Dragoş Daniel IordacheThe National Institute for Research & Development in Informatics · Digital Transformation and Governance
Dragoş Daniel Iordache
PhD
About
66
Publications
16,562
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353
Citations
Citations since 2017
Introduction
Research Scientist skilled in Science of Education, Computer Science, Instructional Design and Academic Writing.
Additional affiliations
February 2018 - present
November 2006 - present
Education
October 2007 - June 2011
Publications
Publications (66)
Social networking websites (SNWs) have become a popular virtual meeting place allowing users to voluntarily post personal information, send and receive message, stay connected online with their offline friends and new online friends, or share photos, videos, bookmarks, blogs, private messages and join groups. People are spending ample amount of tim...
Augmented Reality (AR) is merging real and virtual environments within a single interaction space. This tight integration of computer technologies into a real environment is creating new opportunities and challenges for the designers of e-learning systems as well as a new kind of user experience (UX) for the learner. More recently, AR-based educati...
The development of Augmented Reality (AR) systems is creating new challenges and opportunities for the designers of e-learning
systems. The mix of real and virtual requires appropriate interaction techniques that have to be evaluated with users in order
to avoid usability problems. Formative usability aims at finding usability problems as early as...
The usability of public administration web sites is a key quality attribute for the successful implementation of the Information Society. Formative usability evaluation aims at finding and reporting usability problems as early as possible in the development process. The objective of this paper is to present and comparatively analyze the results of...
Augmented reality (AR) is a promising technology for improving the application and comprehension skills of students. The ARiSE project developed an Augmented Reality Teaching Platform (ARTP) for secondary schools. A Chemistry learning scenario was implemented that is based on the interaction paradigm “building with guidance”. This study aims at ass...
Social influence (SI) is an important factor in adopting wearable technology. In the context of a fast-aging population smartwatches (SWs) have the advantage of responding to specific healthcare and assistance needs, which comes as an advantage when dealing with the older population. This study investigates the role of SI in elderly’s acceptance of...
The COVID-19 pandemic had a major impact on the normal functioning of several areas of activity. Education and the education system underwent major changes during this period due to restrictions on the conduct of educational activities in the classroom. Under these conditions, efficient solutions were needed to carry out the teaching, learning and...
In recent years we have seen a rapid proliferation of applications for older people as embedded information technologies have expanded into almost all sectors of the economy: government, industry, commerce, education and health. These scientific and technical advances have made usability assessment of software systems particularly important for the...
In recent years there has been an increased diversification of educational applications based on virtual reality (VR) technology. Educational content and three-dimensional visualization specific to virtual reality applications can facilitate the understanding of abstract knowledge present in the curricula of many school courses. Most virtual realit...
Interactive virtual reality (VR) applications are experiencing a great development nowadays. This development is supported by the constant emergence of virtual reality devices (HTC VIVE, Oculus Rift, etc.) that are becoming more robust and reliable. Currently, there are virtual reality applications for increasingly diverse fields, from VR games and...
In the last years, the evolution of e-learning platforms offers complex opportunities for teaching and training in the most diverse contexts and sectors of activity. The main goal of the project “Cultural Mediators for the Postal Sector” (CULMED) is to facilitate the third country nationals’ integration into the host societies, through the post pro...
In recent years, quantitative methods and psychometric analyses have been an integral component in the process of developing and evaluating health measurement instruments. The objective of the present study is to demonstrate the potential and usefulness of the person-centered approach in the field of e-health by identifying groups of patients with...
Accessing information and medical services is a fundamental human right, whether it is provided
in the online or in the classical environment. The widespread of internet use has produced a change in the
users’ preferences, shifting the attention towards electronic health care or monitoring services provided
through medical Web applications. In this...
Among the professional factors that influence performance in the research-development-innovation (RDI) activities are: quality of occupation, organization and management in RDI activity, professional development and organization resources. This article analyzes the influence of job quality in increasing the performance in RDI activities. The analys...
The social media technologies are blurring the boundaries between formal and informal/non-formal learning and provide new educational opportunities. Recent work shows that online social networks provide various kinds of educational support, such as social learning, informal/non-formal education, information, interaction, and collaboration. The aim...
