=Paper=
{{Paper
|id=Vol-2407/paper-11-119
|storemode=property
|title=
Resource management in distance and mobile education systems
|pdfUrl=https://ceur-ws.org/Vol-2407/paper-11-119.pdf
|volume=Vol-2407
|authors=Oxana N. Romashkova,Elena N. Pavlicheva
|dblpUrl=https://dblp.org/rec/conf/ittmm/RomashkovaP19
}}
==
Resource management in distance and mobile education systems
==
https://ceur-ws.org/Vol-2407/paper-11-119.pdf
102
UDC 519.87
Resource management in distance and mobile education
systems
Oxana N. Romashkova, Elena N. Pavlicheva
Department of Applied Informatics, Moscow City University
29 Sheremetevskaya str., Moscow, 127521, Russia
Email: ox-rom@yandex.ru, enpav@rambler.ru
The relevance of the study is due to the fact that the support of management information
processes of distance and mobile education is associated with the problem of effective distribu-
tion of system resources used in the transmission and processing of educational information.
Methods and models of pre-resource planning should be aimed at more efficient use of info-
communication data transmission environment with low bandwidth, as well as to solve the
problem of a limited number of simultaneous users (sessions) of the educational process.
The aim of the study: is a comprehensive analysis and development of methods of resource
management in the organization and operation of distance and mobile education systems.
Scientific novelty of research: formalization of information management processes in the
system of distance and mobile education, taking into account the resource constraints of the
educational system, the requirements of effective management.
The authors conducted a study of existing information systems that control distance
and mobile education. We proposed an improved integrated approach to the formation of
requirements and automation of modern systems of distance and mobile education.
Key words and phrases: information system, remote and mobile education, automation
of management.
Copyright © 2019 for the individual papers by the papers’ authors. Copying permitted for private and
academic purposes. This volume is published and copyrighted by its editors.
In: K. E. Samouylov, L. A. Sevastianov, D. S. Kulyabov (eds.): Selected Papers of the IX Conference
“Information and Telecommunication Technologies and Mathematical Modeling of High-Tech Systems”,
Moscow, Russia, 19-Apr-2019, published at http://ceur-ws.org
Romashkova O. N., Pavlicheva E. N. 103
1. Introduction
The processes of Informatization of society could not but affect the development
of educational systems. The use of modern network information technologies in the
educational process has greatly contributed to making learning as accessible, open and
popular as possible by the wider society. At the same time, training, initially associated
with the accumulation, transformation and replication of knowledge, that is, information,
the very content of its goals and objectives contributes to the development of new
services, the expansion of management, communication and information fields [1–4].
In the conditions of rapid development of methods and forms of training, the key
point of application of modern information and communication technologies, mechanisms
and controls should be the direction of automation of information processes of remote
network training [5, 6]. Among the factors that characterize the timeliness of such a
decision today can be called the rapid development of the global Internet in terms of
expanding the telecommunications field and management capabilities, the increasing
need for the transfer of bulk educational content, as well as the growth of computer
equipment in the education industry [7–10].
On the other hand, we note that the support of management information processes
of distance and mobile education is associated with the problem of effective distribution
of system resources used in the transmission and processing of educational information.
Methods and models of pre-resource planning should be aimed at more efficient use of
infocommunication data transmission environment with low bandwidth, as well as to
solve the problem of a limited number of simultaneous users (sessions) of the educational
process, which put the existing systems of distance and mobile learning.
2. Theoretical Study
The modern distributed educational system is characterized by an increase in the
variety of types of transmitted traffic in favor of the traffic of multimedia data, in
particular, widely used in the online form of distance and mobile learning.
A comprehensive solution to the problem of management of the educational system
is associated with the development of evidence — based methods to ensure effective
management of resources necessary to provide quality educational services and provide
support for a given quality of service, administration and adaptive management in
educational systems [11–13].
In contrast to the arbitrary distribution of infocommunication resources, a special
case is the management of resources in the systems and networks of remote and mobile
education. Information processes of distance and mobile learning are characterized by
determinism, poseansnoe loading, a certain consumption of network resources, which
allowed to use as a mathematical basis for solving the problems of the theory of the
schedule.
Additional significance and an indicator of the weak development of the topic is the
lack of comprehensive work on the management of a distributed system of distance and
mobile education in the presence of limited infocommunication resources. Studies aimed
at the creation and theoretical justification of these methods of resource optimization in
the organization of the educational process are in demand both at present and in the
foreseeable future of the development of educational systems [14–17].
3. Problem statement
To achieve the goal in the study were set and solved the following main tasks.
1. The analysis of the systems of distance and mobile education in terms of implemen-
tation of learning management and support of standards of formalized description
of educational content, scenarios and forms of learning. The classification of modern
systems of distance and mobile education on the basis of the level of support for
the requirements of standards.
104 ITTMM—2019
2. The analysis of models, structures of information management flows and traffic sys-
tems of distance and mobile education, taking into account the deterministic nature
of the broadcast of educational content through the channels of the educational
system.
3. The method of formalized description of educational content and learning algorithms
for use in the automated process of learning management and the development of a
model of traffic processing system in the system of distance and mobile education.
4. New conceptual and functional models of management in the system of distance
and mobile education, taking into account the resource limitations of the educa-
tional system, the transmission of educational data, the recommendations of the
architecture of technological educational systems, the requirements of effective
management, taxonomy levels of learning.
