WWW Service model, BBS and e-mail service model. On-site backup pros, on-site backup cons, cloud-based backup pros, cloud-based backup cons use for backup for digital data. User can access digital library from anywhere and anytime with the help of cloud computing. Cloud Computing architecture comprises of many cloud components, which are loosely coupled.

1. Koushik Pathak
MLIS in Digital Library
Jadavpur University
Kolkata -700032
By

2. Cloud computing
Cloud computing is a internet based
computing system where virtual shared
servers provided software, infrastructure,
devices and other digital resources and hosting
to customers on a pay-as-you-use basis.
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3. Objectives of the study
 To define the concept of cloud computing.
 To find out the types of cloud computing uses for data storage in
digital library.
 To define user service model in digital library.
 To discover the application of cloud computing in digital libraries.
 To analyze the functional components of digital libraries.
 To discover the architecture of cloud computing in digital libraries.
 To judge the usage of cloud computing for digital libraries.

4. Methodology
In this research theoretical methods are
used for information collections. Collect
data and information from national as well
as international esteemed research journal
and various recognized websites. In this
paper represent few points for the
utilizations of cloud computing in digital
library.

5. Types of cloud computing
for data storage
• Private cloud
• Hybrid cloud
• Public cloud
•Community cloud
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6. User service model in
digital library
 WWW service model.
 File transfer protocol service model.
 Bulletin board service model.
 E-mail service model.

7. Attributes of cloud computing in
digital library
 Agility
 Security
 Management of cloud activities
 Multitenancy
 Reliability and resiliency
 Elasticity and scalability
 Standardized interfaces
 Self service model

8. Applications of cloud computing
in digital library
 Improved access
 Improved preservation
 Wider access
 Improved information sharing
 File storage
 Backup
 Website hosting

9. • User interaction interface
• Service catalogue
• System management
• Monitoring and metering
• Servers
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10. Advantages of cloud computing
in digital library
• Flexibility and innovation
• User centric
• Openness
• Transparency
• Interoperability
• Representation
• Availability anytime anywhere
• Connect and Converse
• Create and collaborate
• Cost saving.

11. Findings of the study
After analyzing all information I got some findings. -
 Public clouds, private clouds, and hybrid clouds are used
for digital data storage.
 There are three service model uses in digital library like FTP
service model, WWW Service model, BBS and e-mail service model.
 Cloud computing mainly use for data storage, data backup and any
time user service.
 On-site backup pros, on-site backup cons, cloud-based backup pros,
cloud-based backup cons use for backup for digital data.
 Front end, Back end architecture use in cloud computing for digital
library.

12. Conclusion
Digital libraries are very important sources of
well-organized structured digital information.
With the help of cloud computing digital library
services have become more easy, user-centric and
more effective. Huge number of data, information
can be stored with the help of cloud computing.
Users are taking advantages of cloud based
services especially in digital libraries. Cloud
computing helps in sharing of computing power; it
can help us to move towards IT world and library
greener.