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Cloud computing has become one of the key considerations both in academia and industry. Cheap, seemingly unlimited computing resources that can be allocated almost instantaneously and pay-as-you-go pricing schemes are some of the reasons for the success of Cloud computing. The Cloud computing landscape, however, is plagued by many issues hindering adoption. One such issue is vendor lock-in, forcing...
Business-to-Business (B2B) workflow/service interoperation across Virtual Organisations (VOs) brings about novel business scenarios. In these scenarios, parts of workflows (or services) corresponding to different partners can be aggregated in a producer-consumer manner, leading to hierarchical structures of added value interpreted as service value chains. Service Level Agreements (SLAs), which are...
This paper presents the quality factors of web services with definition, classification, and sub-factors for interoperability and manageability. In SOA systems, service consumers and service providers are usually placed in different ownership domains. They are also developed independently on various platforms and loosely-coupled by network. Services are consumed generally without direct management...
Service Oriented Architecture (SOA) is not only an architecture, rather it is a relationship between the service provider, broker and user. Designing middleware platforms for this architecture really helps in achieving interoperability, loose coupling and high efficiency especially for applications running in heterogeneous environments. The job of an SOA middleware is to cater for the functional properties...
Service-oriented architecture constitute a key technology for providing interoperability among heterogeneous systems, and integrating inter-organization applications in a loosely coupled fashion. However, the rapid growth of Web Services on the Internet makes services discovery become harder. Quality of Service is the key factor to differentiate web services with same functionality. In order to distinguish...
This paper presents the quality factors of web services with definition, classification, and sub-factors for interoperability and manageability. In SOA systems, service consumers and service providers are usually placed in different ownership domains. They are also developed independently on various platforms and loosely-coupled by network. Services are consumed generally without direct management...
Road co-operative systems based on vehicles to vehicles (V2V) and vehicles to road Infrastructure (V2I) communications are using mature technologies and protocols being under standardization in Europe and worldwide. Such technologies and protocols may give birth to many societal and business ITS applications providing innovative customer services. An important step forward to be planed is the Quality...
This paper follows two goals, first, to provide an insight on the research in the area of semantic workflows for public administrations, and second to present an on-demand service oriented approach on knowledge provisioning for actors in the e-government processes. Results of the research in the area of semantic workflows will be presented in application scenarios of two EC e-government research projects,...
Service-oriented architecture (SOA) has become an increasingly popular mechanism for achieving business agility and reuse. However, organizations implementing SOA-based solutions are facing new implementation challenges related to validation and verification activities in an SOA environment, especially of runtime system quality attributes such as interoperability, security, reliability, and performance...
An increasing number of communication technologies in access and core segments of the network belonging to different providers and subject to different network design criteria are making networks complex and difficult to manage. In such networks it is also more difficult to guarantee requested levels of quality of service. Service oriented design can be the answer to problems facing the providers...
Service-oriented architecture (SOA) claims to facilitate the construction of flexible and loosely coupled business applications, and therefore is seen as an enabling factor for enterprise interoperability. The concept of service, which is central to SOA, is very convenient to address the matching of needs and capabilities in enterprise collaborations. In order to satisfy more demanding needs or to...
With the rapid growth of large enterprise networks, capacity and performance management issues are becoming increasingly important to both business organizations and the telecommunication industry. Capacity and performance management techniques and methods provide guidance on how to plan, justify and manage network resources. Inappropriate planning for capacity and performance may lead to wasted resources...
Internet protocol television (IPTV), one of the most emerging services, offers multimedia streaming services with security, reliability, and relevant quality of service (QoS)/quality of experience (QoE). It provides added values to all the involving players including customers and also brings technical and business challenges to those players. For IPTV services, we expect to adopt the next generation...
Like RM-ODP [1], enterprise architecture (or EA for short) has its own perspectives as a basic construct for its architecture definition to represent areas of concern. In this paper, difference between RM-ODP and one concrete example EA, and applicability of Use of UML for ODP system specifications [2] (or UML4ODP in short) standard to the example EA, are discussed. Several additional diagrams that...
Current fashion systems to interconnect large software architectures are moving toward SOA based solutions. This new paradigm for designing system can be improved, in our opinion, by using semantics. Semantics can a play a main role in boosting interoperability thanks to current technologies to express knowledge and to describe semantic Web services (SWS). This paper tackles the provision of a Software...
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