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In a model-driven service-oriented architecture (SOA), the services are in large parts generated from models. To facilitate monitoring, governance, and self-adaptation the information in these models can be used by services that monitor, manage, or adapt the SOA at runtime. If a service for monitoring, management, or adaptation in an SOA is dependent on models, and the metamodel changes, usually the...
Cost and competitive pressures are forcing business organizations to reuse assets from repositories, rather than develop them from scratch. But this has been hampered by some issues that have not been addressed so far. First, there is a lack of a mechanism for the representation of business process assets as variants and versions in repositories. Second, there is no formal means to compare between...
One of the key concepts of service-oriented computing is dynamic binding which favors on-demand integration of services into a running system. Companies can outsource tasks to external partners by using their services and are able to switchover to alternatives at runtime. However, this flexibility comes ata high cost because it complicates the testing process significantly. The major problem with...
Today's ubiquitous internet access has opened new opportunities for mobile workers. By using portable devices, the workers are not only able to access their company's data and/or services from everywhere, but are also offering their own services for being accessible on-demand. The result is on the one hand a higher flexibility, in terms of coordination, but on the other hand poses various challenges...
This paper addresses one of the major problems of SOA software development: the lack of support for testing complex service-oriented systems. The research community has developed various means for checking individual Web services but has not come up with satisfactory solutions for testing systems that operate in service-based environments and, therefore, need realistic testbeds for evaluating their...
Web services and service-oriented architecture (SOA) have become the de facto standard for designing distributed and loosely coupled applications. Many service-based applications demand for a mix of interactions between humans and Software-Based Services (SBS). An example is a process model comprising SBS and services provided by human actors. Such applications are difficult to manage due to changing...
Single professionals and small companies come together and form virtual communities to compete with global players. In these collaboration networks, the actual business partners are discovered and alliances formed on demand. However, it is impossible for single members to keep track of the dynamics in large-scale networks. With the wide adoption of service-oriented architectures (SOA), interactions...
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