Migration from web services to cloud services

Abstract

Nowadays, Cloud Computing has emerged as a new model for hosting, managing and delivering services over Internet on demand. It is rapidly changing the landscape of information technology. It has three services models namely, Software as a Service (SaaS). Platform as a Service (PaaS). Infrastructure as a Service (IaaS) and four deployment models (Private Cloud, Community Cloud, Public Cloud, Hybrid Cloud). In this paper, we have presented a comparison study about two types of services namely, Web services and Cloud services with their environments (definitions, concepts, languages, discovery, etc.). The obtained results, from this comparison study, provide useful guidelines for the design of services and development. They also accelerate Cloud Computing from early prototypes to production systems.