5. Algorithms of automated control of the learning process in the system of distance
and mobile education for different variants of the organization and parameters of
the educational process are developed.
6. Models and methods of dynamic management of infocommunication resources
distribution in the organization of management information process of distance
and mobile education are developed.
7. A set of mathematical models for the probabilistic evaluation of educational process
indicators to implement effective management of resources of distance and mobile
education, as well as methods of collection and processing of statistical data for
calculations using the proposed models.
8. Simulation experiments were performed to evaluate the results obtained in the
thesis.
4. Operating model
In General, the construction of software and hardware complex, is an organizational
and technical problem, in relation to which the choice of the method of playback of
online remote and mobile education, is associated with the solution of the little-studied
problem of formation of the organization of management of the broadcast of educational
information in real time.
In the organizational plan of formation of hardware and software complex of prepa-
ration and creation of courses is connected with a problem of formation of the corporate
portal intended for implementation of educational activity in a global network. As part
of such a portal can be divided into three main functional layers that determine the
effectiveness of its functioning [18, 19]:
– interface layer (communication layer), which establishes the expressive capabilities
of the portal in terms of obtaining, processing and reproduction of educational
information of a certain type;
– a layer of basic infrastructure (network layer), containing basic services that
work with the Internet, mail, video conferencing, management of data transfer
transactions; as well as support for security systems, administration services, etc.;
– application integration layer (functional layer) responsible for the content of the
portal.
Since the organization of information exchange is based on the client/server organi-
zation of information resources of the system (in which the process of data exchange
between the client and the portal becomes centralized), the content management of
the portal consists, firstly, in regulating the functioning of the application server and,
secondly, in determining the moments (priority) of information exchange, based on the
type and volume of traffic transmitted in comparison with the current load of technical
means employed in ensuring the appropriate information and communication exchange.
The task of managing the organization and control over the translation of educational
information is time-consuming, since the characteristics of communication channels can
vary depending on the territorial location of students and their technical capabilities.
Therefore, a preliminary analysis of the possible options for the distribution of the
Romashkova O. N., Pavlicheva E. N. 105
current bandwidth of communication channels, taking into account the qualitative and
quantitative characteristics of electronic training materials is a fundamentally important
stage, prior to the transfer and processing of information flows in the networks [20–22].
In this regard, it draws conclusions about the need for pre-planning the allocation
of network resources in a joint transfer of certain amounts of priority and non-priority
traffic, during the implementation of the interruptible and non-interruptible educational
work. The implementation of such a plan could be proactive redundancy of certain
channels (connection repackaging method) and/or traffic prioritization.
The main components of the organization of information management system of
distance and mobile education (SDME) are the task of discipline and algorithm of classes
in each of the disciplines, the number of students involved in the disciplines, as well as
the value of performance (resource intensity) of network technical means SDME. The
utilization means to characterize the adequacy of distributed SDME for the tasks.
Based on the results of the analysis of the structure, information and management
processes in the SDME was created a number of models and algorithms underlying the
management system of distance education. CA ERWin Process & Data Modeler tools
were used to develop the process models and database of the information system for
SDME management support. A functional model of each process of the network system
of distance education was built in the form of a set of elements — subprocesses that
interact with each other. Figure 1 shows the top-level context diagram of the functional
model.
Figure 1. Context diagram of the top level of the functional model
On the basis of the functional model the diagram of variants of use of processes of
functioning of information system of support of management of SDME was developed.
The next step is the development of algorithms for execution of the main processes.
Figure 2 shows the interaction algorithm of the “Create tools BEFORE” process.
Described database model implemented using IDEF1X methodologies and CASE-
tools CA ERWIN Data Modeler. The first step was to determine the entities and
relationships between them, identified in the course of a multidimensional analysis of
the subject area. ER-, KB-, FA- and T-models of the database were formed on the basis
of the identified relationships and data on the presence of key attributes of entities.
Based on the transformational database model of the SDME management support
system, a DBMS model was developed in the form of XML-code. The interpretation of
106 ITTMM—2019
Figure 2. The algorithm of interaction of the process “To Create tools SDME”
this code allowed us to obtain a database scheme in the format of DBMS 1C: Enterprise
at the physical level.
Thus, all the necessary models and algorithms were created to implement the
information system to support the management of SDME — an effective tool for the
distribution of infocommunication resources.
5. Conclusions
In the framework of the study the problem of assessing and improving the efficiency
of integrated resource management in a complex distributed socio-economic system —
the system of distance and mobile education is solved, and the following results have
scientific novelty and practical significance:
1. The analysis of the systems of distance and mobile education in terms of implemen-
tation of learning management and support of standards of formalized description
of educational content, scenarios and forms of learning. The classification of modern
systems of distance and mobile education on the basis of the level of support for
the requirements of standards.
2. The analysis and development of models, structures of management information
flows of distance and mobile education, taking into account the deterministic nature
of the broadcast of educational content in the segments of the educational system.
3. The developed method of the formalized description of the educational content and
algorithms of control of the learning process for use in the automated educational
process and in the development of management models for remote and mobile
learning.
4. New conceptual and functional models of resource management in the system of
distance and mobile education, taking into account the resource constraints of the
educational system.
Romashkova O. N., Pavlicheva E. N. 107
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