@inproceedings {INPROC-2005-126,
    author = {Mike P. Papazoglou and Paolo Traverso and Schahram Dustdar and Frank Leymann and Bernd J. Kr{\"a}mer},
    title = {{Service-Oriented Computing: A Research Roadmap}},
    booktitle = {Service Oriented Computing},
    editor = {Francisco Curbera and Bernd J. Kr{\"a}mer and Mike P. Papazoglou},
    publisher = {Internationales Begegnungs- und Forschungszentrum f{\"u}r Informatik (IBFI), Schloss Dagstuhl, Germany},
    institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
    series = {Dagstuhl Seminar Proceedings},
    volume = {05462},
    pages = {1--29},
    type = {Konferenz-Beitrag},
    month = {Mai},
    year = {2005},
    issn = {1862-4405},
    keywords = {Service-oriented computing; research road map; service foundations; service composition; service management; service monitoring; service-oriented engineering},
    language = {Englisch},
    cr-category = {K.1 The Computer Industry},
    ee = {http://drops.dagstuhl.de/opus/volltexte/2006/524/},
    department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen, Architektur von Anwendungssystemen},
    abstract = {This document presents a Services Research Roadmap that launches four pivotal,
      inherently related, research themes to Service-Oriented Computing (SOC):
      service foundations, service composition, service management and monitoring and
      service-oriented engineering. Each theme is introduced briefly from a
      technology, state of the art and scientific challenges standpoint. From the
      technology standpoint a comprehensive review of state of the art, standards,
      and current research activities in each key area is provided. From the state of
      the art the major open problems and bottlenecks to progress are identified.
      During the during seminar each core theme was initially introduced by a leading
      expert in the field who described the state of the art and highlighting open
      problems and important research topics for the SOC community to work on in the
      future. These experts were then asked to coordinate parallel workgroups that
      were entrusted with an in-depth analysis of the research opportunities and
      needs in the respective theme. The findings presented in this summary report
      build on the advice of those panels of experts from industry and academia who
      participated in this Dagstuhl Seminar and met at other occasions during the
      past three years, e.g., at the International Conference on Service Oriented
      Computing (ICSOC, see www.icsoc.org). These experts represent many disciplines
      including distributed computing, database and information systems, software
      engineering, computer architectures and middleware and knowledge
      representation.},
    url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2005-126&engl=0}
 }

@inproceedings {INPROC-2005-125,
    author = {Frank Leymann and Stefan Pottinger},
    title = {{Rethinking the Coordination Models of WS-Coordination and WS-CF}},
    booktitle = {Third IEEE European Conference on Web Services (ECOWS 2005)},
    publisher = {IEEE Computer Society},
    institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
    pages = {160--169},
    type = {Konferenz-Beitrag},
    month = {November},
    year = {2005},
    isbn = {0-7695-2409-5},
    doi = {10.1109/ECOWS.2005.20},
    language = {Englisch},
    cr-category = {K.1 The Computer Industry,
                   K.4.4 Electronic Commerce},
    department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen, Architektur von Anwendungssystemen},
    abstract = {WS-coordination and WS-CF provide support for distributed activities that
      require coordination in an environment of Web services. Both specifications are
      generic coordination frameworks, not specific for any application. Despite
      their generic character, up to now only transactional protocols have been
      defined, which leverage these coordination frameworks. In this work we map a
      distributed activity, that it is not related to transactions, onto the
      coordination model underlying WS-coordination and WS-CF. Consequently we
      identify the necessary characteristics of a distributed activity that leverages
      the coordination frameworks of WS-coordination and WS-CF. We also examine
      limits of these coordination frameworks and suggest additional mechanisms where
      support for coordination in particular use cases is not sufficient. In contrast
      to coordinating distributed transactions, additional problems could arise when
      other types of activities are subject to coordination. These problems are
      studied, classified and reviewed in conjunction with the architectural
      differences of WS-coordination and WS-CF.},
    url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2005-125&engl=0}
 }

