@inproceedings {INPROC-2011-04,
author = {Oliver Kopp and Lasse Engler and Tammo van Lessen and Frank Leymann and J{\"o}rg Nitzsche},
title = {{Interaction Choreography Models in BPEL: Choreographies on the Enterprise Service Bus}},
booktitle = {Subject-Orientation as Enabler for the Next Generation of BPM Tools and Methods - Second International Conference S-BPM ONE 2010},
editor = {A. Fleischmann and W. Schmidt and D. Seese and R. Singer},
publisher = {Springer},
institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
series = {Communications in Computer and Information Science},
volume = {138},
pages = {36--53},
type = {Konferenz-Beitrag},
month = {Januar},
year = {2011},
doi = {10.1007/978-3-642-23135-3_3},
language = {Englisch},
cr-category = {H.4.1 Office Automation},
ee = {http://www.aifb.kit.edu/web/S-bpm-one/2010/en},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen},
abstract = {Interactions between services may be globally captured by choreographies. We
introduce BPELgold supporting modeling interaction choreography models using
BPEL. We show the usage of BPELgold in an enterprise service bus to ensure an
executed message exchange complies with a pre-defined choreography.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2011-04&engl=0}
}
@inproceedings {INPROC-2009-49,
author = {Marc Bischof and Oliver Kopp and Tammo van Lessen and Frank Leymann},
title = {{BPELscript: A Simplified Script Syntax for WS-BPEL 2.0}},
booktitle = {2009 35th Euromicro Conference on Software Engineering and Advanced Applications (SEAA 2009)},
publisher = {IEEE Computer Society Press},
institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
pages = {39--46},
type = {Konferenz-Beitrag},
month = {August},
year = {2009},
doi = {10.1109/SEAA.2009.21},
keywords = {service orchestration; service scripting; BPEL; BPM lifecycle},
language = {Englisch},
cr-category = {D.1.1 (Applicative Functional) Programming,
D.3.4 Programming Languages Processors,
H.4.1 Office Automation,
K.1 The Computer Industry},
ee = {http://seaa2009.vtt.fi/},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen},
abstract = {Business processes are usually modeled using graphical notations such as BPMN.
As a first step towards execution as workflow, a business process is
transformed to an abstract WS-BPEL process. Technical details required for
execution are added by an IT expert. While IT experts expect Java-like syntax
for programs, WS-BPEL requires processes to be expressed in XML. This paper
introduces BPELscript as a new syntax for WS-BPEL aiming to reduce the barrier
for IT experts to use WS-BPEL by providing a JavaScript-inspired syntax.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2009-49&engl=0}
}
@inproceedings {INPROC-2009-40,
author = {Ralph Mietzner and Tammo van Lessen and Alexander Wiese and Matthias Wieland and Dimka Karastoyanova and Frank Leymann},
title = {{Virtualizing Services and Resources with ProBus: The WS-Policy-Aware Service and Resource Bus}},
booktitle = {Proceedings of the 7th International Conference on Web Services (ICWS) 2009},
publisher = {IEEE Computer Society},
institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
type = {Konferenz-Beitrag},
month = {Juli},
year = {2009},
keywords = {WS-Policy; WSRF; Enterprise Service Bus; ESB; Service Selection},
language = {Englisch},
cr-category = {H.4.1 Office Automation},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen},
abstract = {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 settings, where different services that implement
business functions in critical business processes are dynamically chosen based
on availability or price. The same problem also applies to dynamic Grid
environments where resources need to be dynamically chosen based on
availability and other non-functional properties. The WS-Policy framework
describes how policies for both providers and requesters are specified to allow
the selection of services based on these policies. Existing approaches, using
WS-Policy, have drawbacks by placing the burden of the service selection
partially on the client. In this paper we present an approach to extend an
enterprise service bus that allows service clients to submit policies the
service provider needs to comply with directly in the message that triggers the
service invocation. We show how these policies are evaluated in the bus and how
policies are defined for not only stateless services, but also stateful
resources.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2009-40&engl=0}
}
@inproceedings {INPROC-2009-25,
author = {Tammo van Lessen and J{\"o}rg Nitzsche and Dimka Karastoyanova},
title = {{Facilitating Rich Data Manipulation in BPEL using E4X}},
booktitle = {Proceedings of the 1st Central-European Workshop on Services and their Composition, ZEUS 2009, Stuttgart, Germany, March 2--3, 2009},
editor = {Oliver Kopp and Niels Lohmann},
address = {Stuttgart},
publisher = {CEUR-WS.org},
institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
series = {CEUR Workshop Proceedings},
volume = {438},
pages = {102--108},
type = {Workshop-Beitrag},
month = {M{\"a}rz},
year = {2009},
issn = {1613-0073},
keywords = {WS-BPEL; BPEL; JavaScript; E4X; ECMAScript; XML},
language = {Englisch},
cr-category = {H.4.1 Office Automation},
ee = {ftp://ftp.informatik.uni-stuttgart.de/pub/library/ncstrl.ustuttgart_fi/INPROC-2009-25/INPROC-2009-25.pdf},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen},
abstract = {The Business Process Execution Language (BPEL) uses XML to specify the data
used within a process and realizes data flow via (globally) shared variables.
Additionally, assign activities can be used to copy (parts of) variables to
other variables using techniques like XPath or XSLT. Although BPEL’s built-in
functionality is sufficient for simple data manipulation tasks, it becomes very
cumbersome when dealing with more sophisticated data models, such as arrays.
