Papers by Tihomir Orehovački
Human Systems Engineering and Design (IHSED2021): Future Trends and Applications, 2021
With the emergence of the COVID-19 pandemic, video conferencing applications have become an indis... more With the emergence of the COVID-19 pandemic, video conferencing applications have become an indispensable asset of educational ecosystems worldwide. These applications nowadays serve as a backbone of all educational activities, including delivering lectures and practical lab sessions as well as conducting exams. It is therefore of great importance to identify to what extent they comply with the quality requirements. The objective of this paper is to examine the psychometric features of the measuring instrument designed for measuring quality in the context of applications used for delivering lectures online and to determine if there are any significant differences among them when quality attributes and items are taken into account. For this purpose, an empirical study was carried out in which a representative sample of users was composed of students from two Croatian higher education institutions. The research adopted a within-subjects design contrasting applications designed for video interaction and used in educational settings. Reported findings revealed which dimensions of quality are the most relevant in the context of applications meant for video meetings. Implications for both researchers and practitioners were presented and discussed.
Actas del VII Congreso Internacional sobre Aprendizaje, Innovación y Cooperación, 2023
In today's digital age, schools are turning to third-party software that relies on cloud computin... more In today's digital age, schools are turning to third-party software that relies on cloud computing. This shift presents unique challenges, problems and concerns related to privacy and security of students' data. The SPADATAS project aims to promote responsible use of digital technologies and to improve data protection in data academic management practices within educational settings. As an output of the project, we aim to help address concerns related to data privacy and security in schools, particularly related to academic data treatment processes. To raise awareness and enhance data protection at schools, we conducted a comprehensive search of relevant online and open resources. This work presents the methodology used to find the resources and a mapping of the results. While an abundance of resources exists for schools, a meticulous analysis is indispensable to discern which are most effective in enhancing data protection.
Proceedings of the 4th International Conference on Human Systems Engineering and Design (IHSED): Future Trends and Applications, 2021
With the emergence of the COVID-19 pandemic, video conferencing applications have become an indis... more With the emergence of the COVID-19 pandemic, video conferencing applications have become an indispensable asset of educational ecosystems worldwide. These applications nowadays serve as a backbone of all educational activities, including delivering lectures and practical lab sessions as well as conducting exams. It is therefore of great importance to identify to what extent they comply with the quality requirements. The objective of this paper is to examine the psychometric features of the measuring instrument designed for measuring quality in the context of applications used for delivering lectures online and to determine if there are any significant differences among them when quality attributes and items are considered. For this purpose, an empirical study was carried out in which a representative sample of users was composed of students from two Croatian higher education institutions. The research adopted a within-subjects design contrasting applications designed for video interaction and used in educational settings. Reported findings revealed which dimensions of quality are the most relevant in the context of applications meant for video meetings. Implications for both researchers and practitioners were presented and discussed.
Future Internet
Mobile banking is nowadays a standard service provided by banks worldwide because it adds conveni... more Mobile banking is nowadays a standard service provided by banks worldwide because it adds convenience for people. There is no more rushing to a bank or waiting in lines for a simple transaction that can be conducted from anywhere and at any time in the blink of an eye. To be consumed by a respective amount of bank clients regularly, mobile banking applications are required to be continuously improved and updated, be in line with recent security standards, and meet quality requirements. This paper tackles the perceived quality of mobile banking applications that are most commonly used in Croatia and has three objectives in that respect. The first one is to identify the extent to which pragmatic and hedonic dimensions of quality contribute to customers’ satisfaction and their behavioral intentions related to the continuous use of mobile banking applications. The second one is to determine if there are significant differences in the perceived quality between users of diverse mobile ban...
Advances in Intelligent Systems and Computing - 8th International Conference on Applied Human Factors and Ergonomics (AHFE), 2017
Cloud computing applications are nowadays commonly used in various aspects of human endeavour, an... more Cloud computing applications are nowadays commonly used in various aspects of human endeavour, and the education is no exception. Although cloud computing applications bring numerous advantages, their adoption could be significantly reduced due to users’ concerns related to security, privacy, and trust. This paper introduces a research framework that captures the essence of security, privacy, trust, and adoption in the context of cloud computing applications when used in educational environment. Drawing on an extensive literature review, a finite set of items was determined and consequently employed for the design of the measuring instrument in the form of a post-use questionnaire. With an aim to examine psychometric features of the measuring instrument, an empirical study was carried out. Participants in the study were students from two higher education institutions who employed cloud-based applications for the purpose of creating, sharing, and organizing educational artefacts. Study findings helped us determine the relevance of security, privacy, trust, and adoption dimensions in the context of cloud computing applications as perceived by users who apply them for educational purposes.