Social media technologies stimulate the implementation of the social learning paradigm. Online discussion groups created by educators to support a closer relationship with students are widely used in universities. However, the research on this topic has been carried on mainly by qualitative studies and there are few approaches aiming to measure the...
Currently, e-learning platforms are increasingly used tools in universities to easily and efficiently achieve the proposed educational goals. Students and teachers can choose from a variety of learning platforms that differ both in structure, function and facilities they offer. Under these conditions, usable platforms have much greater chances to b...
Recently, the number of e-Health applications that aim to streamline relationships between relevant institutions, physicians, health professionals and other interested entities has increased. One of these applications is the Integrated Information System of the Romanian Health Insurance (CNAS-SIUI Portal). The main objective of this paper is to ass...
The potential benefits of the social networking websites for the higher education are a hot topic that has been intensively researched in the last decade. A lot of research effort has been devoted to the use of Facebook which is widespread among university students. Nevertheless, very little is known about the amount of time spent for specific acti...
The social media technologies are blurring the boundaries between formal and informal/non-formal learning and provide new educational opportunities. Recent work shows that online social networks provide various kinds of educational support, such as social learning, informal/non-formal education, information, interaction, and collaboration. This res...
In recent years, there has been a rapid development of social networks and an increase in their diversity both in terms of functionality and users. Online social networks (OSN) can offer considerable benefits to communication and user relationships as well as benefits for students in learning and participating in online courses and platforms. Among...
In the last decade, the teaching and learning processes have evolved and adapted in order to take into account the societal changes. The fast proliferation of online social networks creates new possibilities to get and share information as well as new opportunities for education. The powerful capabilities of the social media technologies make it po...
Social media technologies provide various forms of educational support. Online discussion groups have been created by educators to maintain a closer relationship with the students. Although the online discussion groups are widely used in universities, the research on this topic has been carried on mainly by qualitative studies. There are few approa...
The teaching-learning processes have evolved, transformed, adapted and took into account the changes in the society. One of the major implications of this is the expanding of the context of a classroom. In present, this is no longer the only place where teaching and learning processes take place. At the same time, there has been an exponential incr...
This research analyzes the extent and the way in which many romanian local public administration institutions
are currently using social media, involving citizens in active collaboration within society. This research provides empirical references, analyzes opportunities and challenges for more effective e-Government processes and to provide better...
The population is ageing and the percentage of the elderly is continuously growing. A key priority to address the demographic challenges is to implement more efficient e-services. The websites for active aging provide useful information and advice to old people, informal caregivers, and medical staff. In order to be an effective help, these website...
In the last years, there is an increasing demand to develop a national repository for software programs, especially in the area of public administration. This kind of e-service is required both by vendors interested in promoting their products and funding institutions, interested to estimate the costs and to improve the cost/benefit ratio. The Nati...
In this research paper we analyze the extent and manner in which e-government institutions from public
administration currently use social media networks. The sample consist in a number of 30 local e-government
institutions analyzed using the collective case study, based on a set of indicators for three social media networks, frequently used in Rom...
The time spent on Facebook by university students is continuously increasing. This fact is raising many
questions as regards the relation between the social networking websites and the university. The educators
are challenged to understand the factors that are driving the adoption of social networking websites,
the characteristics of the daily use...
Today, the social networking websites are widespread among university students.
The most prominent example is Facebook that had a considerable penetration rate in the last
decade, especially among young people. In the era of social learning, educators have to
understand the motives that are driving the daily use as well as the positive and negative...
Recent studies show that university students are frequently using the online social networks (OSN) in order to get new information about friends, courses and university events, to maintain relationships with old colleagues or to search new friends. All these motives may differ depending on the gender of students. By understanding gender differences...
Augmented reality (AR) technologies could enhance learning in several ways. The quality of an AR-based educational platform is a combination of key features that manifests in usability, usefulness, and enjoyment for the learner. In this paper, we present a multidimensional model to measure the quality of an AR-based application as perceived by stud...
Recent research on the use of social networking websites reveals an intense use of Facebook that may cross the boundaries between use and abuse and may lead to dependence. The objective of this paper is to analyze the relationship between the Facebook dependence and the negative consequences of the excessive use of Facebook on the students’ univers...
