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Displaying 1-10 out of 10 total
Cost-Driven Optimization of Complex Service-Based Workflows for Stochastic QoS Parameters
Found in: 2012 IEEE 19th International Conference on Web Services (ICWS)
By Dieter Schuller,Ulrich Lampe,Julian Eckert,Ralf Steinmetz,Stefan Schulte
Issue Date:June 2012
pp. 66-73
The challenge of optimally selecting services from a set of functionally appropriate ones under Quality of Service (QoS) constraints -- the Service Selection Problem -- has been extensively addressed in the literature based on deterministic parameters. In ...
 
Evaluating the QoS Impact of Web Service Anonymity
Found in: Web Services, European Conference on
By André Miede, Ulrich Lampe, Dieter Schuller, Julian Eckert, Ralf Steinmetz
Issue Date:December 2010
pp. 75-82
Web services enable the collaboration across organizational boundaries and, thus, are a powerful technology for implementing global Service-oriented Architectures, i.e., the Internet of Services. Despite typical security mechanisms such as message encrypti...
 
Study and Comparison of Adaptation Mechanisms for Performance Enhancements of Mobile Web Service Consumption
Found in: Services, IEEE Congress on
By Apostolos Papageorgiou, Jeremias Blendin, André Miede, Julian Eckert, Ralf Steinmetz
Issue Date:July 2010
pp. 667-670
Mobile Web services lie on the intersection of two big IT trends, namely Service-oriented Architectures (SOA) and mobile applications. So, their usage is likely to expand dramatically in the next years. However, the heavyweight nature of service-orientatio...
 
LOG4SWS.KOM: Self-Adapting Semantic Web Service Discovery for SAWSDL
Found in: Services, IEEE Congress on
By Stefan Schulte, Ulrich Lampe, Julian Eckert, Ralf Steinmetz
Issue Date:July 2010
pp. 511-518
In recent years, a number of approaches to semantic Web service matchmaking have been proposed. Most of these proposals are based on discrete and thus relatively coarse Degrees of Match (DoMs). However, different basic assumptions regarding the generalizat...
 
QoS-Aware Service Composition for Complex Workflows
Found in: Internet and Web Applications and Services, International Conference on
By Dieter Schuller, Julian Eckert, André Miede, Stefan Schulte, Ralf Steinmetz
Issue Date:May 2010
pp. 333-338
In Service-oriented Architectures, business processes are realized by composing loosely coupled services. With the ongoing success of Web services technologies, the invocation of Web services goes beyond enterprises’ borders. So, besides implementing requi...
 
Enhancing Availability with Self-Organization Extensions in a SOA Platform
Found in: Internet and Web Applications and Services, International Conference on
By Apostolos Papageorgiou, Tronje Krop, Sebastian Ahlfeld, Stefan Schulte, Julian Eckert, Ralf Steinmetz
Issue Date:May 2010
pp. 161-166
The availability and reliability of Service-oriented architectures (SOA) depends on two factors: On the one hand, the availability and reliability of the services that provide a certain business functionality and on the other hand the services that make up...
 
The Impact of Service Pricing Models on Service Selection
Found in: Internet and Web Applications and Services, International Conference on
By Julian Eckert, Deniz Ertogrul, Apostolos Papageorgiou, Nicolas Repp, Ralf Steinmetz
Issue Date:May 2009
pp. 316-321
Pricing of services, especially in a SOA and Grid environment with contractual relationships gain importance in recent years. For the resource planning, i.e. the allocation and orchestration of existing services, service pricing has a major influence. An o...
 
Resource Planning Heuristics for Service-Oriented Workflows
Found in: Web Intelligence and Intelligent Agent Technology, IEEE/WIC/ACM International Conference on
By Julian Eckert, Deniz Ertogrul, André Miede, Nicolas Repp, Ralf Steinmetz
Issue Date:December 2008
pp. 591-597
Resource allocation and resource planning, especially in a SOA and Grid environment, become crucial. Particularly, in an environment with a huge number of workflow consumers requesting a decentralized cross-organizational workflow, performance evaluation a...
 
Worst-Case Workflow Performance Optimization
Found in: Internet and Web Applications and Services, International Conference on
By Julian Eckert, Stefan Schulte, Michael Niemann, Nicolas Repp, Ralf Steinmetz
Issue Date:June 2008
pp. 632-637
Performance evaluation and execution managementof service-oriented workflows became quite important inorder to avoid performance degradation. Performance measurement is crucial to ensure that workflow execution remains feasible and that SLA violations due ...
 
Bridging the gaps towards structured mobile SOA
Found in: Proceedings of the 7th International Conference on Advances in Mobile Computing and Multimedia (MoMM '09)
By Apostolos Papageorgiou, Bastian Leferink, Julian Eckert, Nicolas Repp, Ralf Steinmetz
Issue Date:December 2009
pp. 288-294
As the principle of service-orientation is gaining ground in a significant number of emerging solutions, the definition of standards coupled with the appearance of new architectures bring a new era in software development. New technologies enable the usage...
     
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