ECMAScript for XML (E4X) extends JavaScript with support for XML-based data
manipulation by introducing new XPath-like language features. In this paper we
show how E4X can help to significantly ease data manipulation tasks and propose
a BPEL extension that allows employing JavaScript/E4X for implementing them. As
E4X allows defining custom functions in terms of scripts, reusability with
respect to data manipulation is improved. To verify the conceptual framework we
present a proof-of-concept implementation based on Apache ODE.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2009-25&engl=0}
}
@inproceedings {INPROC-2008-85,
author = {Tammo van Lessen and Frank Leymann and Ralph Mietzner and J{\"o}rg Nitzsche and Daniel Schleicher},
title = {{A Management Framework for WS-BPEL}},
booktitle = {Proceedings of the 6th IEEE European Conference on Web Services 2008},
publisher = {IEEE Computer Society},
institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
pages = {187--196},
type = {Konferenz-Beitrag},
month = {November},
year = {2008},
keywords = {WS-BPEL; BPEL; Management; Monitoring; Resources; WS-RF; REST; JMX},
language = {Englisch},
cr-category = {H.4.1 Office Automation,
K.1 The Computer Industry},
ee = {http://www.computing.dcu.ie/ecows08/},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen},
abstract = {WS-BPEL is the standard to define executable business processes in a Web
service world. Numerous commercial and open source BPEL engines exist on the
market today that allow the execution of process models defined in BPEL.
However, these execution engines only provide access to process model and
process instance data in terms of proprietary APIs. In this paper we present an
approach that models BPEL process models and process instances as resources and
thus provides a uniform access scheme for process model and process instance
data. This is crucial because access to process model and process instance data
is needed in different scenarios that are of key relevance in enterprises
today. These scenarios include compliance checking, repair of faulted business
processes as well as real-time monitoring of business processes. The lack of a
uniform access scheme to process model and process instance data hampers the
exchangeability of BPEL engines and therefore results in a potential vendor
lock-in.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2008-85&engl=0}
}
@inproceedings {INPROC-2008-47,
author = {Carlos Pedrinaci and Christian Brelage and Tammo van Lessen and John Domingue and Dimka Karastoyanova and Frank Leymann},
title = {{Semantic Business Process Management: Scaling up the Management of Business Processes}},
booktitle = {Proceedings of the 2nd IEEE International Conference on Semantic Computing (ICSC) 2008},
publisher = {IEEE Computer Society},
institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
pages = {546--553},
type = {Konferenz-Beitrag},
month = {August},
year = {2008},
language = {Englisch},
cr-category = {H.4.1 Office Automation},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen},
abstract = {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 between the business world and the IT world. We argue that
Semantic BPM, that is, the enhancement of BPM with Semantic Web Services
technologies, provides further scalability to BPM by increasing the level of
automation that can be achieved. We describe the particular SBPM approach
developed within the SUPER project and we illustrate how it contributes to
enhancing existing BPM solutions in order to achieve more flexible, dynamic and
manageable business processes.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2008-47&engl=0}
}
@inproceedings {INPROC-2008-44,
author = {J{\"o}rg Nitzsche and Tammo van Lessen and Frank Leymann},
title = {{Extending BPEL light for Expressing Multi-Partner Message Exchange Patterns}},
booktitle = {Proceedings of the 12th IEEE International EDOC Conference (EDOC 2008)},
publisher = {IEEE Computer Society},
institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
pages = {245--254},
type = {Konferenz-Beitrag},
month = {September},
year = {2008},
isbn = {978-0-7695-3373-5},
keywords = {BPEL; BPEL light; MEP; Message Exchange Pattern; Multi-Partner},
language = {Englisch},
cr-category = {H.4.1 Office Automation,
K.1 The Computer Industry},
ee = {http://www.lrz-muenchen.de/~edoc2008/},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen},
abstract = {Message exchange patterns provide means to define the message flow of a service
and how these messages are related in an abstract and reusable manner. They are
an integral part of WSDL 2.0 and allow defining operations that have a message
exchange beyond requestresponse. They reduce the impedance mismatch between
imperative programming and message orientation while emphasizing the message
orientated nature of Web Services. Whereas BPEL defines a flow between Web
Service operations, BPELlight is an appropriate candidate to define the flow
within operations since it abstracts from WSDL. In this paper we extended
BPELlight to facilitate capturing complex multi-lateral message exchanges. We
refine the partner model and relax the definition of a conversation to enable
modelling conversations that involve different partner types. We also extend
the language with a first-class construct that enables storing, querying and
thus distinguishing addressing information related to multiple partner
instances. This way we enable modelling message exchange patterns that capture
business logic in a reusable manner on an abstract level like for instance a
request for bid scenario or a business transaction for purchase.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2008-44&engl=0}
}
@inproceedings {INPROC-2008-38,
author = {Oliver Kopp and Tammo van Lessen and J{\"o}rg Nitzsche},
title = {{The Need for a Choreography-aware Service Bus}},
booktitle = {YR-SOC 2008},
