Panagiotis Gouvas

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This paper describes two approaches for semantically-assisted design of collaborative business processes in intra-and inter-enterprise application integration scenarios. Both approaches rely on the ENterprise Integration Ontology (ENIO) that resolves structural heterogeneities of different business applications on the data and functional level.(More)
If we try to increase the level of automation in Business-to-Business Enterprise Application Integration (EAI) scenarios, we confront challenges related to the resolution of data and message heterogeneities – that traditional, syntactic EAI technologies are weak to solve, as they miss the documentation of the semantics related to the interfaces and the data(More)
Cloud Platform as a Service (PaaS) is a novel, rapidly growing segment in the Cloud computing market. However, the diversity and heterogeneity of today’s existing PaaS offerings raises several interoperability challenges. This introduces adoption barriers due to the lock-in issues that prevent the portability of data and applications from one PaaS to(More)
Cloud Platform as a Service (PaaS) is a rapidly growing IT paradigm which enables software developers to deploy applications without the burden of software platform maintenance. Currently, the PaaS market is dominated by a few providers that promote incompatible standards. This introduces adoption barriers that prevent the interoperability between(More)
The implementation of service-oriented device architectures (SODA) suffers from restrictions that are imposed by the use of existing syntactic technologies. Related problems include data and message-level heterogeneities among interoperating services, insufficient search and discovery of exposed services and inadequate web process composition. In this paper(More)
Athanasios Bouras, Panagiotis Gouvas, Dimitrios Kourtesis, Gregoris Mentzas 1 Institute of Communication and Computer Systems, National Technical University of Athens, 9, Iroon Polytechniou Str., 15780 Zografou, Athens, GREECE {bouras, pgouvas, gmentzas}@mail.ntua.gr 2 SEERC South East European Research Centre, A Research Centre of the University of(More)
If we try to increase the level of automation in enterprise application integration (EAI) scenarios, we confront challenges related to the resolution of data heterogeneities, service discovery and process composition. In this paper, we propose the enterprise interoperability ontology (ENIO) that provides a shared, common understanding of data, services and(More)
As the number of cloud service providers grows and the requirements of cloud service consumers become more complex, the latter will come to depend more and more on the intermediation services of cloud service brokers. Continuous quality assurance and optimisation of services is becoming a mission-critical objective that many consumers will find difficult to(More)
Enterprises increasingly recognize the compelling economic and operational benefits from virtualizing and pooling IT resources in the cloud. Nevertheless, the significant and valuable transformation of organizations that adopt cloud computing is accompanied by a number of security threats that should be considered. In this paper, we outline significant(More)