@inproceedings {INPROC-2005-124,
    author = {Frank Leymann},
    title = {{The (Service) Bus: Services Penetrate Everyday Life}},
    booktitle = {Service-Oriented Computing - ICSOC 2005},
    editor = {Boualem Benatallah and Fabio Casati and Paolo Traverso},
    publisher = {Springer},
    institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
    series = {Lecture Notes in Computer Science},
    volume = {3826},
    pages = {12--20},
    type = {Konferenz-Beitrag},
    month = {November},
    year = {2005},
    isbn = {3-540-30817-2},
    doi = {10.1007/11596141_2},
    language = {Englisch},
    cr-category = {K.1 The Computer Industry},
    department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen, Architektur von Anwendungssystemen},
    abstract = {We sketch the vision of a ubiquitous service bus that will be the base for
      hosting and accessing services everywhere. The utility model for using IT
      artifacts is implied. Applications on top of the service bus will be centered
      on business processes and will be adaptive in multiple dimensions. The
      ubiquitous service bus will change the way we think about information
      technology.},
    url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2005-124&engl=0}
 }

@inproceedings {INPROC-2005-122,
    author = {Dimka Karastoyanova and Frank Leymann and Alejandro P. Buchmann},
    title = {{An Approach to Parameterizing Web Service Flows}},
    booktitle = {Proc. 3rd Intl. Conf. on Service Oriented Computing (ICSOC’2005)},
    editor = {Boualem Benatallah and Fabio Casati and Paolo Traverso},
    address = {Amsterdam, The Netherlands},
    publisher = {Springer},
    institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
    series = {Lecture Notes in Computer Science},
    volume = {3826},
    pages = {533--538},
    type = {Konferenz-Beitrag},
    month = {November},
    year = {2005},
    isbn = {3-540-30817-2},
    doi = {10.1007/11596141_45},
    language = {Englisch},
    cr-category = {K.1 The Computer Industry},
    department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen, Architektur von Anwendungssystemen},
    abstract = {The flexibility and reusability of Web Service flows (WS-flows) are limited
      especially by the fact that portType and operation names are hard-coded in the
      process definition. In this paper we argue that through parameterization and
      substitution WS-flows flexibility can be improved, while reusability is
      enhanced. We introduce a meta-model extension to enable run time evaluation of
      parameter values and thus discard the need to predict any possible partner
      service types during process modeling. The extension enables also run time
      changes in portType values. We show how the approach can be mapped to BPEL. We
      discuss prototypical implementation for the extended functionality and present
      conclusions and ideas for future work.},
    url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2005-122&engl=0}
 }

@inproceedings {INPROC-2005-121,
    author = {Dimka Karastoyanova and Alejandro Houspanossian and Mariano Cilia and Frank Leymann and Alejandro P. Buchmann},
    title = {{Extending BPEL for Run Time Adaptability}},
    booktitle = {Ninth IEEE International Enterprise Computing Conference (EDOC 2005)},
    publisher = {IEEE Computer Society},
    institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
    pages = {15--26},
    type = {Konferenz-Beitrag},
    month = {September},
    year = {2005},
    isbn = {0-7695-2441-9},
    doi = {10.1109/EDOC.2005.14},
    language = {Englisch},
    cr-category = {H.4.1 Office Automation},
    department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen, Architektur von Anwendungssystemen},
    abstract = {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 addressed to improve process flexibility upon changes in the
      environment. Ad-hoc process instance changes can be enabled by swapping
      participating WS instances, by modifying port types of the partners to be
      invoked, and by changing process logic. In this work, we address the problem of
      dynamic binding of WSs to WS-flow instances at run time, i.e. the ability to
      exchange a WS instance participating in a WS-flow instance with an alternative
      one. The problem is additionally complicated by the fact that the execution of
      a process depends on its deployment. We describe the ``find and bind'' mechanism,
      and we show its representation as a BPEL extension. We discuss the benefits
      that could be gained and the disadvantages it brings in. The mechanism extends
      and improves the existing process technologies. It facilitates a precisely
      controlled policy-based selection of WSs at run time and also provides for
      process instance repair, while maintaining simplicity. We also discuss a
      prototypical implementation of the presented functionality.},
    url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2005-121&engl=0}
 }

