. In this chapter, these are called interface signs. The content and functions of a computer application are generally directed by interface signs to provide the system’s logic to the end users. The interface signs of a usable application need to be intuitive to end users and therefore a necessary part of usability evaluation. Assessing sign intuitiveness can be achieved through a semiotic analysis. This study demonstrates how a semiotic assessment of interface signs’ intuitiveness yielded a number of benefits. For instance, (i) it provides an overall idea of interface signs’ intuitiveness to the end users to interpret the meaning of interface signs, (ii) it assists in finding usability problems and also in (iii) recommending possible solutions, (iv) provides background for introducing guidelines to design user-intuitive interface signs, (v) helps in constructing heuristic checklist from semiotics perspective to evaluate an application, (vi) no additional resource and extra budget are needed. This study also presents a list of methodological guidelines to obtain the perceived benefits of integrating semiotic perception in usability testing for practitioners.

scholarly journals Transaksi Bisnis Online dalam Perspektif Islam

2020 ◽  
Vol 2 (2) ◽  
pp. 91-102
Author(s):  
Siti Dwi Pujiyanti ◽  
Anis Wahdi
Keyword(s):  
Qualitative Research ◽  
Research Method ◽  
Islamic Law ◽  
The Internet ◽  
Library Search ◽  
Business Transactions ◽  
Transaction Process ◽  
Online Business ◽  
Responsible Party

Purpose-The purpose of this research is to find out and explore the online business transactions implemented by the Tokopedia application and online business transactions in the Islamic perspective on the Tokopedia application case study. Methods- This study is a qualitative research method, namely by using the Library Search (Literature Review) field by taking references from several books and sources from websites or the internet. Findings- From the results of this study, it can be concluded that the transaction of buying and selling online on the Tokopedia application is perfectly legal in Islamic law. As long as there is no element of deception or fraud or the desired item is incomplete or defective (not as expected) that occurs during the transaction process. Even if this happens, the responsible party is obliged to return all buyer's money and the sale and purchase is considered invalid because it does not meet the trading agreement.

scholarly journals Key Design Characteristics for Developing Usable E-Commerce Websites in the Arab World

10.28945/3569 ◽  
2016 ◽  
Vol 19 ◽  
pp. 253-275 ◽  
Author(s):  
Layla Hasan
Keyword(s):  
Developing Countries ◽  
Evaluation Method ◽  
Arab World ◽  
Usability Evaluation ◽  
The Internet ◽  
Heuristic Evaluation ◽  
Priority Level ◽  
Good Design ◽  
Usability Problems ◽  
Design Characteristics

This research aims to suggest key design characteristics that are necessary for developing usable e-commerce websites in the Arab world. A comprehensive usability evaluation of four leading Arab e-commerce websites was conducted using the heuristic evaluation method. The results identified major and minor usability problems and major and minor good design characteristics on the selected websites. Based on the results, 51 key design characteristics were suggested. The recommended key design characteristics comprised two levels according to their priority: level one which includes mandatory key design characteristics and level two which includes supplementary design characteristics. The key design characteristics in each level were categorized under specific pages and areas that can be found on any e-commerce website. Such categorizations could direct website evaluators and designers to important pages and areas that should be considered to improve the overall usability of e-commerce websites. The results of this research are particularly important to developing countries which are still facing challenges that may affect the design and accessibility of usable and useful websites. These relate to low speed of accessing the Internet and a lack of website designers who have experience in customers’ needs and websites’ usable design characteristics.

Comparing Low and High-Fidelity Prototypes in Mobile Phone Evaluation

2012 ◽  
Vol 3 (4) ◽  
pp. 1-19
Author(s):  
Ting Zhang ◽  
Pei-Luen Patrick Rau ◽  
Gavriel Salvendy ◽  
Jia Zhou
Keyword(s):  
Mobile Phone ◽  
Mobile Phones ◽  
Deep Understanding ◽  
Usability Testing ◽  
Usability Evaluation ◽  
High Fidelity ◽  
Product Complexity ◽  
Individual Factor ◽  
Usability Problems ◽  
Usability Research

This study compared usability testing results found with low- and high-fidelity prototypes for mobile phones. The main objective is to obtain deep understanding of usability problems found with different prototyping methods. Three mobile phones from different manufactures were selected in the experiment. The usability level of the mobile phones was evaluated by participants who completed a questionnaire consisting of 13 usability factors. Incorporating the task-based complexity of the three mobile phones, significant differences in the usability evaluation for each individual factor were found. Suggestions on usability testing with prototyping technique for mobile phones were proposed. This study tries to provide new evidence to the field of mobile phone usability research and develop a feasible way to quantitatively evaluate the prototype usability with novices. The comparisons of paper-based and fully functional prototypes led us to realize how significantly the unique characteristics of different prototypes affect the usability evaluation. The experiment took product complexity into account and made suggestions on choosing proper prototyping technique for testing particular aspects of mobile phone usability.

