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Displaying 1-17 out of 17 total
Towards Living Inter-organizational Processes
Found in: 2013 IEEE 15th Conference on Business Informatics (CBI)
By Ruth Breu,Schahram Dustdar,Johann Eder,Christian Huemer,Gerti Kappel,Julius Kopke,Philip Langer,Jurgen Mangler,Jan Mendling,Gustaf Neumann,Stefanie Rinderle-Ma,Stefan Schulte,Stefan Sobernig,Barbara Weber
Issue Date:July 2013
pp. 363-366
Business Process Management (BPM) has gained significant adoption in practice for enabling organizations to increase their effectiveness, efficiency, and flexibility. This broad adoption has not only been fostered by a rich and well-established theory to m...
 
Workflow Scheduling and Resource Allocation for Cloud-Based Execution of Elastic Processes
Found in: 2013 IEEE 6th International Conference on Service-Oriented Computing and Applications (SOCA)
By Philipp Hoenisch,Stefan Schulte,Schahram Dustdar
Issue Date:December 2013
pp. 1-8
Today's extensive business process landscapes make it necessary to handle the execution of a large number of workflows. Especially if workflow steps require the invocation of resource-intensive applications or a large number of applications needs to be car...
 
Self-Adaptive Resource Allocation for Elastic Process Execution
Found in: 2013 IEEE 6th International Conference on Cloud Computing (CLOUD)
By Philipp Hoenisch,Stefan Schulte,Schahram Dustdar,Srikumar Venugopal
Issue Date:June 2013
pp. 220-227
Especially in large companies, business process landscapes may be made up from thousands of different process definitions and instances. As a result, a Business Process Management System (BPMS) needs to be able to handle the concurrent execution of a very ...
 
Fifty Shades of Grey in SOA Testing
Found in: 2013 IEEE 6th International Conference On Software Testing, Verification and Validation Workshops (ICSTW)
By Franz Wotawa,Marco Schulz,Ingo Pill,Seema Jehan,Philipp Leitner,Waldemar Hummer,Stefan Schulte,Philipp Hoenisch,Schahram Dustdar
Issue Date:March 2013
pp. 154-157
Testing is undisputedly a fundamental verification principle in the software landscape. Today's products require us to effectively handle and test huge, complex systems and in this context to tackle challenging traits like heterogeneity, distribution and c...
 
Plug-and-Play Virtual Factories
Found in: IEEE Internet Computing
By Stefan Schulte,Dieter Schuller,Ralf Steinmetz,Sven Abels
Issue Date:September 2012
pp. 78-82
Although virtual factories are a well-established approach to managing distributed, cross-organizational manufacturing processes, corresponding end-to-end IT support is still lacking. Service-oriented virtual factories use and extend well-known methods and...
 
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 ...
 
Scoresheet-based event relevance determination for energy efficiency in wireless sensor networks
Found in: Local Computer Networks, Annual IEEE Conference on
By Sebastian Zoller,Andreas Reinhardt,Stefan Schulte,Ralf Steinmetz
Issue Date:October 2011
pp. 207-210
As wireless sensor nodes are mostly battery-powered, energy-efficient operation is a necessity to use their confined energy budget optimally. This is especially true in the logistics domain, where timely and accurate monitoring of containers is required, w...
 
Enhancing the Caching of Web Service Responses on Wireless Clients
Found in: Web Services, IEEE International Conference on
By Apostolos Papageorgiou,Marius Schatke,Stefan Schulte,Ralf Steinmetz
Issue Date:July 2011
pp. 9-16
Contrary to simple Web content, standard Web services do not offer their clients the possibility to use cached information without the risk that it may be out-of-date. This feature has not been worth its costs in realistic Web service usage scenarios until...
 
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...
 
From Web Service Policies to Automatic Deviation Handling: Supporting Semantic Description of Reactions to Policy Violations
Found in: International Conference on Semantic Computing
By Stefan Schulte, Nicolas Repp, Dieter Schuller, Ralf Steinmetz
Issue Date:September 2009
pp. 312-317
In scenarios where Web services are involved, Quality of Service (QoS) parameters play an important role when it comes to service selection, service compositions, and run-time behavior of the execution environment, e.g. a workflow engine. Required or guara...
 
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 ...
 
The dark side of SOA testing: Towards testing contemporary SOAs based on criticality metrics
Found in: 2013 5th International Workshop on Principles of Engineering Service-Oriented Systems (PESOS)
By Philipp Leitner,Stefan Schulte,Schahram Dustdar,Ingo Pill,Marco Schulz,Franz Wotawa
Issue Date:May 2013
pp. 45-53
Service-Oriented Architectures (SOAs) have widely been accepted as the standard way of building large-scale, heterogeneous enterprise IT systems. In this paper, we explore the current limitations of testing contemporary SOAs, which are typically assemblies...
   
The dark side of SOA testing: Towards testing contemporary SOAs based on criticality metrics
Found in: 2013 5th International Workshop on Principles of Engineering Service-Oriented Systems (PESOS)
By Philipp Leitner,Stefan Schulte,Schahram Dustdar,Ingo Pill,Marco Schulz,Franz Wotawa
Issue Date:May 2013
pp. 45-53
Service-Oriented Architectures (SOAs) have widely been accepted as the standard way of building large-scale, heterogeneous enterprise IT systems. In this paper, we explore the current limitations of testing contemporary SOAs, which are typically assemblies...
   
Mobile Mobility: The Road User Information Systems of the Future
Found in: Proceedings of International Conference on Advances in Mobile Computing & Multimedia (MoMM '13)
By Stefan Schulte
Issue Date:December 2013
pp. 10-10
Within the last years, the availability of mobile Internet connections has been increased significantly. Nevertheless, the impact of this ubiquitous Web access has not arrived at road user information systems with a few exceptions for navigation systems or...
     
Adaptive matchmaking for RESTful services based on hRESTS and MicroWSMO
Found in: Proceedings of the 5th International Workshop on Enhanced Web Service Technologies (WEWST '10)
By Dieter Schuller, Melanie Siebenhaar, Ralf Steinmetz, Stefan Schulte, Ulrich Lampe
Issue Date:December 2010
pp. 10-17
Matchmaking -- i.e., the task of finding functionally suitable service offers based on a service request -- has only been addressed in the context of WS-* Web services. However, RESTful services are gaining increasing attraction and have been adopted by ma...
     
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