publisher = {Online},
institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
pages = {28--34},
type = {Workshop-Beitrag},
month = {Juni},
year = {2008},
language = {Englisch},
cr-category = {H.4.1 Office Automation},
ee = {ftp://ftp.informatik.uni-stuttgart.de/pub/library/ncstrl.ustuttgart_fi/INPROC-2008-38/INPROC-2008-38.pdf,
http://www.yrsoc.org},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen},
abstract = {Choreographies offer means to describe the long-running collaboration of
business partners. Such descriptions can be used to create new participant
processes which comply to the overall choreography or to check whether
participating processes conform to the protocol. In addition, choreography
descriptions allow for asserting whether a completed cross-organizational
conversation has been compliant to the planned choreography. However,
choreography descriptions have so far not been used during execution but only
during design time. Therefore, it is not yet possible to immediately detect
protocol violations and to instantly handle such violations. In this paper we
motivate the need of a Choreography-aware Service Bus which is capable of
tracking the soundness of cross-organizational conversations while they are
running. This fosters a novel notion of exception handling in the context of
choreographies.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2008-38&engl=0}
}
@inproceedings {INPROC-2008-34,
author = {Tammo van Lessen and J{\"o}rg Nitzsche and Frank Leymann},
title = {{Formalising Message Exchange Patterns using BPEL light}},
booktitle = {Proceedings of the 5th International Conference on Services Computing (SCC'08) Research Track},
publisher = {IEEE Computer Society},
institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
pages = {353--360},
type = {Konferenz-Beitrag},
month = {Juli},
year = {2008},
language = {Englisch},
cr-category = {H.4.1 Office Automation,
K.1 The Computer Industry},
ee = {http://conferences.computer.org/scc/2008/},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen},
abstract = {In a message-driven SOA, message exchange patterns (MEPs) define a reusable
notion of conversational contracts between a service consumer and a service
provider from the provider's point of view. They enable a common understanding
regarding a message flow between both parties. In contrast to version 1.1 of
the Web Service Description Language (WSDL) the current version 2.0 has
introduced a template for defining such patterns that allows to define and
reference patterns beyond the standard input/output ones defined in the
specification. Although reasonable, this approach brings several disadvantages
which we point out in this paper. Since WSDL 2.0 MEPs and WS-BPEL processes
describe interaction behaviour from the same perspective BPEL makes a perfect
candidate as a language for formalising MEPs, especially because it provides a
powerful mechanism for describing control flow and correlation of related
messages. In this work we propose a way to formalising MEPs using a WSDL-less
BPEL dialect called BPEL light. We introduce a new abstract BPEL profile for
defining reusable and machine-readable MEPs that is capable of expressing
arbitrary message exchanges. With this approach we pave the way for more
flexible interaction styles and reduce the impedance mismatch between
imperative programming and message orientation.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2008-34&engl=0}
}
@inproceedings {INPROC-2008-33,
author = {J{\"o}rg Nitzsche and Tammo van Lessen and Frank Leymann},
title = {{WSDL 2.0 Message Exchange Patterns: Limitations and Opportunities}},
booktitle = {Proceedings of the 3rd International Conference on Internet and Web Applications and Services (ICIW 2008)},
publisher = {IEEE},
institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
type = {Konferenz-Beitrag},
month = {Juni},
year = {2008},
language = {Englisch},
cr-category = {H.4.1 Office Automation,
K.1 The Computer Industry},
ee = {http://www.iaria.org/conferences2008/ProgramICIW08.html},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen},
abstract = {The Web Service Description Language (WSDL) provides means to describe
functional aspects of a service in a Service Oriented Architecture (SOA) based
on Web Service technology. In contrast to its predecessor (WSDL 1.1), WSDL 2.0
does not define a fixed set of operation types but provides for a generic
mechanism to define an operation by means of message exchange patterns (MEPs).
In this paper we identify new MEPs and extend the template used to define MEPs
to allow expressing more complex patterns. Furthermore, we compare the
expressivity of MEPs in general with other work and formalisms in the field of
service interaction. We give a refined definition of MEPs based on a detailed
discussion and discuss how WSDL and the MEPs in particular can be combined with
the choreography approach.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2008-33&engl=0}
}
@inproceedings {INPROC-2008-100,
author = {Carlos Pedrinaci and Dave Lambert and Branimir Wetzstein and Tammo van Lessen and Luchesar Cekov and Marin Dimitrov},
title = {{SENTINEL: a semantic business process monitoring tool}},
booktitle = {Proceedings of the First International Workshop on Ontology-supported Business Intelligence, OBI 2008, Karlsruhe, Germany, October 27, 2008},
editor = {Alistair Duke and Martin Hepp and Kalina Bontcheva and Marc B. Vilain},
publisher = {Association for Computing Machinery (ACM)},
institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
series = {ACM International Conference Proceeding Series},
volume = {308},
pages = {1--12},
type = {Workshop-Beitrag},
month = {Oktober},
year = {2008},
isbn = {978-1-60558-219-1},
keywords = {Business Activity Monitoring; Business Process Analysis; Semantic Business Process Management},
language = {Englisch},
cr-category = {D.2.8 Software Engineering Metrics,