scholarly journals Usability Evaluation of the Student Centered e-Learning Environment

2015 ◽  
Vol 16 (4) ◽  
Author(s):  
Inas Sofiyah Junus ◽  
Harry B. Santoso ◽  
R. Yugo K. Isal ◽  
Andika Yudha Utomo
Keyword(s):  
Learning Environment ◽  
Usability Testing ◽  
Usability Evaluation ◽  
Learning System ◽  
Learning Activities ◽  
Literature Study ◽  
Student Centered ◽  
Usability Problems ◽  
Ideal System ◽  
E Learning

<p>Student Centered e-Learning Environment (SCeLE) has substantial roles to support learning activities at Faculty of Computer Science, Universitas Indonesia (Fasilkom UI). Although it has been used for about 10 years, the usability aspect of SCeLE as an e-Learning system has not been evaluated. Therefore, the usability aspects of SCeLE Fasilkom UI as a learning support system and what makes SCeLE Fasilkom UI an ideal system are not known yet. Motivated by the mentioned conditions, the researchers found an urge to conduct a usability evaluation in order to propose a set of recommendation for SCeLE usability improvement, based on usability evaluation reflecting both students and lecturers experience as user.</p><p>In this present research, the usability testing was conducted for SCeLE, targeting learning activities underwent by undergraduate students at Fasilkom UI, in the form of blended mode online learning. The data collection stage in the usability testing was performed by distributing questionnaire to students and interviewing several lecturers and students. The collected data was then analyzed and interpreted to obtain usability problems and solution alternatives. The quantitative data was analyzed using central tendency as reference, while the qualitative data was analyzed using theme-based content analysis. Data interpretation was performed by determining how to handle each kind of data based on the theme, and classifying each of the identified usability problem based on its severity rating.</p><p>The recommendations constructed to solve the usability problems were based on solution alternatives from the analyzed data supported by literature study. The present research comes up with seven main recommendations and an extra recommendation. The main recommendations are solutions to tackle the identified usability problems, while the extra recommendation is not directly related to any of identified usability problems, but was considered potential to improve the SCeLE usability.<br /><br /></p>

Analysis of Reading, Reference and Information Management on the Quality of Scientific Writing

2018 ◽  
Vol 2 (1) ◽  
pp. 63-69
Author(s):  
Muhammad Zarlis ◽  
Sherly Astuti ◽  
Muhammad Salamuddin
Keyword(s):  
Information Management ◽  
Scientific Writing ◽  
The Internet ◽  
Reference List ◽  
Management Skill ◽  
Library Search ◽  
Important Thing ◽  
Reading Material ◽  
Quality Of Research

In education, for educational instruments scientific writing is a very important thing. It requires an information management skill, information management is a library search, which can be done through a computer and guided by the internet. It can also be through the quality of reading used as a reference for scientific writing. In addition, in producing a paper also must know the management of writing, not only required to pay attention to the rules of standard language, but also must be able to convey ideas and ideas well and meet scientific criteria, such as making a quote or reference list used. This paper was written with the aim of improving the quality of research through reading material, making notes and avoiding plagiarism, references using the Harvard system for journals, books, and articles. Management of citing articles either CD or internet, writing, editing, storing references electronically, writing bibliography, and quotations.

STEGANOGRAFI DENGAN MENGGUNAKAN METODE LSB DAN ALGORITMA HILL CIPHER

2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Sherly Gina Supratman
Keyword(s):  
Digital Images ◽  
Text Messages ◽  
The Internet ◽  
Digital Imagery ◽  
Least Significant Bit ◽  
Hill Cipher ◽  
Secure Data ◽  
Audio Video ◽  
The Hill

