Authors: Juha Puttonen Andrei Lobov Maria A Cavia Soto José L Martinez Lastra
Publish Date: 2016/11/04
Volume: 30, Issue: 2, Pages: 687-700
Abstract
Cloud computing is an information technology paradigm enabling companies to sell computing resources more dynamically Software and hardware are now commodities leased on demand Because computer systems leased from a cloud service provider virtual machines are typically connected to internet they can host web services which are frequently components of service oriented architectures SOAs Such architectures have recently been adopted in factory automation as they allow systems to reach high levels of decentralization and loosecoupling SOAbased Factory automation systems combine physical production equipment with web services that belong to the information processing cyber domain and they are therefore highly cyberphysical When some of the services are deployed on cloud resources SOAbased factory automation systems can be classified cloudbased cyberphysical systems Each service in such a system is typically able to perform rather simple atomic operations whereas achievement of complex goals requires that the services be composed to collaboratively carry out workflows This article investigates the use of cloud resources in automatic service workflow composition To facilitate the acquisition and utilization of cloud resources a system of two specialized web services is proposed The system includes a web service that dynamically deploys virtual machines to carry out planning processes thereby exhibiting artificial intelligence Finally this paper demonstrates the integration of the system with a previously proposed semantic web service composition framework
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