D.2.9 Software Engineering Management,
H.4.1 Office Automation,
I.2.4 Knowledge Representation Formalisms and Methods},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen},
abstract = {Business Activity Monitoring (BAM) aims to support the real-time analysis of
business processes in order to improve the speed and effectiveness of business
operations. Providing a timely, integrated high-level view on the evolution and
well-being of business activities within enterprises constitutes a highly
valuable analytical tool for monitoring, managing and hopefully enhancing
businesses. However, the degree of automation currently achieved cannot support
the level of reactivity and adaptation demanded by businesses. We argue that
the fundamental problem is that moving between the business level and the IT
level is insufficiently automated and suggest an extensive use of semantic
technologies as a solution. In particular, we present SENTINEL a Semantic
Business Process Monitoring tool that advances the state of the art in BAM by
making extensive use of semantic technologies in order to support the
integration and derivation of business level knowledge out of low-level audit
trails generated by IT systems.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2008-100&engl=0}
}
@inproceedings {INPROC-2008-09,
author = {Dimka Karastoyanova and Tammo van Lessen and Frank Leymann and Zhilei Ma and J{\"o}rg Nitzsche and Branimir Wetzstein and Sami Bhiri and Manfred Hauswirth and Maciej Zaremba},
title = {{A Reference Architecture for Semantic Business Process Management Systems}},
booktitle = {Multikonferenz Wirtschaftsinformatik 2008},
editor = {Martin Bichler and Thomas Hess and Helmut Krcmar and Ulrike Lechner and Florian Matthes and Arnold Picot and Benjamin Speitkamp and Petra Wolf},
address = {Berlin},
publisher = {GITO-Verlag},
institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
pages = {371--372},
type = {Konferenz-Beitrag},
month = {Februar},
year = {2008},
isbn = {978-3-940019-34-9},
language = {Englisch},
cr-category = {H.5.4 Hypertext/Hypermedia},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen},
abstract = {Semantic Business Process Management (SBPM) enhances BPM with semantic
technologies in order to increase the degree of automation in the BPM lifecycle
and help in bridging the gap between the business and IT views on business
processes. In this paper, we describe the architecture of an SBPM System
(SBPMS) which supports the whole SBPM lifecycle by providing functionality for
process modeling, process configuration, process execution, and process
analysis. We analyze the functional requirements of the SBPMS from the business
user's and the IT expert's point of view and derive and describe the components
of the SBPMS and their key interactions to achieve the required
functionalities. We show how existing BPMS components can be extended to use
semantics, and describe the integration of new components, such as a Semantic
Execution Environment. The presented SBPMS is based on BPMN, BPEL and WSMO
technologies.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2008-09&engl=0}
}
@inproceedings {INPROC-2007-63,
author = {J{\"o}rg Nitzsche and Tammo van Lessen and Dimka Karastoyanova and Frank Leymann},
title = {{BPEL for Semantic Web Services (BPEL4SWS)}},
booktitle = {Proceedings of the 3rd International Workshop on Agents and Web Services in Distributed Environments AWeSome'07 -- On the Move to Meaningful Internet Systems 2007: OTM 2007 Workshops},
publisher = {Springer-Verlag},
institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
series = {Lecture Notes in Computer Science},
volume = {4805/2007},
pages = {179--188},
type = {Workshop-Beitrag},
month = {November},
year = {2007},
isbn = {978-3-540-76887-6},
doi = {10.1007/978-3-540-76888-3_37},
keywords = {WS-BPEL; BPELlight; BPEL4SWS; Semantic Web Services; SWS; BPM},
language = {Englisch},
cr-category = {C.2.4 Distributed Systems,
D.2.11 Software Engineering Software Architectures,
D.2.12 Software Engineering Interoperability,
H.4.1 Office Automation},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen},
abstract = {In this paper we present BPEL for Semantic Web Services (BPEL4SWS) - a language
that facilitates the orchestration of Semantic Web Services using a process
based approach. It is based on the idea of WSDL-less BPEL and enables
describing activity implementations semantically which increases the
flexibility of business processes. Following an approach that uses a set of
composable standards and specifications, BPEL4SWS is independent of any
Semantic Web Service framework. It can be used to compose Semantic Web
Services, traditional Web Services and a mix of them.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2007-63&engl=0}
}
@inproceedings {INPROC-2007-60,
author = {Tammo van Lessen and Branimir Wetzstein and J{\"o}rg Nitzsche and Zhilei Ma and Dimka Karastoyanova and Frank Leymann},
title = {{Gesch{\"a}ftsprozessmanagement Meets Semantic Web.}},
booktitle = {Tagungsband Science Meets Business. Stuttgarter Softwaretechnik Forum 2007, Fraunhofer IAO, 23. November 2007.},
editor = {D. Spath and A. Weisbecker and O. H{\"o}{\ss} and J. (Hrsg.) Drawehn},
address = {Stuttgart},
publisher = {Fraunhofer IRB Verlag},
institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
pages = {75--83},
type = {Konferenz-Beitrag},
month = {November},
year = {2007},
isbn = {3-8167-7493-8},
keywords = {Semantic Business Process Management},
language = {Deutsch},
cr-category = {H.4.1 Office Automation},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen},
abstract = {23. November 2007
Science Meets Business
Am vierten Tag des Stuttgarter Softwaretechnik Forums geben Experten aus
Forschung und Wissenschaft Einblick in aktuelle Forschungsarbeiten in den
Themenbereichen Softwareengineering, Softwaretechnik und Mobile Anwendungen.
