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1. The Applied Research of Cloud Computing Platform Architecture
In the E-Learning Area
Zhang Guoli Liu Wanjun
School of Electronic Information Engineering School of Software
Liaoning Technical University Liaoning Technical University
Hu Ludao, Liaoning Hu Ludao, Liaoning
e-mail: zgl_lesli@126.com e-mail: zgl_lesli@126.com
Abstract—This paper firstly introduces the characteristics of cooperation, resource sharing and long learning services and
the current E-Learning, and then analyzes the concept and other functions.
characteristics of cloud computing, and describes the
architecture of cloud computing platform; by combining the II. CHARACTERISTICS OF E-LEARNING
characteristics of E-Learning and learning from current major E-Learning or Electronic Learning, is translated as
infrastructure approach of cloud computing platform, this
"digital (based) Learning", "electronics (based) Learning",
paper structures a relatively complete set of integration and
use in one of the E-Learning platform, puts the cloud
"network (based) learning", etc. The variety of perspectives
computing platform apply to the study of E-Learning, and of different translations: First, it emphasizes an Internet-
focus on the application in order to improve the resources' based learning; second, to emphasize electronic; third, to
stability, balance and utilization; under the conditions, this emphasize on E-Learning in joining digital content and
platform will meet the demand for the current teaching and network resources together, emphasize using technology to
research activities, improve the greatest value of the E- transform and guide the education. Some experts and
Learning. scholars on the E-Learning gives a more comprehensive
explanation: "E-Learning uses the Internet or other digital
Keywords-E-Learning; Cloud computing; Architecture; content for learning and teaching activities, which takes full
Teaching Resources Integration advantage of modern educational technology provided with a
new mechanism of communication and resource-rich
I. INTRODUCTION learning environment to achieve a new way of learning "[2].
Among them, the key factors of E-Learning are reusing,
E-Learning as an important mode of learning today, plays sharing resources and interoperability.
an important role in creating a good learning environment of Compared with traditional teaching methods, E-learning
personalization and being well adapted to the current is a good carrier of the content. Through a variety of teaching
education model no matter when and where can, it also resources effectively organizing, sequencing, processing, it
supplies with a convenient communication environment and forms a web-based teaching and better than traditional
rich resources for learners. However, the current E-Learning teaching and learning environment, and is able to take full
infrastructure is not yet complete[1], does not adequately advantage of a variety of teaching resources. At the same
provide for the E-Learning system dynamic allocation of the time, E-learning for teachers and students, between students
necessary computing and storage capacity; and the majority and students provides an interactive learning environment
of E-Learning system being used was not well interacted, and it can effectively enhance students’ critical thinking and
shared data with the others; and as knowledge has not been analytical skills, develop students self-learning ability. From
processed by systematic arrangement ,digestion and the perspective of teaching resources, E-Learning is open.
absorption, it leads to duplication of teaching resources, E-Learning for learners provides rich learning resources and
construction and low utilization, so that the information selects learning materials and learning opportunities. This
resources in distance education become isolated island on the feature makes online education has more options than
network. In this context, a new type of service computing traditional education [3].
model----cloud computing platform for E-Learning provides
the required information technology, so good compatibility III. CLOUD COMPUTING
for information technology; and the cloud computing
platform also provides the necessary foundation for A. The concept of cloud computing
integration of platform and technology environment for a In IBM’s technical white paper, “cloud computing” [4] is
variety of scattered of teaching resources, under the existing defined as: “Cloud computing term is used to describe both a
conditions as much as possible to meet the demand of the system platform and a type of application. A cloud
teaching, research activities for resources. Moreover, cloud computing platform is to be deployed dynamically on-
computing for the E-Learning provides new ideas and demand, configuration, reconfigure and deprovision, and so
solutions to achieve interoperability between functional on. In the cloud computing platform, the server can be
modules of the resources and systems, highlighting physical servers or virtual servers. A high-level calculation
978-1-4244-5586-7/10/$26.00 C 2010 IEEE
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2. cloud usually contains a number of other computing
resources, such as storage area networks, network devices,
firewalls and other security equipment. In describing the
application of cloud computing, it describes a scalable
application through the Internet. Any user can access a cloud
computing application through appropriate equipment and a
standard browser.”
In cloud computing, the applications needed by users are
not run on users’ personal computers, mobile phones and
other terminal equipment, but on a large-scale cluster of
servers running on the Internet. The user does not deal with
the data stored locally, but stored in the Internet data center
inside. The normal operation of management and
maintenance of these data center is taken charge of
enterprises which provide cloud computing services, and
ensure strong enough computing power and storage space for
the users. At any time and any place, any user can connect to
the Internet terminals. Therefore, whether businesses or
individuals, they can achieve on-demand in the clouds with
the use. Figure 1. System Architecture Model of Cloud Computing Platform
B. The characteristics of cloud computing
There, the Based management system layer is mainly to
The features and advantages of Cloud computing are: solve the sharing of computing resource, it can be used as the
x Powerful computing and storage capacity. Cloud E-learning resource library. It includes hardware, storage,
computing locates the computing and data in a large operating system and some other IT infrastructure and
number of distributed computers, the sea of clouds in resource pool. It uses the hardware and software
the tens of thousands of computers is to provide virtualization technology, coordinating action between the
powerful computing power and huge data storage multi-level frameworks, to ensure stability and reliability of
space, put the “cloud” as a service available to users infrastructure. At the same time it provides the basic network
via the Internet. supported environment and provides the basic realization
x High availability. Through the integration of mass environment of service-oriented architecture, but also
storage and high-performance computing power, supplies the computing and storage capacity for the higher
clouds can provide a higher quality of service. Cloud level. This layer ensures scalability and efficient use of
computing system can automatically detect the node resources for the cloud computing platform, provides
failure and exclude it, do not affect the normal computing resource, memory resource and data storage
operation of the system. resource for the cloud computing application.