Advances in Intelligent Systems and Computing - 8th International Conference on Applied Human Factors and Ergonomics (AHFE), Jul 2017
User experience (UX) in the field of Human-Computer Interaction (HCI) refers to the understanding... more User experience (UX) in the field of Human-Computer Interaction (HCI) refers to the understanding of users’ attitudes about using technological artefacts. This study proposes the Unified Theory of Acceptance Use of Technology (UTAUT) for the assessment of Digital Audio Workstation (DAW) user experience among heavy metal and hard rock artists in the European Union (EU) countries. With a total of 711 collected surveys, partial least squares structural equation modeling (PLS-SEM) approach was used for the assessment of the measurement and struc-tural model. To determine the most relevant drivers of DAW usage among artists, the IPMA (importance-performance map analysis) is conducted and assessed. The significant manifest variables should be considered by DAW developers as a guide to improve the UX among artists using DAWs.
Lecture Notes in Computer Science - 19th International Conference on Human-Computer Interaction (HCII), Jul 2017
High dropout rates are one of the major issues of Massive Online Open Courses (MOOCs). Benefits o... more High dropout rates are one of the major issues of Massive Online Open Courses (MOOCs). Benefits of social Web applications such as active participation in creating, sharing and managing content, simultaneous work on the same artefact, synchronous and asynchronous interaction, and variety of functionalities that stimulate productivity in performing assignments have the potential to boost students' motivation and thus address the aforementioned issue. Successful implementation of social Web applications in educational settings is largely influenced by their acceptance by students. With an objective to examine the forerunners of adoption in the context of social Web applications commonly used in MOOCs, an empirical study was conducted. Participants in the study were students of one Croatian higher education institution. Data was collected by means of the post-use questionnaire. Results of data analysis uncovered the extent to which evaluated social Web applications differ with respect to determinants of their adoption.
Lecture Notes in Computer Science - 19th International Conference on Human-Computer Interaction (HCII), Jul 2017
This paper introduces mLogoped, a mobile application for delivering remote speech-language pathol... more This paper introduces mLogoped, a mobile application for delivering remote speech-language pathology (SLP) therapies. With an aim to examine quality of a mLogoped application, an empirical study was carried out. Participants in the study were parents of children diagnosed with SLP disorders. Data was collected with pre-and post-use questionnaire. Items in pre-use questionnaire were related to the participants' computer literacy, their experience in using mobile devices and applications, and their preferences with respect to attending online SLP therapies. After spending a week using the application, the study participants examined its quality by means of user version of Mobile App Rating Scale (uMARS) post-use questionnaire adapted to SLP domain. An analysis of collected data revealed to what extent mLogoped has met one subjective (perceived quality) and four objective (engagement, functionality, aesthetics, and information quality) facets of mobile quality.
Proceedings of the 40th Jubilee International Convention on Information and Communication Technology, Electronics and Microelectronics, May 2017
When employed in educational settings, cloud computing applications enable users to create, store... more When employed in educational settings, cloud computing applications enable users to create, store, organize, and share divergent artefacts with their peers. As an outcome, they have a large number of users worldwide which makes them vulnerable to a variety of security and privacy related threats. With an aim to examine the extent of the perceived security and privacy in the context of cloud computing applications that are most commonly used for educational purposes, an empirical study was carried out. Participants in the study were students from two Croatian higher education institutions. Data was gathered by means of the post-use questionnaire. Study findings uncovered pros and cons of examined cloud computing applications with respect to the manner they are addressing security and privacy concerns of their users.
Lecture Notes in Information Systems and Organisation, Mar 27, 2016
Telehealth refers to the delivery of health care services at a distance by the use of information... more Telehealth refers to the delivery of health care services at a distance by the use of information and communication technologies (ICT). Due to numerous advantages such as the enhancement of the treatment or reaching remotely located people who need treatment at affordable cost, telehealth is nowadays widely used in speech-language pathology (SLP) services. This paper presents the results of two empirical studies carried out among SLP stakeholders. The objective of the first study was to determine the state-of-the-art in using ICT among speech-language professionals and their clients in Croatia. The objective of the second study was to examine content validity and relevance of the introduced set of attributes meant for evaluating quality of educational artefacts employed in SLP therapies. Findings of both studies can be employed as a foundation for the design and implementation of the telerehabilitation systems aimed to assist in the delivery of remote speech-language therapies.
