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  <front>
    <journal-meta />
    <article-meta>
      <title-group>
        <article-title>Operation system features and cloud services for lecturer work</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <string-name>Lesya V. Bulatetska</string-name>
          <email>bulatetska.lesya@vnu.edu.ua</email>
          <xref ref-type="aff" rid="aff1">1</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Vitaliy V. Bulatetskyi</string-name>
          <xref ref-type="aff" rid="aff1">1</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Tetyana O. Hryshanovych</string-name>
          <email>hryshanovych.tatiana@vnu.edu.ua</email>
          <xref ref-type="aff" rid="aff1">1</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Yulia S. Pavlenko</string-name>
          <email>pavlenko.yulya@vnu.edu.ua</email>
          <xref ref-type="aff" rid="aff1">1</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Tetyana I. Cheprasova</string-name>
          <email>cheprasova.tatiana@vnu.edu.ua</email>
          <xref ref-type="aff" rid="aff1">1</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Andrey V. Pikilnyak</string-name>
          <email>pikilnyak@gmail.com</email>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <aff id="aff0">
          <label>0</label>
          <institution>Kryvyi Rih National University</institution>
          ,
          <addr-line>11 Vitalii Matusevych Str., Kryvyi Rih, 50027</addr-line>
          ,
          <country country="UA">Ukraine</country>
        </aff>
        <aff id="aff1">
          <label>1</label>
          <institution>Lesya Ukrainka Volyn National University</institution>
          ,
          <addr-line>13 Volya Ave., Lutsk, 43025</addr-line>
          ,
          <country country="UA">Ukraine</country>
        </aff>
      </contrib-group>
      <fpage>274</fpage>
      <lpage>286</lpage>
      <abstract>
        <p>The work proposes a conception of setup and use of teacher's or lecturer's workspace using common software and hardware products. The research object is a system built by using operating system capabilities in conjunction with ofice suite and public cloud service, as a foundation for teacher's digital workspace. Research is made on how to set up, scale, and operate such a system, by studying the experience of national and foreign scientists and teachers, and using our own experience in educational processes, and working with operating systems and cloud services. As a result, we got a system which is easy to set up, learn, and apply by teachers without significant experience working remote education systems, and could be used for initial learning of remote education principles. It could be used as an initial step before migrating to specialized remote education systems. In the future, the system itself could be improved by adding additional objects into the system and a higher integration level between objects and external subjects.</p>
      </abstract>
      <kwd-group>
        <kwd>eol&gt;cloud storage</kwd>
        <kwd>operating system</kwd>
        <kwd>teacher's site</kwd>
        <kwd>distance education</kwd>
        <kwd>ofice software</kwd>
        <kwd>file manager</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body>
    <sec id="sec-1">
      <title>1. Introduction</title>
      <p>
        Increased availability of modern computer hardware and high-speed communication systems
made possible a more efective study process organization, to account for all interests of the
modern generation of pupils and students, who are more accustomed to modern technologies
if we compare with previous generations. It became especially urgent in modern conditions,
associated with the objective impossibility of communication between teachers and students
directly during quarantine activities. Researches, who support the blended education, consider,
that in the process of the distance communication, as in the base of the distance education, arise
new challenges related to the technical side of the process, which includes storage and providing
access to education materials, providing feedback, knowledge assessment, etc. [
        <xref ref-type="bibr" rid="ref1">1, 2, 3, 4, 5, 6, 7</xref>
        ]
      </p>
      <p>Nowadays, many scientific researches are dedicated to the studying of using cloud
technologies in the educational process. Aldakheel and Rajaei considers that the distance education is
the main application of cloud services in education [8].</p>
      <p>
        A lot of researches [
        <xref ref-type="bibr" rid="ref10 ref11 ref12 ref13 ref2 ref3 ref4 ref5 ref6 ref7 ref8 ref9">9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27</xref>
        ]
substantiate the feasibility of using cloud environments in the educational process. Alamri
and Qureshi confirm, that cloud services must be apply in higher education for educators and
students. They substantiate the implementation of the on-line education using cloud services to
share numerous education materials such as reference books, videos,online lecture and virtual
class rooms [
        <xref ref-type="bibr" rid="ref14">28</xref>
        ].
      </p>
      <p>
        Customers now have a big choice of software platforms, both commercial and free. For
example, most Ukrainian universities use a learning platform (LCMS) Moodle for mixed mode
education [
        <xref ref-type="bibr" rid="ref15 ref16 ref17 ref18">29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40</xref>
        ]. But the biggest problem facing users now
is learning new tools, which requires time and skills to use it efectively. This is especially
the case for senior people and non-technical specialists. Mintii in the article [41] analyzes the
results of the survey of lecturers on using the learning content management system (LCMS)
Moodle in the educational process in Kryvyi Rih State Pedagogical University. The research
shows that lecturers over 60 years old need methodic assistance in using Moodle. The results of
the survey conducted by Institute of Information Technologies and Learning Tools of National
Academy of Educational Sciences of Ukraine show the experienced lecturers, familiar with the
latest technologies of distance education and communication, are not numerous [42, 43].