The text-to-speech (TTS) synthesis is widely used in the area of assistive technologies for visually impaired people as well as for people with dyslexia or related learning disabilities. In the case of multilingual text-to-speech synthesis, both the language identification and voice switching are desirable. This paper presents the
implementation of...
Social networking sites (SNS) are characterized by user-generated content, online identity creation, and relational networking. Facebook is by far the most popular social networking site being currently used by a large diversity of users, including people with special needs. World Health Organization reports that more than 285 million people worldw...
The increasing popularity of Facebook among university students stimulated the researchers to understand the reasons for joining and using the social networking websites. Several findings of the extant research suggest that the motives of using social networking websites are depending on the virtual community type and users’ profile. The objective...
As social networking websites become more and more widespread there is an increasing interest to analyze and explain their usage. Facebook is a web-based service that is very popular among university students. In this paper a motivational model is presented that explains Facebook acceptance by university students with two key factors: perceived use...
Facebook is a social networking website which gained a huge popularity in the last decade among university students. Recent papers show that Facebook favors meeting new people, staying in touch with friends, getting useful information and knowledge, sharing of documents, joining groups and participating in group discussions. Although the usage of s...
The use of social networking websites is becoming increasingly popular. While there are many reasons for this, the rapid spread of ICT is one of the most determining factors. New technologies provide various possibilities for education and in relation to social networking websites it is worth emphasizing their diverse possibilities. The functionali...
The educational applications based on augmented reality (AR - Augmented Reality) provide an attractive and familiar interaction space. The goal of this paper is to estimate the contributions that the specific capabilities of an AR-based learning application have on the effectiveness of learning Chemistry in the general school. To this purpose, two...
The usability of websites is an important requirement in the Information Society. Unfortunately, evaluation of software products prior to a public release is not a current practice yet. The purpose of this paper is to present a case study on the formative usability evaluation of five websites from the local public administration. The evaluation res...
Augmented reality (AR) is a promising technology for improving the applicative and comprehension skills of students. The ARiSE project developed an Augmented Reality Teaching Platform (ARTP) for secondary schools. A Chemistry learning scenario was implemented that is based on the interaction paradigm "building with guidance". This study aims at ass...
Tehnologiile bazate pe realitate îmbogăţită – AR (Augmented Reality) crează noi oportunităţi de creştere a motivaţiei pentru învăţare în rândul elevilor. Integrarea dintre real şi virtual necesită tehnici de interacţiune specifice, fapt care face mai dificilă dezvoltarea de aplicaţii utilizabile în acest domeniu. Metodele individuale de evaluare a...
Augmented reality (AR) technologies provide teachers with new opportunities to enhance students' motivation to learn. The mix of real and virtual objects requires specific interaction techniques thus making the design for usability a difficult task. Individual usability evaluation methods have specific strengths and weaknesses that suggest a mixed-...
Accesibilitatea şi utilizabilitatea sunt două concepte care au evoluat în paralel, utilizabilitatea fiind asociată cu ergonomia (în special ergonomia cognitivă) interfeţelor cu utilizatorul în timp ce accesibilitatea este asociată cu accesul nediscriminatoriu la tehnologia informatică. În cadrul acestei lucrări se prezintă rezultatele testării cu u...
In a constructivist approach to education an optimal learning environment should provide the students with assistance to develop their own abilities to „construct” knowledge. Augmented Reality-based educational applications create collaborative learning environments which could significantly contribute to this goal. In this paper we present some re...
The proliferation of augmented reality (AR) technologies creates opportunities for the devel-opment of new learning scenarios. More recently, the advances in the design and implementation of desktop AR systems make it possible the deployment of such scenarios in primary and secondary schools. Usability evaluation is a precondition for the pedagogic...
The development of Augmented Reality (AR) technologies is creating new opportunities and challenges for the designers of e-learning systems. More recently, AR based educational systems have been developed that are implementing new learning scenarios for primary and secondary schools. An important goal of these novel teaching platforms is to enhance...
Some circumstances have shown that pupils and students tend to better understand the information from their colleagues than their teachers or professors as cooperation contributes to achieving social development and interpersonal attitudes in the classroom. Because learning is an interactive process of knowledge construction, social actors tend to...