@inproceedings {INPROC-2005-120,
    author = {Martin Hepp and Frank Leymann and John Domingue and Alexander Wahler and Dieter Fensel},
    title = {{Semantic Business Process Management: A Vision Towards Using Semantic Web Services for Business Process Management}},
    booktitle = {IEEE International Conference on e-Business Engineering (ICEBE 2005)},
    editor = {Francis C. M. Lau and Hui Lei and Xiaofeng Meng and Min Wang},
    publisher = {IEEE Computer Society},
    institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
    pages = {535--540},
    type = {Konferenz-Beitrag},
    month = {Oktober},
    year = {2005},
    isbn = {0-7695-2430-3},
    doi = {10.1109/ICEBE.2005.110},
    language = {Englisch},
    cr-category = {K.1 The Computer Industry},
    department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen, Architektur von Anwendungssystemen},
    abstract = {Business process management (BPM) is the approach to manage the execution of
      IT-supported business operations from a business expert's view rather than from
      a technical perspective. However, the degree of mechanization in BPM is still
      very limited, creating inertia in the necessary evolution and dynamics of
      business processes, and BPM does not provide a truly unified view on the
      process space of an organization. We trace back the problem of mechanization of
      BPM to an ontological one, i.e. the lack of machine-accessible semantics, and
      argue that the modeling constructs of semantic Web services frameworks,
      especially WSMO, are a natural fit to creating such a representation. As a
      consequence, we propose to combine SWS and BPM and create one consolidated
      technology, which we call semantic business process management (SBPM).},
    url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2005-120&engl=0}
 }

@inproceedings {INPROC-2005-111,
    author = {Albert Maier and Bernhard Mitschang and Frank Leymann and Wolfson Dan},
    title = {{On Combining Business Process Integration and ETL Technologies}},
    booktitle = {Datenbanksysteme in Business, Technologie und Web (BTW'05)},
    editor = {Gesellschaft f{\"u}r Informatik},
    publisher = {K{\"o}llen},
    institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
    pages = {533--546},
    type = {Konferenz-Beitrag},
    month = {M{\"a}rz},
    year = {2005},
    isbn = {3-88579-394-6},
    language = {Englisch},
    cr-category = {H.2.8 Database Applications,
                   H.3.3 Information Search and Retrieval},
    ee = {http://btw2005.aifb.uni-karlsruhe.de/},
    department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen, Architektur von Anwendungssystemen;
                  Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Anwendersoftware},
    abstract = {On Combining Business Provess Integration and ETL Technologies},
    url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2005-111&engl=0}
 }

@article {ART-2005-16,
    author = {Frank Leymann},
    title = {{Choreography for the Grid: towards fitting BPEL to the resource framework}},
    journal = {Journal of Concurrency and Computation: Practice and Experience},
    publisher = {Wiley},
    volume = {18},
    number = {10},
    pages = {1201--1217},
    type = {Artikel in Zeitschrift},
    month = {April},
    year = {2005},
    doi = {10.1002/cpe.996},
    keywords = {Web Services; Grid computing; workflow management; service-oriented computing; service composition},
    language = {Englisch},
    cr-category = {K.1 The Computer Industry},
    department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen, Architektur von Anwendungssystemen},
    abstract = {The inherent heterogeneity of the Grid demands the ability to specify
      choreographies in a portable manner. This ensures that a choreography once
      specified can be deployed and executed in every workflow system within a Grid
      environment. It is likely that the Business Process Execution Language (BPEL)
      will have the corresponding broad support in the industry. In order to become
      first class citizens in the Grid, choreographies have to comply with the
      resource framework. We therefore suggest steps to make BPEL compliant with the
      resource framework. As a result, features of BPEL such as extended transactions
      will be available in a Grid environment.},
    url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=ART-2005-16&engl=0}
 }