Deterministic Model Investigation of Processes in a Heterogeneous E-Learning Environment

Abstract

The investigation of characteristics of access and use of resources in different distributed environments in the network space is aimed at determining optimal levels for the basic parameters of the supported processes. On the other hand, with the development of the possibilities of the digital space and the significant change in the level of informatization of the society, it is necessary to take the necessary measures to ensure secure access to information resources and in particular to the profiles of personal data. In this respect, the purpose of the article is to propose an organization of heterogeneous environment with resources stored in different places (own memories and cloud data centres). A general architecture and functionality of the main sub-systems are presented. Deterministic model investigation by using Petri Net apparatus based on preliminary formalization is provided to analyse the effectiveness of the processes for regulated and secure access to resources.

Stochastic Approach to Investigate Protected Access to Information Resources in Combined E-Learning Environment

“…The research is conducted on the basis of the author's procedure for organization of model investigation and presents a new extension to the applicability of the developed specialized program environment by using TryAPL2 to study processes at the macro-level. This determines the novelty of the proposal in this article which continues the investigation carried out in [13].…”

“…The defined possible risks for the processes in the combined e-learning space require the introduction of strict procedures to check the legitimacy of access and the specific rights to use a certain type of resources. This should be reflected even at the level of architectural design, as a generalized architectural model is proposed in [13]. Two interconnected, but relatively independent sub-systems are distinguished, between which the main procedures are distributed (Figure 2).…”

“…The purpose of this article is to extend the case discussed in [13] to investigate the processes of protected access and secure use of resources in e-learning spaces with heterogeneous structure. The architecture proposed there is based on combining traditional e-learning tools with the capabilities of social communications and cloud computing.…”

Investigation of communication parameters based on monitoring and statistical modelling

“…This necessitates choosing the appropriate method for the set specific goal and ensuring the stability and stability of the designed network [1]. The main tasks that should be solved could be described as following:  investigation of computer data processing [2];  architectural organization of the network infrastructure;  investigation of the system characteristics of node subnets;  analysis of network traffic and routing parameters [3],  investigation of remote access to distributed resources in the digital space [4];  specifying the level of service of user requests, etc. Each of them reflects on the correct maintenance of information resources in the network environment (network directory, files and databases, user mailbox, Webpage for presentation of information, etc.).…”