Dadurch k{\"o}nnen die Zuh{\"o}rer interessante Impulse f{\"u}r ihr t{\"a}gliches Business
sowie einen Ausblick auf zuk{\"u}nftige Trends und Entwicklungen mitnehmen.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2007-60&engl=0}
}
@inproceedings {INPROC-2007-24,
author = {J{\"o}rg Nitzsche and Tammo van Lessen and Dimka Karastoyanova and Frank Leymann},
title = {{BPEL light}},
booktitle = {Proceedings of the 5th International Conference on Business Process Management (BPM 2007)},
publisher = {Springer-Verlag},
institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
series = {Lecture Notes in Computer Science},
volume = {4714},
pages = {214--229},
type = {Konferenz-Beitrag},
month = {September},
year = {2007},
doi = {10.1007/978-3-540-75183-0_16},
keywords = {BPEL; BPEL light; WSDL-less BPEL; BPM; Workflow; SOA; Web services; flexibility; reusability},
language = {Englisch},
cr-category = {C.2.4 Distributed Systems,
D.2.11 Software Engineering Software Architectures,
D.2.12 Software Engineering Interoperability,
H.4.1 Office Automation},
contact = {joerg.nitsche@iaas.uni-stuttgart.de and tammo.van.lessen@iaas.uni-stuttgart.de},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen},
abstract = {In this paper we present BPEL light which decouples process logic from
interface definitions. By extending BPEL 2.0 with a WSDL-less interaction
model, BPEL light allows to specify process models independent of Web service
technology. Since its interaction model is based on plain message exchange, it
is completely independent of any interface description language. This fosters
flexibility and reusability of process models and enables modelling platform
and component model independent business processes. The presented approach
takes a significant step towards narrowing down the gap between business level
and IT level by facilitating a more business-oriented modelling of executable
processes.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2007-24&engl=0}
}
@inproceedings {INPROC-2007-23,
author = {J{\"o}rg Nitzsche and Daniel Wutke and Tammo van Lessen},
title = {{An Ontology for Executable Business Processes}},
booktitle = {Proceedings of the Workshop on Semantic Business Process and Product Lifecycle Management (SBPM 2007) held in conjunction with the 3rd European Semantic Web Conference (ESWC 2007) Innsbruck, Austria, June 7, 2007},
editor = {Martin Hepp and Knut Hinkelmann and Dimitris Karagiannis and R{\"u}diger Klein and Nenad Stojanovic},
address = {Innsbruck},
publisher = {CEUR Workshop Proceedings},
institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
pages = {52--63},
type = {Workshop-Beitrag},
month = {Juni},
year = {2007},
issn = {1613-0073},
keywords = {Business Process Management (BPM), Business Process Execution Language (BPEL), Semantic Business Process Management (SBPM),Ontologies, WSML},
language = {Englisch},
cr-category = {H.4.1 Office Automation},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen},
abstract = {The Web Service Business Process Execution Language (WSBPEL) is the de facto
standard for describing workflow-like compositions of Web services, so-called
Web service orchestrations. In this paper an ontology for executable BPEL
processes is presented, which reflects both the natural language description
and the syntax given in the specification. The ontology makes BPEL process
models accessible at a semantic level and thus to intelligent queries and
machine reasoning.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2007-23&engl=0}
}
@inproceedings {INPROC-2007-22,
author = {Dimka Karastoyanova and Branimir Wetzstein and Tammo van Lessen and Daniel Wutke and J{\"o}rg Nitzsche and Frank Leymann},
title = {{Semantic Service Bus: Architecture and Implementation of a Next Generation Middleware}},
booktitle = {Proceedings of the Second International ICDE Workshop on Service Engineering (SEIW 2007)},
publisher = {IEEE Computer Society},
institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
pages = {347--354},
type = {Workshop-Beitrag},
month = {April},
year = {2007},
isbn = {1-4244-0832-6},
doi = {10.1109/ICDEW.2007.4401015},
keywords = {Semantic Service Bus; SSB; Enterprise Service Bus; BPEL},
language = {Englisch},
cr-category = {C.2.4 Distributed Systems,
D.2.11 Software Engineering Software Architectures,
D.2.12 Software Engineering Interoperability,
H.4.1 Office Automation},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen},
abstract = {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 uses semantic description of service
capabilities, as well as requirements towards services to enable more elaborate
service discovery, selection, routing, composition and data mediation. The
contributions of the paper are the conceptual architecture of the Semantic
Service Bus and a prototypical implementation supporting different semantic Web
service technologies (OWL and WSMO) and vanilla Web services. Since the mission
critical application scenarios (for SOA) involve complex orchestrations of
services, we have chosen to utilize semantically annotated service
orchestrations as the applications to use this middleware.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2007-22&engl=0}
}
@inproceedings {INPROC-2007-100,
author = {Tammo van Lessen and J{\"o}rg Nitzsche and Marin Dimitrov and Mihail Konstantinov and Dimka Karastoyanova and Luchesar Cekov and Frank Leymann},
title = {{An Execution Engine for Semantic Business Processes}},
booktitle = {Proceedings of Service-Oriented Computing - ICSOC 2007 Workshops},
publisher = {Springer-Verlag},
institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
series = {Lecture Notes in Computer Science},
volume = {4907},
pages = {200--211},
type = {Workshop-Beitrag},
