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Displaying 1-18 out of 18 total
Decision Support for the Migration of the Application Database Layer to the Cloud
Found in: 2013 IEEE 5th International Conference on Cloud Computing Technology and Science (CloudCom)
By Steve Strauch,Vasilios Andrikopoulos,Thomas Bachmann,Dimka Karastoyanova,Stephan Passow,Karolina Vukojevic-Haupt
Issue Date:December 2013
pp. 639-646
Migrating an existing application to the Cloud is a complex and multi-dimensional problem requiring in many cases adapting the application in significant ways. Looking specifically into the database layer of the application, i.e. the aspect providing data ...
 
On-demand Provisioning of Infrastructure, Middleware and Services for Simulation Workflows
Found in: 2013 IEEE 6th International Conference on Service-Oriented Computing and Applications (SOCA)
By Karolina Vukojevic-Haupt,Dimka Karastoyanova,Frank Leymann
Issue Date:December 2013
pp. 91-98
Service orientation is a mainstream paradigm in business applications and gains even greater acceptance in the very active field of eScience. In SOC service binding strategies have been defined to specify the point in time a service can be discovered and s...
 
Towards Collaborative, Dynamic and Complex Systems (Short Paper)
Found in: 2013 IEEE 6th International Conference on Service-Oriented Computing and Applications (SOCA)
By Vasilios Andrikopoulos,Santiago Gomez Saez,Dimka Karastoyanova,Andreas Weiss
Issue Date:December 2013
pp. 241-245
Service orientation has significantly facilitated the development of complex distributed systems spanning multiple organizations. However, different application areas approach such systems in domain-specific ways, focusing on particular aspects relevant on...
 
eScienceSWaT -- Towards an eScience Software Engineering Methodology
Found in: 2013 17th IEEE International Enterprise Distributed Object Computing Conference Workshops (EDOCW)
By Dimka Karastoyanova,Vasilios Andrikopoulos
Issue Date:September 2013
pp. 229-238
eScience is the field trying to provide IT support to scientists throughout the life cycle of scientific experiments. The major focus is on shortening the time to new discoveries and revealing knowledge about natural phenomena by providing software systems...
 
Flexible information design for business process visualizations
Found in: 2012 5th IEEE International Conference on Service-Oriented Computing and Applications (SOCA)
By Alexander Nowak,Dimka Karastoyanova,Frank Leymann,Andrej Rapoport,David Schumm
Issue Date:December 2012
pp. 1-8
Profound understanding of business processes is a key success factor for Business Process Management (BPM). As more and more analytical information like runtime data from process execution or statistical data from business intelligence are available, the p...
 
State propagation-based monitoring of business transactions
Found in: 2012 5th IEEE International Conference on Service-Oriented Computing and Applications (SOCA)
By Sebastian Wagner,Christoph Fehling,Dimka Karastoyanova,David Schumm
Issue Date:December 2012
pp. 1-8
Business analysts want to monitor the status of their business goals in a business-centric manner, without any knowledge of the actual implementation artifacts that contribute to achieve these goals. Business transactions are one means to represent busines...
 
Quality of data driven simulation workflows
Found in: 2012 IEEE 8th International Conference on E-Science (e-Science)
By Michael Reiter,Uwe Breitenbucher,Oliver Kopp,Dimka Karastoyanova
Issue Date:October 2012
pp. 1-8
Simulations are characterized by long running calculations and complex data handling tasks accompanied by non-trivial data dependencies. The workflow technology helps to automate and steer such simulations. Quality of Data frameworks are used to determine ...
 
Service-based integration of human users in workflow-driven scientific experiments
Found in: 2012 IEEE 8th International Conference on E-Science (e-Science)
By Dimka Karastoyanova,Dimitrios Dentsas,David Schumm,Mirko Sonntag,Lina Sun,Karolina Vukojevic
Issue Date:October 2012
pp. 1-8
The use of information technology in research and practice leads to increased degree of automation of tasks and makes scientific experiments more efficient in terms of cost, speed, accuracy, and flexibility. Scientific workflows have proven useful for the ...
 
A Novel Framework for Monitoring and Analyzing Quality of Data in Simulation Workflows
Found in: eScience, IEEE International Conference on
By Michael Reiter,Uwe Breitenbücher,Schahram Dustdar,Dimka Karastoyanova,Frank Leymann,Hong-Linh Truong
Issue Date:December 2011
pp. 105-112
In recent years scientific workflows have been used for conducting data-intensive and long running simulations. Such simulation workflows have processed and produced different types of data whose quality has a strong influence on the final outcome of simul...
 
