Characteristics  of Cloud Computing

Following are the  key properties of Cloud Computing [1]. Cloud Computing is user centric, task centric, powerful, accessible, intelligent,  and Programmable [1]. Whenever, user stores the documents, messages, images, or applications etc. they belong to the user. Therefore, Cloud Computing is said to be user centric. If the focus of cloud Computing is on the task to be done for the  user needs, then it is said to be task centric [1]. According to David S. Linthicum [2] the five key characteristics of Cloud Computing are on-demand self-service, Ubiquitous network access, Location-independent, Rapid elasticity, and Pay-per-use [2]. William Voorsluys et al. [3] provide a cloud computing model with features  that satisfy the expectations of consumers. These features are self-service, per-usage metered and billed, elastic, and customizable [3].
Thus, the cloud computing is user and task centric, powerful, accessible, intelligent,   programmable. It provides on-demand self-service, ubiquitous network access, rapid elasticity,  customizability, and pay-per-use model and is  also location-independent.   

 

 

References

 

[1] Michael Miller, "Beyond the Desktop: An Introduction to Cloud Computing," In: Cloud Computing: Web-Based Applications That Change the Way You Work and Collaborate, Pearson Education, Inc., pp 7 - 21, 2009.
[2] Linthicum David S. "Where We Are, How We Got Here, and How to Fix It", In: Cloud Computing and SOA Convergence in Your Enterprise: A Step-By-Step Guide, First Edition, published by Pearson Education, Inc, publishing as Addison-Wesly Professional, pp 1-19, 2010.
[3] William Voorsluys,  James Broberg and Rajkumar Buyya, "Introduction to Cloud Computing," In: Cloud Computing: Principles and Paradigms, Edited by  Rajkumar Buyya, James Broberg and Andrzej Goscinski , Publisher, John Wiley and Sons, Inc.,  New Jersey, pp 3-41, 2011.