month = {September},
year = {2007},
language = {Englisch},
cr-category = {H.4.1 Office Automation,
K.1 The Computer Industry},
ee = {www.sysedv.tu-berlin.de/semsoc/},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen},
abstract = {In this paper we present the architecture and design of an extended BPEL engine
that implements the operational semantics of BPEL4SWS. BPEL4SWS is an extension
of the BPEL language with support for Semantic Web Service concepts like
mediation and semantic descriptions of activity implementations. We describe
the basic communication scenarios of processes with services and the
interaction between the engine components involved in the execution of BPEL4SWS
processes. The presented prototype is based on the open source BPEL engine
Apache ODE, features improved configurability and facilitates the definition of
additional BPEL extensions with minimal development effort.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2007-100&engl=0}
}
@article {ART-2010-16,
author = {Tammo van Lessen and Daniel L{\"u}bke and Simon Moser},
title = {{Open-Source-BPEL-Orchester Teil 3: Faults \& Regression – Wenn mal jemand im BPEL Orchester schief spielt}},
journal = {JavaMagazin 03/2010},
publisher = {Software \& Support Verlag},
pages = {74--78},
type = {Artikel in Zeitschrift},
month = {Februar},
year = {2010},
keywords = {BPEL; Eclipse BPEL Designer; Apache ODE; BPELUnit},
language = {Deutsch},
cr-category = {H.4.1 Office Automation},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen},
abstract = {Im ersten Teil dieser Artikelserie wurde eine BPEL-Orchestrierung f{\"u}r einen
fiktiven F{\"u}hrererscheinprozess entwickelt. Im zweiten Teil wurden f{\"u}r diesen
Prozess drei Testf{\"a}lle entworfen. In diesem Teil werden wir zun{\"a}chst, dem
„Test-First“-Paradigma folgend, einen vierten Testfall definieren, mit dem ein
funktionales Problem identifiziert wird. Daraufhin korrigieren wir das
Prozessmodel, und stellen damit sicher, dass wir mit den vorhandenen Testf{\"a}llen
ein sicheres Regression-Fallnetz f{\"u}r unseren Prozess haben. Abschliessend
widmen wir uns noch ein wenig dem Management und der {\"U}berwachung von
Prozessinstanzen.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=ART-2010-16&engl=0}
}
@article {ART-2010-15,
author = {Daniel L{\"u}bke and Simon Moser and Tammo van Lessen},
title = {{Open-Source-BPEL-Orchester Teil 2: Proben im BPEL Orchester}},
journal = {JavaMagazin 02/2010},
publisher = {Software \& Support Verlag},
pages = {63--66},
type = {Artikel in Zeitschrift},
month = {Januar},
year = {2010},
keywords = {BPEL; Eclipse BPEL Designer; Apache ODE; BPELUnit},
language = {Deutsch},
cr-category = {H.4.1 Office Automation},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen},
abstract = {Im ersten Teil unserer Open-Source-Serie haben wir den BPEL Designer und Apache
ODE als BPEL Engine kennen gelernt. Doch was kommt, wenn im Designer alles gut
anzusehen ist, es aber in der Ausf{\"u}hrung hakt? Wie jede andere Software muss
auch der BPEL-Prozess getestet werden. Dies verleiht nicht nur dem Kunden
sondern auch Ihnen als „Komponisten“ das gute Gef{\"u}hl, dass die Services immer
ein einstimmiges Konzert geben werden. Dazu werden wir in diesem Teil das
Open-Source-Werkzeug BPELUnit vorstellen und erste praktische Erfahrungen damit
sammeln.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=ART-2010-15&engl=0}
}
@article {ART-2010-14,
author = {Dimka Karastoyanova and Tammo van Lessen and Ralph Mietzner},
title = {{BPM au{\ss}erhalb der Verwaltung: Ein Blick {\"u}ber den Tellerrand}},
journal = {Business Technology 3.2010 - Prozesse},
publisher = {Software \& Support Verlag},
pages = {54--58},
type = {Artikel in Zeitschrift},
month = {Oktober},
year = {2010},
keywords = {BPM; Systems Management; Nexus; SimTech; Software Engineering; Message Exchange Patterns},
language = {Deutsch},
cr-category = {H.4.1 Office Automation},
ee = {http://it-republik.de/business-technology/bt-magazin-ausgaben/Prozesse-000420.html},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen},
abstract = {Beim Thema Gesch{\"a}ftsprozessmanagement (Business Process Management (BPM))
denken wir unweigerlich an Dokumentation und Werkzeugunterst{\"u}tzung f{\"u}r
administrative Prozesse wie Kreditgenehmigungs-, Reisebuchungs- und
Versicherungsantragsprozesse. Doch auch in anderen Dom{\"a}nen wie der Produktion,
dem Systems Management, der Softwareentwicklung, der Forschung oder der
Simulation etc. kommen Methoden und Techniken des Gesch{\"a}ftsprozessmanagements
zunehmend zum Einsatz. In diesem Artikel stellen wir Anwendungsf{\"a}lle und
BPM-L{\"o}sungen f{\"u}r diese Dom{\"a}nen vor und beleuchten die Vorteile, die aus einem
durchg{\"a}ngigen BPM-Ansatz entstehen.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=ART-2010-14&engl=0}
}
@article {ART-2009-29,
author = {Simon Moser and Tammo van Lessen and Daniel L{\"u}bke},
title = {{Open-Source-BPEL-Orchester}},
journal = {JavaMagazin 01/2010},
publisher = {Software \& Support Verlag},
pages = {62--68},
type = {Artikel in Zeitschrift},
month = {Dezember},
year = {2009},
keywords = {BPEL; Eclipse BPEL Designer; Apache ODE; BPELUnit},
language = {Deutsch},
cr-category = {H.4.1 Office Automation},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen},
abstract = {WS-BPEL ist ein Standard zur Beschreibung von ausf{\"u}hrbaren Gesch{\"a}ftsprozessen.
W{\"a}hrend zeitgleich zum Erscheinen des Standards schon erste kommerzielle
Software f{\"u}r WS-BPEL verf{\"u}gbar war, ist es erst seit kurzem m{\"o}glich, den
kompletten Lebenszyklus eines BPEL-Gesch{\"a}ftsprozesses (von der Modellierung
{\"u}ber die Ausf{\"u}hrung bis hin zum Test) mittels Open Source Software abzubilden.