Evaluation the usability and pedagogical effectiveness of an augmented reality based learning scenario is discussed.
The mix of real and virtual requires appropriate interaction techniques that have to be evaluated with users in order to avoid usability problems. Formative usability aims at finding usability problems as early as possible in the development life cycle and is suitable to support the development of novel interactive systems. This work presents an ap...
Combinaţia realului cu virtualul din sistemele de realitate îmbogăţită necesită
tehnici de interacţiune adecvate care trebuie testate cu utilizatori pentru a evita problemele
de utilizabilitate. Evaluarea formativă are ca scop identificarea problemelor de
utilizabilitate cât mai devreme şi este utilă în dezvoltarea sistemelor interactive
caracteriz...
Realitatea îmbogăţită este caracterizată de un nou tip de
interacţiune om-calculator, care se bazează pe integrarea
realului cu virtualul în acelaşi spaţiu de interacţiune. Mai
nou, aceste sisteme au abordat scenarii de învăţare pentru
şcoala generală cu scopul de a sprijini promovarea unor
noi metode de predare. Această lucrare prezintă o evaluare...
User interaction components of Augmented Reality (AR) systems have to be tested with users in order to find and fix usability problems as early as possible. In this paper we will report on a user-centered design approach for AR systems following the experience acquired during the design and evaluation of a software prototype for an AR-based educati...
The ARiSE project will develop an AR platform and associated pedagogical scenarios of use, enabling teachers to promote new teaching practices for teaching scientific and cultural content in primary and secondary schools. The project aims at testing pedagogical effectiveness of introducing augmented reality (AR) into the classroom. The objective of...
Formative usability evaluation aims at finding usability problems during the development process. The earlier these problems are identified, the less expensive to fix they are. This paper presents some preliminary results from a formative usability testing of the 1st prototype developed for the ARiSE (Augmented Reality in School Environments) proje...
Questions
Question (1)
I have several HTC VIVE devices I want to use for teaching purposes in a virtual learning course. Any recommendation and suggestion is welcome.
Thank you in advance!
Projects
Projects (8)
The project aims, among other main objectives, to
develop and validate a system for monitoring and assessing
the health status of seniors that integrates non-invasive
motion and physiological wearable sensors for the collection
of health parameters, a smart environment with discreet
environmental sensors to monitor daily activities and
lifestyle, and a cloud platform for data aggregation and
storage, including the presentation of results generated by
advanced data analysis.
Among the most important functionalities provided by the
smart environment to be developed within the project in the
benefit of senior patients are as follows:
1. Non-invasive monitoring of the current health status in
order to define a real elderly profile for presenting the
current state of some health parameters (physiological
and cognitive);
2. Defining a model for tracking the locomotor decline
and fall prevention;
3. Monitoring of current activities and lifestyle;
4. Personal safety supervision;
5. Personalized ambient adaptation to allow controlled
use of environmental devices or alarm triggering in the
event of an abnormal health parameter or an
unforeseen and dangerous event;
6. Supporting the remote assessment of the senior's
current health status and early diagnosis by the
personal physician;
7. Creating facilities to support the social interactions of
the senior;
8. Identifying the most representative ways of taking care
of the seniors;
9. Facilitating the senior’s empowerment and
involvement in the optimal management of his/her
own health.
It also aims to provide as outcomes:
• Methods, techniques, algorithms and software components for analysis, modeling and prediction;
• Methodology for the analysis, modeling and prediction of the evolution of biomedical data in order to assist the decision;
• Business model for a system for monitoring and assessing the health of elder people;
• Models and tools for assessing health and quality of life in relation to health;
• Models and software components for identifying homogeneous groups, to assess the acceptance and utility of disposing devices applied to the care of the elderly;
The MONISAN project has the following general objectives:
1) to advance the status of knowledge in the field of personalized patient monitoring and support through the development, adaptation and integration of innovative ICT solutions;
(2) to advance the state of knowledge in monitoring the health of the population by using time series modeling, simulation and prediction;
(3) to advance the state of knowledge in assessing the quality and usability of solutions based on mobile, IoT and Cloud technologies in eHealth.