kura-kura keyboard

This is a summary of article "Cloud Computing – Issues, Research and Implementations" by Mladen A. Vouk

in the article Vouk begins with introduction of cloud computing is a step in the evolution of on-demand information technologies services and product, Vouk explain the key differentiating element of a successful information technology (IT) is its ability to become a true, valuable, and economical contributor to cyber infrastructure. \

Vouk also speak about concept of workflowis represent a series of strucktured activities and computation that arise in information -assisted problem solving

The key Vouk claim in cloud computing is the user because the value of solution depends very much on the view it has of its end-user requirements and user catagories

in closing Vouk says “Cloud” computing builds on decades of research in virtualization, distributed computing, utility computing, and, more recently, networking, web and software services. It implies a service-oriented architecture, reduced information technology overhead for the end-user, great
flexibility, reduced total cost of ownership, on demand services and many other things.

Cloud Computing – Issues,

Research and Implementations

Mladen A. Vouk

Introduction

“Cloud computing” is the next natural step in

puting embraces cyberinfrastructure, and builds

the evolution of on-demand information tech-

upon decades of research in virtualization, dis-

nology services and products. To a large extent,

tributed computing, “grid computing”, utility

cloud computing will be based on virtualized

computing, and, more recently, networking,

resources.

web and software services. It implies a service-

Cloud computing predecessors have been around

oriented architecture, reduced information tech-

for some time now [1, 12, 15, 17, 18, 24, 29, 30,

nology overhead for the end-user, greater flex-

35, 40], but the term became “popular” some-

ibility, reduced total cost of ownership, on-

time in October 2007 when IBM and Google an-

demand services and many other things.

nounced a collaboration in that domain [27, 22].

This was followed by IBM’s announcement of

the “Blue Cloud” effort [23]. Since then, every-

2.1. Cyberinfrastructure

one is talking about “Cloud Computing”. Of

course, there also is the inevitable Wikipedia

“Cyberinfrastructure makes applications dra-

entry [45].

matically easier to develop and deploy, thus

expanding the feasible scope of applications

This paper discusses the concept of “cloud”

possible within budget and organizational con-

computing, some of the issues it tries to address,

related research topics, and a “cloud” imple-

straints, and shifting the scientist’s and engi-

mentation available today. Section 2 discusses

neer’s effort away from information technology

concepts and components of “cloud” comput-

development and concentrating it on scientific

ing. Section 3 describes an implementation

based on Virtual Computing Laboratory (VCL)

“Cloud” computing – a relatively recent term, builds on

decades of research in virtualization, distributed com-

technology. VCL has been in production use at

puting, utility computing, and more recently networking,

NC State University since 2004, and is a suitable

web and software services. It implies a service oriented

vehicle for dynamic implementation of almost

architecture, reduced information technology overhead

for the end-user, great flexibility, reduced total cost of

any current “cloud” computing solution. Sec-

ownership, on-demand services and many other things.

tion 4 discusses “cloud”-related research and

This paper discusses the concept of “cloud” computing,

engineering challenges. Section 5 summarizes

some of the issues it tries to address, related research

and concludes the paper.

Cloud Computing

A key differentiating element of a successful

information technology (IT) is its ability to be-

1. Introduction

come a true, valuable, and economical contrib-

utor to cyberinfrastructure [4]. “Cloud” com-