In dieser dreiteiligenArtikelserie werden wir zeigen, wie man diese Aufgabe mit
Hilfe der drei Softwarepakete Eclipse BPEL Designer, Apache ODE und BPELUnit
bewerkstelligen kann.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=ART-2009-29&engl=0}
}
@article {ART-2009-13,
author = {Tammo van Lessen and J{\"o}rg Nitzsche and Frank Leymann},
title = {{Conversational Web Services: Leveraging BPEL light for Expressing WSDL 2.0 Message Exchange Patterns}},
journal = {Enterprise Information Systems},
publisher = {Taylor \& Francis},
volume = {3},
number = {3},
pages = {347--367},
type = {Artikel in Zeitschrift},
month = {August},
year = {2009},
doi = {10.1080/17517570903046300},
keywords = {BPEL; BPEL light; WSDL 2.0; Message Exchange Patterns; Conversational Web Services},
language = {Englisch},
cr-category = {H.4.1 Office Automation},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen},
abstract = {Message exchange patterns provide means to define the message flow of a service
and how these messages are related in an abstract and reusable manner. They are
an integral part of WSDL 2.0 and allow defining operations that have a message
exchange beyond request-response. They reduce the impedance mismatch between
imperative programming and message orientation while emphasizing the message
orientated nature of Web Services. Whereas BPEL defines a flow between Web
Service operations, BPEL light is an appropriate candidate to define the flow
within operations since it abstracts from WSDL. In this article we use BPEL
light to capture complex message exchanges. We show how its partner model can
be used to not only define bi-lateral message exchanges but also those
conversations that involve different partner types and/or multiple instances of
such partners. Therefore we introduce first-class mechanisms to store, query
and thus distinguish addressing information related to multiple partner
instances. In addition, we increase reusability by allowing recursive
definitions of such models. Thus, we enable modelling message exchange patterns
that capture business logic in a reusable manner on an abstract level like for
instance a request for bid scenario or a business transaction for purchase.
Finally, we show how such patterns can be generically mapped to transport
protocols.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=ART-2009-13&engl=0}
}
@article {ART-2008-20,
author = {J{\"o}rg Nitzsche and Tammo van Lessen and Dimka Karastoyanova and Frank Leymann},
title = {{Composing Services on the Grid Using BPEL4SWS}},
journal = {Multiagent and Grid Systems},
publisher = {IOS Press},
volume = {4},
type = {Artikel in Zeitschrift},
month = {Dezember},
year = {2008},
keywords = {Grid; BPEL; BPEL4SWS; Grid Services; Web Services; Semantic Web Services; Scientific Workflows},
language = {Englisch},
cr-category = {H.4.1 Office Automation},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen},
abstract = {Service composition on the Grid is a challenging task as documented in existing
research work. Even though there are initial attempts to use the Business
Process Execution Language (BPEL) to compose services on the Grid, still there
is a significant lack of flexibility and reusability needed in scientific
applications. In this paper we present BPEL for Semantic Web Services
(BPEL4SWS) - a language that facilitates the orchestration of Grid Services
exposed as traditional Web Services or Semantic Web Services using a
process-based approach. It is based on the idea of WSDL-less BPEL and
incorporates semantic descriptions of process activity implementations which
increases the flexibility of business workflows as well as scientific
workflows. Following an approach that uses a set of composable standards and
specifications, BPEL4SWS is independent of any Semantic Web Service framework
and therefore can also utilize any kind of Semantic Grid services. The
advantages of BPEL4SWS are: (1) compliance with standards, (2) independence on
service technologies, (3) applicability for both business applications as well
as scientific workflows that use Grid services, (4) improved flexibility of
processes.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=ART-2008-20&engl=0}
}
@article {ART-2007-07,
author = {J{\"o}rg Nitzsche and Tammo van Lessen and Dimka Karastoyanova and Frank Leymann},
title = {{WSMO/X in the context of business processes: improvement recommendations}},
journal = {International Journal of Web Information Systems},
publisher = {Emerald},
volume = {3},
number = {1/2},
pages = {89--103},
type = {Artikel in Zeitschrift},
month = {Januar},
year = {2007},
issn = {1744-0084},
doi = {10.1108/17440080710829234},
keywords = {WSMO; WSMX; BPEL; BPM; SWS; Semantic Web Services},
language = {Englisch},
cr-category = {C.2.4 Distributed Systems,
D.2.11 Software Engineering Software Architectures,
D.2.12 Software Engineering Interoperability,
H.4.1 Office Automation},
ee = {http://www.emeraldinsight.com/Insight/viewContentItem.do?contentType=Article&contentId=1630706},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen},
abstract = {Service-oriented architecture (SOA) is an architecture paradigm targeting
integration of applications within and across enterprise boundaries. It has
gathered research and industry acceptance and has given an enormous impetus to
the business process management technology. Web service (WS) technology is one
implementation of the SOA paradigm. It enables seamless integration of new and
legacy applications through a stack of standardized composable specifications.