Lecture Notes in Computer Science - 18th International Conference on Human-Computer Interaction (HCII), 2016
Social web applications are nowadays commonly employed in all fields of human endeavor. It is the... more Social web applications are nowadays commonly employed in all fields of human endeavor. It is therefore of a high importance that they meet requirements of as many quality dimensions as possible. This paper reports findings of an empirical study which was carried out with an aim to examine quality of social web applications when they are used in a mobile environment. Participants in the study were students from two Croatian higher education institutions who carried out predefined scenario of interaction with two social web applications for collaborative writing on their smartphones and afterwards evaluated their perceived quality by completing the post-use questionnaire. The analysis of collected data uncovered the relevance of pragmatic and hedonic facets of mobile quality in the context of evaluating social web applications for collaborative writing.
Lecture Notes in Computer Science - 18th International Conference on Human-Computer Interaction (HCII), 2016
Web mashups available online today are very often characterized by a poor quality. Several resear... more Web mashups available online today are very often characterized by a poor quality. Several researchers justify this aspect by considering the situational, short-living nature of these applications. We instead believe such a low quality is also due to the lack of suitable quality models. This paper presents a quality model that tries to capture the nature of Web mashups by focusing on their component-based nature and the added value that they are required to introduce with respect to their single constituents. A finite set of indicators and attributes was first determined by reviewing the literature. An analysis of data collected from domain experts revealed a relevance of performance variables at different levels of granularity. An empirical study was then carried out to assess which dimensions are the most relevant with respect to the mashup quality as perceived by users.
Lecture Notes in Computer Science - 18th International Conference on Human-Computer Interaction (HCII), 2016
Information and communication technology, particularly multimedia technology and the Internet, ar... more Information and communication technology, particularly multimedia technology and the Internet, are commonly employed in the assessment, treatment and education of speech-language and communication disorders. Considering that video artefacts supplement or replace the speech therapist and can be used in both synchronous and asynchronous settings, they represent an important part of an online therapy. This paper presents a part of an ongoing research regarding the use of video in speech-language online therapy. The aim of the paper is threefold. First, we describe how video artefacts have been designed in accordance with the principles of multimedia learning and subsequently employed in telerehabilitation of pediatric speech disorder (dyslalia). Second, we introduce a set of quality attributes which significantly affect the success of the implementation of educational video artefacts in speech-language pathology (SLP) online therapies. Finally, we present and discuss the results of a pilot study carried out with an objective to examine the perceived quality of educational video artefacts applied in SLP telerehabilitation.
Proceedings of the 39th International Convention on Information and Communication Technology, Electronics and Microelectronics, May 2016
Being a convenient replacement for their desktop counterparts, social Web applications are nowada... more Being a convenient replacement for their desktop counterparts, social Web applications are nowadays widely employed in diverse aspects of human endeavour, including education. Current body of knowledge on assessment of social Web applications is composed of studies that were mainly focused on quantitative measurement of their quality when they were used in their primary setting. On the other hand, there is a lack of studies related to the evaluation of social Web applications when they are employed on mobile devices such as smartphones or tablets. This paper presents findings of the empirical study that was carried out with an objective to evaluate the mobile quality of social Web applications from qualitative perspective. For that purpose, the retrospective thinking aloud method was applied. Participants in the study were students from two different higher education institutions who completed predefined scenario of interaction with two social Web applications for collaborative writing: Google Docs and Zoho Docs. The most relevant facets of mobile quality in the context of social Web applications are uncovered and discussed.