x High security. In the cloud computing model, data is The Shared service interface layer is mainly to solve the
storied intensively. Relying on one or more data manner in which the external provision of services, presents
center, the managers manage the unified data, a powerful, high scalability, high availability of distributed
allocate the resources, balance load, deploy the applications for the users. And it is the Based management
software, control security, and do the reliable real- system layer’s network expansion, involving unified
time monitoring, thus guarantee the users’ data management, distributed scheduling and security controls for
security to the greatest possible degree. large amounts of data or computing resources. This layer is a
x Virtualization. Virtualization is the most important software system of an actual run of storage, maintenance and
characteristics of cloud computing. Each application provision of data, it is a collection of objects of storage
deployment environment and physical platform is medium, processing and management system, and it is the E-
not related. It is managed, expensed, migrated, and learning web development/resource integration platform. In
backup through virtualization platform. It put the addition to the content network storage and maintenance, this
underlying hardware, including servers, storage and layer also provides standard interfaces and content of the
networking equipment, comprehensive virtualization, API for the higher layer. When resources in the library have
in order to build a resources pool of shared, a rich accumulation and a certain amount of knowledge
distributed on-demand. systems, there is a need for resources package to form an
independent resource platform to the upper access.
C. The system architecture of cloud computing platform
Access layer is the use of cloud computing means to
The architecture of Cloud computing platform can be achieve some specific applications; it is the last application
divided into three layers, from the bottom to top it is platform to supply service for customer. It can divide into
followed by Based management system layer, Shared different application areas according to the specific needs of
Service Interface Layer and Access Layer[5][6]. The customers, such as office software service, personal space-
architecture model is shown in Figure 1.
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3. based service, and e-commerce and so on. At this level, Infrastructure layer is composed of information
cloud computing provides more convenient access to the infrastructure and teaching resources. Information
E-learning resources. infrastructure contains Internet/Intranet, system software,
information management system and some common
IV. APPLICATION OF ARCHITECTURE BASED ON CLOUD software and hardware; teaching resources is accumulated
COMPUTING PLATFORM ON E-LEARNING mainly in traditional teaching model and distributed in
E-Learning is not simply using the Internet to learn. It different departments and domain. Infrastructure layer is the
provides the solutions containing the technology of system place of management information pool that contains kinds of
standardization and management means. On cloud electronic resource, digital library, courseware library and
computing platform, network technology, modern equipment and facilities information database. Under cloud
communication technology, information organization computing model, the layer provides management
technology and the technology of information management information for upper layer’s resource consolidation. The
systems should be made full use of for the building of E- scheduling, combination and utilization of the teaching
Learning. A teaching platform can be built by way of open resources are implemented according to the consolidation
architecture and modular design in which teaching resources results of the management information.
are shared in high degree, communication is extremely The function of the layer of platform integration is to
smooth, and cross-platform operations can be executed. a integrate varieties of resources belonged to different
collection of a variety of media and new learning features, organizations and different platforms in infrastructure layer.
teaching tools. According to the system architecture based on These integrated resources form the basis of teaching
cloud computing platform and the feature of E-Learning, the activities. The dispersed, isolated and small-scale teaching
application of the architecture on E-Learning is discussed resources are managed in different way using cloud
from the perspective of hierarchy architecture. computing model in order to implement the share of teaching
The application of the system architecture based on cloud resources. The integration of teaching resources is achieved
computing platform on E-Learning is composed of three mainly by data warehouse, data mining and information
layers [7] [8]: Infrastructure layer of E-Learning platform, organization technology and combined with scientific
Layer of platform integration and Application layer. The management theory. The layer of platform integration also
architecture is shown as figure 2. provides the interface of teaching resources managers, users
and the Application layer. It is the displaying platform of
resource consolidation results.
Application layer is the specific applications of
integration the teaching resources in the cloud computing
model, including interactive courses and sharing the teaching
resources. The interactive programs are mainly for the
teachers, according to the learners and teaching needs, taken
full advantage of the underlying information resources after
finishing made, and the course content as well as the
progress may at any time adjust according to the feedback,
and can be more effectiveness than traditional teaching.
Sharing of teaching resources include teaching material
resources (such as equipment facilities), teaching
information resources (such as digital libraries, information
centers), as well as the full sharing of human resources. It
can achieve overall scheduling, allocating and utilization of
the most teaching resources; improve the teaching efficient
use of resources.
By then, users only need an Internet web browser or
mobile phone and other mobile devices to get the interactive
experience, mobility and storage services. In the cloud
computing model, E-learning service and data can be shared
within the framework to the maximum to avoid the
duplication of educational information system’s development.
V. CONCLUSIONS
The E-Learning platform in the cloud computing model
is based on the web, integrating text, graphics, video and
Figure 2. Cloud computing platform system architecture for E-Learning other multi-media resources, so it can create a good learning
Structural model environment for learners. At the same time, it uses a large
number of the current-date information technology to
manage the traditional teaching resources integrate in order
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4. to improve the utilization rate of resource. The advantage of improvement of the quality of teaching and learning
cloud computing platform architecture applied to E-Learning activities for changing the pattern of teaching.
is mainly reflected in: (1) the cost of education information
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