Page 44 - Enchiridion 4.0 program_EN

Strategic Partnerships for school education 2019-1-PL01-KA201-065137
Project: Teacher4.0 - comprehensive method of implementation of Industry 4.0
concept into didactic practice in primary and secondary schools

Sosinsky (2011) stipulates that in this sea of concepts, however, there is a generally accepted
consensus on two sets of models, which allow the classification of cloud services:

Implementation models - with reference to the form of ownership, location and management of
cloud infrastructure: public, private, hybrid, etc.

Service models - with reference to the types of services that are offered to customers through cloud
implementations: SaaS, PaaS, IaaS, etc.

The technical and scientific articles treat in a different order the analysis of implementation and
service models, some authors preferring to detail the services before the implementation models.
The order of presentation in this material is justified by the fact that in order to be able to deliver
services to consumers, suppliers need an implemented infrastructure.

The concept of the cloud has also captured the interest of large software companies as well as very
large corporations as well as regulators, research institutions and government agencies. Depending
on the origin of the amounts invested, the form of ownership and the nature of the clients, three
main models of cloud computing implementation have been delimited over time and a form that is
not yet very well regulated:

Public cloud - based on the investments of a large software company and intended for global
consumers regardless of size and field of activity;

Private cloud - based on the investments of a company or a conglomerate of vertical companies,
intended largely exclusively for consumers within the company;

Hybrid cloud - based on the use of services offered by the public cloud interconnected with internal
information entities, intended mostly for very large companies and aims to expand certain internal
processing capabilities in order to serve consumers within the company.

In the specialized articles we identify other forms of implementation of cloud technologies, the most
representative being that of community cloud but also derived forms such as: Distributed Cloud
Computing with reference to distributed information systems, governed by the principles and
characteristics of the cloud (Antonescu & Braun, 2014); inter-cloud architectures with reference to
methods and how to integrate services and resources between several public cloud providers and
several private clouds (Buyya, Ranjan, & Calheiros, 2010); multi-cloud architectures (Petcu, 2014)
with reference to the methods of management and operation of several cloud providers integrated
with private clouds.

CLOUD COMPUTING IN EDUCATION

Traditional forms of e-learning require significant investments for building appropriate IT
infrastructure and regular costs for maintaining, upgrading and managing hardware and software.
The increased costs for hardware and software are beyond the strength of the majority of schools
that have limited financial resources. Cloud computing is one of the global trends in ICT development

This project has been funded with support from the European
Commission. This communication reflects the views only of the
author, and the Commission cannot be held responsible for any
use which may be made of the information contained therein.