      </p>
      <p>Prybylova notices that in the new approach to distance learning, the equipping of teacher
and student workplaces also plays an important role, among other factors [44]. So there is a
problem with lecturer personal workspace organization in case of absence of advanced personal
computer skills.</p>
    </sec>
    <sec id="sec-2">
      <title>2. Materials and methods</title>
      <p>In the first phase, we did the theoretical analysis and abstraction of specialized literature. It was
done to define the state research problem, determine it’s actuality, and to formulate goals and
objectives of the research. We also did pedagogical observations to determine common students
and lecturer interaction patterns in a remote or mixed education environment.</p>
      <p>In the process of building the model, we used the knowledge and experience of modern
operating systems. The main attention was paid to Windows 10 OS, MS Ofice 2016 and 2019,
cloud service OneDrive and their interoperations. Thus the model was built based on the actual
teacher’s needs and personal experience. After building the model and implementation we
did a pedagogic experiment: we tested the implemented model on practice with students of
the Faculty of Informations Technologies and Mathematics at Lesya Ukrainka Volyn National
University.</p>
    </sec>
    <sec id="sec-3">
      <title>3. Discussion and results</title>
      <p>The main category of customers already is familiar with typical tools, which they already use
in day to day life: operation system (working with filesystem objects), ofice suites, Internet
browsers, cloud services (storage, access sharing, etc), electronic mail and messaging. It turns
out that a minimal level of computer experience is suficient to quickly and relatively efectively
organize their workspace for distance education.</p>
      <p>Windows 10 OS already has the majority of components required for a teacher’s digital
workspace. We will use this operating system as the most popular among users [45, 46]
(figure 1). So the operating system could serve as the main gateway to all tools required for the
educational process.</p>
      <p>Let’s consider this the whole system in detail.</p>
      <p>It is possible to fill the cloud environment (OneDrive, for example) with files using the file
manager of the operating system. As the OS contains the instruments for synchronization such
data warehouse with the local folder, the teacher can operate. The OneDrive application allows
you to create the account, if it is not created yet, use the backups of the important data, to
restrict the bandwidth of the cloud communication channel and provide the interaction with
ofice suites (MS Ofice, for example). Using this application, it’s possible (if necessary) to get to
the web-site, where you’ll get a wider set of set-ups, for example, managing the access of other
users to your information (figure 2).</p>
      <p>File organization in cloud storage deserves additional attention. One may separate files
related to assessments from reporting or documentation files. It’s worth creating a dedicated
folder that will be used for read-only access for others and separate it from backup files (sorted
by some periods). This will allow the customer to avoid unnecessary work of maintaining
additional access controls (or shareable links for browsers). Backup files will be stored separately
because the file name will be not changed but it’s content instead with the latest actual content.
This is convenient for academic assessment reports which are changed every semester. The
report itself is an Excel spreadsheet, which is easy to use for an average user and has large
automation opportunities at the same time. These digital journals are easy to access both for
the lecturer and a student. Gives opportunity for a central audit of student’s scores and quickly
spot lagging behind students. This system allows only to the lecturer to edit student’s scores
and provides better transparency of the education process. This spreadsheet can be rendered
by every lecturer, based on his spreadsheet skills. Besides the usual students’ list, assessments,
dates, and topics one may implement the following:
• auto-sum of all current and control grades,
• continuation of rows by leveraging columns, which include rating indexes (to avoid
dealing with fractional rates in 100-based rate system, or any other system where rate
are multiplied by constant index),
• implement conditional cells, for example: pass or didn’t pass for a test, auto-sum of
question’s grades for exam,
• auto-hide rows with students which already passed all tests and highlight only remaining
students,
• generate exams or tests report with auto-filled values,
• color-grading and custom rows format based on a conditional cell’s formatting [47, 48,
49, 50, 51, 52].</p>
      <p>An example of such a spreadsheet is shown in figure 3. Full spreadsheet is available at our</p>
      <p>Mega.nz (50 Gb free space) – for multimedia files and software, Flickr (up to 1 Tb free space) –
for photo- and video materials [54].</p>
      <p>It is expedient to create folders with the access to rewriting for students on such storages, as
they may upload their files with completed tasks. The structure of such folders and subfolders
can be determined by demands of the specific course. Such files and folders will be rarely edited
by the owner, that’s why it’s not necessary to synchronize them automatically. It’s faster and
more convenient to manipulate such files by the file manager in OS, that’s why the additional
software is not needed.</p>
      <p>The interface of cooperation with pupils and students is a very important part in the
development of the distance course. The most efective, in our opinion, is web interface – the
teacher web-site. Such website may include minimum information about a specific distance
course, as all the information stored in cloud storages. The structure of such a web-site may
be very simple. It is possible to add there ordered lists of hyperlinks, linked to the diferent
materials of distance courses: digital journal, manuals, software, links for messengers for fast
feedback, e-mails, resources for responding completed tasks and so on. Our web-site VV&amp;VL is
an example of a teacher site. It is used for organizing distance studying courses during several
years [53]. This web-site is simple and it was developed using Internet-services only, without
any IDEs. Any lecturer (or teacher) may choose such a web-site or to develop it by himself and
work with it, using browsers only.</p>
      <p>In the first stages, we used Microsoft cloud services (Docs in particular) to create Web-site for
our student users. However, Docs was discontinued in 2018 so we used Google Sites which has
more design options and ease of use. One may consider using Microsoft SharePoint [55] or blog
platforms, etc. Based on the technical experience and skills of a particular lecturer or teacher.</p>
      <p>The structure can be organized in the following way:
1. Information about the teacher with contact data and other details, required for students
and for colleagues, guests, others as well.