Bridging the Gap between Business and Scientific Workflows: Humans in the Loop of Scientific Workflows
Found in: eScience, IEEE International Conference on
By Mirko Sonntag, Dimka Karastoyanova, Ewa Deelman
Issue Date:December 2010
pp. 206-213
Due to their different target applications business and scientific workflow systems provide different sets of features to their users. Significant amount of research is currently being done to employ the business workflow technology in the scientific domai...
 
BPEL'n'Aspects: Adapting Service Orchestration Logic
Found in: Web Services, IEEE International Conference on
By Dimka Karastoyanova, Frank Leymann
Issue Date:July 2009
pp. 222-229
The need for flexibility in process-based applications, in particular during their execution, places the demand for enabling adaptability of processes. AOP is considered to be one of the approaches to flexibly switch on and off functionality on per-instanc...
 
Virtualizing Services and Resources with ProBus: The WS-Policy-Aware Service and Resource Bus
Found in: Web Services, IEEE International Conference on
By Ralph Mietzner, Tammo van Lessen, Alexander Wiese, Matthias Wieland, Dimka Karastoyanova, Frank Leymann
Issue Date:July 2009
pp. 617-624
A fundamental principle of service oriented architectures is the decoupling of service requesters and service providers to enable late binding of services at deployment time or even dynamic binding of services at runtime.This is important in enterprise set...
 
Optimal Stratification of Transactions
Found in: Internet and Web Applications and Services, International Conference on
By Olha Danylevych, Dimka Karastoyanova, Frank Leymann
Issue Date:May 2009
pp. 493-498
The performance of applications is influenced by the way its operations are grouped into global transactions. This in turns influences the performance of business processes which utilize these applications as implementations of process activities/steps. St...
 
On Visualizing and Modelling BPEL with BPMN
Found in: Grid and Pervasive Computing Conference, Workshops at the
By David Schumm, Dimka Karastoyanova, Frank Leymann, Jörg Nitzsche
Issue Date:May 2009
pp. 80-87
The advantages of the process-based approach toimplementing applications lead to the development ofnotations for modelling business processes andlanguages for enacting them in a process engine forthe purpose of process automation. Currently theBusiness Pro...
 
Semantic Business Process Management: Scaling Up the Management of Business Processes
Found in: International Conference on Semantic Computing
By Carlos Pedrinaci, John Domingue, Christian Brelage, Tammo van Lessen, Dimka Karastoyanova, Frank Leymann
Issue Date:August 2008
pp. 546-553
Business Process Management (BPM) aims at supporting the whole life-cycle necessary to deploy and maintain business processes in organisations. Despite its success however, BPM suffers from a lack of automation that would support a smooth transition betwee...
 
Semantic Service Bus: Architecture and Implementation of a Next Generation Middleware
Found in: Data Engineering Workshops, 22nd International Conference on
By Dimka Karastoyanova, Branimir Wetzstein, Tammo van Lessen, Daniel Wutke, Joerg Nitzsche, Frank Leymann
Issue Date:April 2007
pp. 347-354
In this paper we present a middleware for the Service Oriented Architecture, called the Semantic Service Bus. It is an advanced middleware possessing enhanced features, as compared to the conventional service buses. It is distinguished by the fact that it ...
 
Extending BPEL for Run Time Adaptability
Found in: Enterprise Distributed Object Computing Conference, IEEE International
By Dimka Karastoyanova, Alejandro Houspanossian, Mariano Cilia, Frank Leymann, Alejandro Buchmann
Issue Date:September 2005
pp. 15-26
<p>The existing Web Service Flow (WS-flow) technologies enable both static and dynamic binding of participating Web services (WSs) on the process model level. Adaptability on per-instance basis is not sufficiently supported and therefore must be addr...
 
Third international workshop on principles of engineering service-oriented systems: (PESOS 2011)
Found in: Proceeding of the 33rd international conference on Software engineering (ICSE '11)
By Anna Liu, Dimka Karastoyanova, Grace A. Lewis, Manuel Carro
Issue Date:May 2011
pp. 1218-1219
Service-oriented systems have attracted great interest from industry and research communities worldwide. Service integrators, developers, and providers are collaborating to address the various challenges in the field. PESOS 2011 is a forum for all these co...
     
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