AbstrakJaringan Komunikasi seperti Internet� merupakan jaringan yang tidak aman untuk mentransmisi data, seperti teks, audio,video dan citra digital. Salah satu cara untuk pengamanan data dapat dilakukan dengan menggunakan proses kriptografi dan �steganografi. Penggunaan ini dengan tujuan untuk merahasiakan pesan yang dikirim dan sekaligus menghindarkan pesan tersebut dari kecurigaan pihak lain yang tidak berkepentingan.Pesan yang digunakan dalam makalah ini adalah berupa text dengan menyisipkannya pada gambar. Pada proses kriptografi, pesan yang berupa text akan dienkrip dengan algoritma Hill Chiper, dan kemudian pesan yang telah dienkrip akan dilakukan proses steganografi pada citra digital� 8 bit dengan skala 0 � 255, dengan metode Least Significant Bit ( LSB ).�Kata kunci: Kriptografi, Hill Chiper, Steganografi, Least Significant Bit�AbstractCommunication Networks such as the Internet are unsafe networks for transmitting data, such as text, audio, video and digital imagery. One way to secure data can be done by using cryptography and steganography process. This use is for the purpose of concealing messages being transmitted and avoiding such messages from the suspicion by others who are not interested.The message used in this paper is text by inserting it in the image. In the cryptographic process, text messages will be encrypted with the Hill Chiper algorithm, and then the encrypted message will be steganographed on 8-bit digital images on a scale of 0-255, using the Least Significant Bit (LSB) method.�Keywords: Cryptography, Hill Chiper, Steganography, Least Significant Bit

PERBANDINGAN METODE MD4 DAN SHA 384 UNTUK MENDETEKSI ORISINALITAS CITRA DIGITAL

2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Lemcia Hutajulu ◽  
Hery Sunandar ◽  
Imam Saputra
Keyword(s):  
Digital Image ◽  
Detrimental Effect ◽  
Digital Images ◽  
Computer Crime ◽  
The Other ◽  
Image Manipulation ◽  
The Internet ◽  
Secret Key

Cryptography is used to protect the contents of information from anyone except those who have the authority or secret key to open information that has been encoded. Along with the development of technology and computers, the increase in computer crime has also increased, especially in image manipulation. There are many ways that people use to manipulate images that have a detrimental effect on others. The originality of a digital image is the authenticity of the image in terms of colors, shapes, objects and information without the slightest change from the other party. Nowadays many digital images circulating on the internet have been manipulated and even images have been used for material fraud in the competition, so we need a method that can detect the image is genuine or fake. In this study, the authors used the MD4 and SHA-384 methods to detect the originality of digital images, by using this method an image of doubtful authenticity can be found out that the image is authentic or fake.Keywords: Originality, Image, MD4 and SHA-384

scholarly journals Estimating the number of usability problems affecting medical devices: modelling the discovery matrix

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Vincent Vandewalle ◽  
Alexandre Caron ◽  
Coralie Delettrez ◽  
Renaud Périchon ◽  
Sylvia Pelayo ◽  
...  
Keyword(s):  
Medical Devices ◽  
Market Access ◽  
Real Life ◽  
Usability Testing ◽  
Probability Of Detection ◽  
Usability Problems ◽  
Usability Problem ◽  
Wide Range ◽  
The Matrix ◽  
Problem Detection

Abstract Background Usability testing of medical devices are mandatory for market access. The testings’ goal is to identify usability problems that could cause harm to the user or limit the device’s effectiveness. In practice, human factor engineers study participants under actual conditions of use and list the problems encountered. This results in a binary discovery matrix in which each row corresponds to a participant, and each column corresponds to a usability problem. One of the main challenges in usability testing is estimating the total number of problems, in order to assess the completeness of the discovery process. Today’s margin-based methods fit the column sums to a binomial model of problem detection. However, the discovery matrix actually observed is truncated because of undiscovered problems, which corresponds to fitting the marginal sums without the zeros. Margin-based methods fail to overcome the bias related to truncation of the matrix. The objective of the present study was to develop and test a matrix-based method for estimating the total number of usability problems. Methods The matrix-based model was based on the full discovery matrix (including unobserved columns) and not solely on a summary of the data (e.g. the margins). This model also circumvents a drawback of margin-based methods by simultaneously estimating the model’s parameters and the total number of problems. Furthermore, the matrix-based method takes account of a heterogeneous probability of detection, which reflects a real-life setting. As suggested in the usability literature, we assumed that the probability of detection had a logit-normal distribution. Results We assessed the matrix-based method’s performance in a range of settings reflecting real-life usability testing and with heterogeneous probabilities of problem detection. In our simulations, the matrix-based method improved the estimation of the number of problems (in terms of bias, consistency, and coverage probability) in a wide range of settings. We also applied our method to five real datasets from usability testing. Conclusions Estimation models (and particularly matrix-based models) are of value in estimating and monitoring the detection process during usability testing. Matrix-based models have a solid mathematical grounding and, with a view to facilitating the decision-making process for both regulators and device manufacturers, should be incorporated into current standards.

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