Proceedings of the 39th International Convention on Information and Communication Technology, Electronics and Microelectronics, 2016
The focus in computing today has shifted from the desktop environment to the Web. Tasks that were... more The focus in computing today has shifted from the desktop environment to the Web. Tasks that were previously performed exclusively on desktop can now be done in Web environment. Web tools have the same features as their desktop counterparts and offer additional specific benefits. These tools do not need to be installed or updated nor are restricted to individual computer or operating system yet available anytime and from any location. Work can be done in collaboration and result can be easily shared. The same applies to programming so the complete process of software development can now be done without the use of traditional desktop tools. The basic tool used in software development is an IDE (Integrated Development Environment) which allows writing, translating and testing programs. It is also commonly used in a learning programming process. Replacing desktop IDE with its web equivalent in learning programming has potential to improve that process and bring some advantages related to new environment. This paper presents the use of AHP method for multi-criteria decision-making related to choosing the most appropriate Web IDE for learning programming and reports experience of its use in introductory programming course.
Proceedings of the 24th International Conference on Information Systems Development, Aug 25, 2015
Telehealth, as a provision of health care at a distance by usage of ICT, has also found its appli... more Telehealth, as a provision of health care at a distance by usage of ICT, has also found its application in speech-language pathology (SLP) services. There are many advantages of remote usage of SLP services like extending the treatment or reaching remotely located people who need a treatment at affordable cost. While in the developed countries SLP telepractice is becoming common, there is little evidence about their usage in transitional and developing countries. This paper presents the findings of a survey conducted among SLP professionals and their clients in Croatia. The research results provide insights into the profiles of these two categories of SLP users regarding their computer literacy as well as their needs and preferences in using remote speech-language services. These findings present an important input for development and implementation of telerehabilitation approaches into environments that still lag behind developed countries.
Acta Graphica, May 12, 2015
Modern graphic/programming tools like Unity enables the possibility of creating 3D scenes as well... more Modern graphic/programming tools like Unity enables the possibility of creating 3D scenes as well as making 3D scene based program applications, including full physical model, motion, sounds, lightning effects etc. This paper deals with the usage of dynamic frames based generator in the automatic generation of 3D scene and related source code. The suggested model enables the possibility to specify features of the 3D scene in a form of textual specification, as well as exporting such features from a 3D tool. This approach enables higher level of code generation flexibility and the reusability of of the main code and scene artifacts in a form of textual templates. An example of the generated application is presented and discussed.
Lecture Notes in Computer Science - 17th International Conference on Human-Computer Interaction, Aug 7, 2015
Positive user experience (UX) is considered to be one of the main predictors of users’ loyalty. I... more Positive user experience (UX) is considered to be one of the main predictors of users’ loyalty. In the context of Massively Online Battle Arena (MOBA) games, absorption & dissociation, immersion, presence, flow, and social play constitute a set of essential user experience (UX) facets. With an objective to determine to what extent the aforementioned UX dimensions contribute to MOBA games players’ continuance intentions, an empirical study was carried out. Participants in the study were randomly selected MOBA games players. Data were collected by means of an online post-use questionnaire. The psychometric features of the conceptual model that reflects an interplay of UX facets and players’ loyalty were examined by means of the partial least squares (PLS) structural equation model-ling (SEM) technique. Implications for both researchers and practitioners are presented and discussed.
Lecture Notes in Computer Science - 17th International Conference on Human-Computer Interaction, Aug 5, 2015
Educational games are specific piece of slow technology that enables students to enhance their co... more Educational games are specific piece of slow technology that enables students to enhance their competences through fun and play. Taking into account their features, games are widely used in diverse educational settings, including programming. This paper discusses findings of the empirical study that was carried out with an objective to examine quality of two educational games meant for learning programming concepts. Participants in the study were students from two Croatian higher education institutions. Subjective data was collected with pre- and post-use online questionnaires whereas objective data was gathered with reports in the form of in-game progress screenshots. The analysis of collected data uncovered: (1) to what extent students with different background knowledge differ in their perception of programming and attitudes towards using games for educational purposes, and (2) which pragmatic and hedonic facets of quality are relevant for the assessment of games designed for learning programming.
Proceedings of the 38th International Convention on Information and Communication Technology, Electronics and Microelectronics, May 29, 2015
Programming competences have become an important aspect in many different professions. Considerin... more Programming competences have become an important aspect in many different professions. Considering that games give enjoyment to their players and stimulate their curiosity, they represent a convenient tool for gaining programming skills. With an aim to examine the quality of games designed for learning programming from both pragmatic and hedonic perspective, an empirical study was carried out. Study participants were students enrolled in different programmes at two Croatian higher education institutions. Data was collected with subjective measuring instruments. The reported findings uncovered pros and cons of evaluated games meant for leaning programming concepts.
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Papers by Tihomir Orehovački