WS orchestration is facilitated by the Business Process Execution Language
which provides a recursive service composition model. While the programming
model the WS technology provides is very flexible, a major deficiency is the
need to discover services implementing a particular abstract interface, whereas
functional similarities of services are disregarded. The Semantic Web Service
technologies, like Web Service Modelling Ontology (WSMO) and Web Ontology
Language for Services have been developed with the purpose of eliminating these
deficiencies by enabling service discovery based on functional and
non-functional properties. The paper aims to focus on these issues. This paper
presents a list of requirements that business processes impose on SOA
applications. It analyzes the support that WSMO/Web Service Model eXecution
environment (WSMX) provides to address these requirements and compares it with
the support enabled by the WS specification stack. The paper identifies major
flaws in the WSMO model and its reference implementation with respect to
business process support. The paper recommends possible solutions for
eliminating the lack of needed features on behalf of WSMO/WSMX. It presents in
detail how to enable asynchronous stateful communication among WSMO WS and
partner-based WS discovery by extending the WSMO model. Additionally, it
extends the API of the reference implementation to facilitate the execution of
services communicating asynchronously.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=ART-2007-07&engl=0}
}
@inbook {INBOOK-2009-02,
author = {Dimka Karastoyanova and Tammo van Lessen and Frank Leymann and Zhilei Ma and J{\"o}rg Nitzsche and Branimir Wetzstein},
title = {{Semantic Business Process Management: Applying Ontologies in BPM}},
series = {Handbook of Research on Business Process Modeling},
publisher = {Information Science Publishing},
pages = {312--330},
type = {Beitrag in Buch},
month = {April},
year = {2009},
isbn = {978-1-60566-288-6},
keywords = {SBPM; BPEL4SWS; SOA; BPM; SWS},
language = {Englisch},
cr-category = {H.4.1 Office Automation},
ee = {http://www.igi-global.com/reference/details.asp?ID=33287},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen},
abstract = {Even though process orientation/BPM is a widely accepted paradigm with heavy
impact on industry and research the available technology does not support the
business professionals’ tasks in an appropriate manner that is in a way
allowing processes modeling using concepts from the business domain. This
results in a gap between the business people expertise and the IT knowledge
required. The current trend in bridging this gap is to utilize technologies
developed for the Semantic Web, for example ontologies, while maintaining
reusability and flexibility of processes. In this chapter the authors present
an overview of existing technologies, supporting the BPM lifecycle, and focus
on potential benefits Semantic Web technologies can bring to BPM. The authors
will show how these technologies help automate the transition between the
inherently separate/detached business professionals’ level and the IT level
without the burden of additional knowledge acquisition on behalf of the
business professionals. As background information they briefly discuss existing
process modeling notations like the Business Process Modeling Notation (BPMN)
as well as the execution centric Business Process Execution Language (BPEL),
and their limitations in terms of proper support for the business professional.
The chapter stresses on the added value Semantic Web technologies yield when
leveraged for the benefit of BPM. For this the authors give examples of
existing BPM techniques that can be improved by using Semantic Web
technologies, as well as novel approaches which became possible only through
the availability of semantic descriptions. They show how process model
configuration can be automated and thus simplified and how flexibility during
process execution is increased. Additionally, they present innovative
techniques like automatic process composition and auto-completion of process
models where suitable process fragments are automatically discovered to make up
the process model. They also present a reference architecture of a BPM system
that utilizes Semantic Web technologies in an SOA environment.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INBOOK-2009-02&engl=0}
}
@book {BOOK-2011-01,
author = {Tammo van Lessen and Daniel L{\"u}bke and J{\"o}rg Nitzsche},
title = {{Gesch{\"a}ftsprozesse automatisieren mit BPEL}},
address = {Heidelberg},
publisher = {dpunkt Verlag},
pages = {278},
type = {Buch},
month = {Januar},
year = {2011},
isbn = {978-3-89864-670-3},
language = {Deutsch},
cr-category = {H.4.1 Office Automation,
D.1.7 Visual Programming,
D.3 Programming Languages},
ee = {http://www.bpelbuch.de},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen;
Universit{\"a}t Stuttgart, Institut f{\"u}r Architektur von Anwendungssystemen},
abstract = {Die Business Process Execution Language (WS-BPEL) ist der De-facto-Standard f{\"u}r
die technische Realisierung von Gesch{\"a}ftsprozessen auf der
Web-Service-Plattform.
Dieses Buch f{\"u}hrt zun{\"a}chst in die Grundlagen der Gesch{\"a}ftsprozessmodellierung
ein, wobei zwischen fachlichen und technischen Prozessmodellen unterschieden
wird. Es thematisiert die Probleme, die bei der technischen Umsetzung von
fachlichen Modellen entstehen k{\"o}nnen, und zeigt entsprechende L{\"o}sungen auf.
Dabei wird auch auf das Testen von BPEL-basierten Anwendungen eingegangen. Zur
Veranschaulichung wird ein durchg{\"a}ngiges Fallbeispiel verwendet, sodass der
Leser nicht nur die Konzepte von BPEL kennenlernt, sondern auch deren korrekte
Anwendung. Alle Beispiele k{\"o}nnen mit Open-Source-Software nachvollzogen werden.
Aus dem Inhalt:
- Fachliche Modellierung der Gesch{\"a}ftsarchitektur - Prozess- und Dom{\"a}nenmodell
- Webservice-Stack - Grundlagen von BPEL und Umsetzung von Anwendungen mit BPEL
- Qualit{\"a}tssicherung f{\"u}r Serviceorchestrierungen - Testen von BPEL-Prozessen
In einem Gastkapitel werden die L{\"o}sungen einiger Hersteller im Bereich SOA/BPM
mit BPEL kurz vorgestellt. Im Anhang befinden sich eine Einf{\"u}hrung in XPath und
XSLT, Review-Materialien sowie Installationshinweise f{\"u}r Apache ODE, Eclipse
BPEL-Designer und BPELUnit.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=BOOK-2011-01&engl=0}
}