.

1. By
Mr. D. T. Mane,
Assistant. Professor,
Department of IT
Rajarambapu Institute of Technology
Sakharale, Sangli, MH- INDIA
CLOUD COMPUTING
Chapter 2:
Cloud Computing Models and
architecture

2. INDEX
1. NIST architecture
2. SOA architecture
3. Service models
4. Deployment models
5. Economics of the cloud
6. Open challenges

3. 2.1 NIST ARCHITECTURE
 Vendor neutral conceptual model
 Five primary actors were identified - Cloud Service, Consumer, Cloud Service
Provider, Cloud Broker, Cloud Auditor and Cloud Carrier

4. 2.1 NIST ARCHITECTURE
 primary goal
 Helps to establish cloud deployment
models
 NCCRAT-WG identified 5 major actors
 Cloud Service Consumer
 Cloud Service Provider
 Cloud Broker
 Cloud Auditor
 Cloud Carrier

5. 2.2 SOA ARCHITECTURE
 SOA that will allow people to move from one
cloud provider to another with ease
 SOA can provide the backbone to allow both
user front-end applications and enterprise
back-end servers to easily access cloud
services.
 Architectures based on different levels of
cloud computing
 Market-oriented architectures
 SOA – oriented architectures

6. 2.2.1 ISSUES WITH CURRENT CLOUD COMPUTING ARCHITECTURES
 Users are often tied with one cloud provider.
 Computing components are tightly coupled.
 Lack of Security and access control supports.
 Lack of common use supports.
 The importance of SOA to cloud computing
 the proper formation of the information systems
 need an architecture inside of the enterprise, such
as SOA, to make the most of cloud computing.
 You need some sort of architectural discipline with
guiding principles to document and organize your
architecture.

7. 2.2 SOA ARCHITECTURE

8. 2.5 ECONOMICS OF THE CLOUD
Explorecloud computing’s capacity to offer cost and
quality arbitrage to enterprises.
Identify factors affecting cloud computing growth
trajectory.
Identify the opportunities and threats to cloud
computing in India.
Explores the new trends in cloud computing.

9. 2.5.1 CLOUD COMPUTING – A MARKET PERSPECTIVE
 cloud computing analysis based on market
perspectives carried out using research papers,
survey reports, white papers and case studies.

10. 2.5.1 CLOUD COMPUTING – A MARKET PERSPECTIVE
Challenges are technical, business related, market
related and legal.

11. 2.5.1 CLOUD COMPUTING – A MARKET PERSPECTIVE
Technical and economical strengths of cloud
computing

12. 2.5.1 CLOUD COMPUTING – A MARKET PERSPECTIVE
Technical and economical strengths of cloud
computing

13. 2.5.1 CLOUD COMPUTING – A MARKET PERSPECTIVE
Technical and economical strengths of cloud
computing

14. 2.5.1 CLOUD COMPUTING – A MARKET PERSPECTIVE
Weaknesses or challenges of cloud computing

15. 2.5.1 CLOUD COMPUTING – A MARKET PERSPECTIVE
Weaknesses or challenges of cloud computing

16. 2.5 ECONOMICS OF THE CLOUD
The pay-as-you-go model offered by cloud providers. In
particular, cloud computing allows:
Reducing the capital costs associated to the IT
infrastructure .
Eliminating the depreciation or lifetime costs associated
with IT capital assets .
Replacing software licensing with subscriptions .
Cutting the maintenance and administrative costs of IT
resources

17. 2.5.1 CLOUD COMPUTING – A MARKET PERSPECTIVE
pricing models- we can distinguish three different
strategies that are adopted by the providers:

18. 2.6 CLOUD OPEN CHALLENGES
The most important ones:
Cloud definition
Cloud interoperability and standards
Scalability and fault tolerance
Security, trust, and privacy
Organizational aspects

19. REFERENCES
Books:
1. Rajkumar Buyya, “Mastering Cloud computing”, Mc Graw Hill Publication, ISBN-
978-1-25-902995-0, (Chapter 1 to 5).
2. Tim Mather, S. Kumaraswammy, S. Latif, “Cloud Security & Privacy”, SPD,O’REILLY,
ISBN- 978-0-596-80276-9 (Chapter 6).
WWW:
1. http://www.buyya.com/MasteringClouds/

20. …...THANK YOU…….