2. Sections by specialties, academic groups, subgroups. These sections contain links to
electronic journals (stored in OneDrive), links to learning materials: lectures’ contents,
literature, subfolders with data for practical tasks (instructions, tasks, software, lists of
questions for test or exam, links to useful resources) (stored in Google Drive or Mega.nz),
links to available storage to submit completed tasks, completed tasks’ contents, links to
messaging platforms to discuss and get a consultation for a specific course, or specific
academic group.
3. The section about research theses. It highlights subsections for abstracts, course works,
diploma, and master research. After that, it contains a list of hyperlinks to examples and
templates of documentation for research representation; requirements for research works;
list of available research subjects; previous years research works archive; destination
folder with write access where students can upload their research results in electronic
form (Google Drive, Mega.nz).
4. The section about diferent practicums: internship, pedagogical, graduate – and again
with hyperlinks to tasks, documentation, examples, assignments upload forms, etc.
5. Section for lecturer’s personal documentation, which is not accessible to students, but
is visible to colleagues and management, and contains educational curricula, training
reports and other document flow elements (Google Drive, Mega.nz).
6. News section. It may contain news subsections designed for specific branches, or academic
groups.
7. Other sections, which may exist based on the requirements of a specific lecturer or course.
General system’s scheme represented in figure 4.</p>
      <p>According to the scheme above the system works in such a way. Lecturer loads the operating
system and uses File Explorer (or any other convenient file management application) (1) to
manipulate files and their contents, read and edit files in a local folder, synchronized with
OneDrive storage (7). OneDrive application (5) must be installed in the OS. The ofice suite MS
Ofice (2) is used for editing content of files in folders. But OneDrive app (6) is also needed for
automatically synchronizing with cloud storage OneDrive (7).</p>
      <p>Lecturer is able to set the synchronization type (interaction of this cloud storage with the
ofice suite (8)) by changing the setting of OneDrive application (3). Also it is possible to
manipulate by the storage using only web-browser (4, 9). It is able to give access to files and
folders, to create hyperlinks, that may be used developing the teacher web-site (figure 5).</p>
      <p>Also using web-browser the teacher fills other cloud storages (10), arranges these storages,
creates hyperlinks and creates access permissions. Web-browser is the basic application in
developing teacher web-site (based on hyperlinks created earlier), using Google Site (11, 12).
Ant the student is able to use any web-browser to get the access to materials and resources
placed in cloud storages and additional resources (e-mails, invitations to messengers, ets.) (13).</p>
      <p>This scheme is extendable: add other resources, storages, services by adding corresponding
hyperlinks on the web-site and depends on the lecturer’s technical skills. For example, it could
be Google Classroom courses, Moodle distance learning courses [56], but these do not belong
to the typical user’s tools spectrum.</p>
      <p>Once in a while a need arises to perform backups, which could be done easily with the
OneDrive folder synchronization feature. For other cloud platforms, dedicated synchronization
software could be used, but it shouldn’t be running permanently to save network trafic. It is
possible to create a similar system based on the other operating systems. But the possibilities
of such a system, its convenience and functionality depends on the components’ integration
degree into the system.</p>
    </sec>
    <sec id="sec-4">
      <title>4. Conclusions</title>
      <p>Our proposed conception to build workspace for teachers or lecturers is based on typical
software and hardware components which is already used by typical user and doesn’t require
specialized components, designed for this purpose. However, if there is such a requirement, it’s
easy to include additional components into the system by adding corresponding hyperlinks,
installation of corresponding software components and usage of special user interfaces. If a
lecturer has all the necessary didactic materials for completing the distance course, he is able to
create it, and doesn’t spend the time studying to use specialized software, just using possibilities
of the operating system. Such a system can be used by lectures and teachers to make their
teaching activities during regular classes and for distance education. The system is scalable and
easy to deploy and to implement. Of course, such a system doesn’t have the online experience,
but in exceptional cases, Microsoft 365 could be used, but with worse efectiveness and ease of
use.</p>
      <p>The system could be used in the initial phases of adaptation by non-experienced teachers,
including phases of migration to the remote or mixed educational process. The system is easy
to set up, learn, implement, but cannot be used as a single educational platform and should
be considered the initial phase before switching to specialized educational platforms, which
provide more features for students, teachers, managers.</p>
      <p>In the future, one can make a more detailed research of teacher’s digital workspace based on
an operating system and public cloud services, implement more tight integration between the
proposed system and specialized education platforms.
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