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Empirical Studies in Process Model Verification [chapter]

Jan Mendling
2009 Lecture Notes in Computer Science  
Despite the large body of knowledge on formal analysis techniques for process models, in particular Petri nets, there has been a notable gap of empirical research into verification.  ...  In this paper we compare the few studies that report results from applying verification techniques to real-world process model collections.  ...  Interactive Verification In [38, 11] the authors introduce an interactive approach for the verification of EPCs. In a first step, reduction rules are automatically applied on the original EPC.  ... 
doi:10.1007/978-3-642-00899-3_12 fatcat:xilgxwebz5gqphtygrmxwm6yxu

Formalization and Verification of EPCs with OR-Joins Based on State and Context [chapter]

Jan Mendling, Wil van der Aalst
2007 Lecture Notes in Computer Science  
The semantics of the OR-join in business process modeling languages like EPCs or YAWL have been discussed for a while. Still, the existing solutions suffer from at least one of two major problems.  ...  In this paper, we present a novel semantical definition of EPCs that addresses these aspects yielding a formalization that is applicable for all EPCs and for which structuredness is a sufficient condition  ...  Contribution and Limitations In this paper we presented a novel semantics definition for EPCs covering also the behavior of the OR-join.  ... 
doi:10.1007/978-3-540-72988-4_31 fatcat:uikltubssbba7fezt5pa4pl4vu

Detection and prediction of errors in EPCs of the SAP reference model

J. Mendling, H.M.W. Verbeek, B.F. van Dongen, W.M.P. van der Aalst, G. Neumann
2008 Data & Knowledge Engineering  
We translated these EPCs into YAWL models, and analyzed them using the verification tool WofYAWL. We discovered that at least 34 of these EPCs contain errors.  ...  Moreover, we used logistic regression to show that complexity of EPCs has a significant impact on error probability.  ...  However, EPCs are frequently used in such a way that the expected behavior is captured, but exceptional situations are not explicitly handled.  ... 
doi:10.1016/j.datak.2007.06.019 fatcat:neejudfcjjcgzatczurbtbbwda

Transformation of yEPC business process models to YAWL

Jan Mendling, Michael Moser, Gustaf Neumann
2006 Proceedings of the 2006 ACM symposium on Applied computing - SAC '06  
In this paper, we define a transformation between yEPCs which is an extension to the popular Event-driven Process Chain (EPC) and YAWL, a formal workflow language that is able to capture all of the 20  ...  Thirdly, yEPC models can be analyzed with YAWL verification tools.  ...  Furthermore, in case of a deadlock in the yEPC the corresponding YAWL-net is most likely to show incorrect behavior in terms of not being sound (for soundness of YAWL models see [2] ).  ... 
doi:10.1145/1141277.1141572 dblp:conf/sac/MendlingMN06 fatcat:s4qa2pmmbvfppnxmnqrk5q2afi

BRIDGING THE GAP BETWEEN BUSINESS MODELS AND WORKFLOW SPECIFICATIONS

JULIANE DEHNERT, WIL M. P. VAN DER AALST
2004 International Journal of Cooperative Information Systems  
Instead it is assumed that the desired behavior is just a subset of the full behavior obtained using a liberal interpretation of the informal business process modeling language.  ...  Using a new correctness criterion (relaxed soundness), it is verified whether a selection of suitable behavior is possible.  ...  As effect the forbidden state transitions become disabled, while the rest of the behavior stays the same.  ... 
doi:10.1142/s0218843004000973 fatcat:bdgal4t6yrafroajlz5hni4ire

Getting Rid of the OR-Join in Business Process Models

J. Mendling, B.F. van Dongen, W.M.P. van der Aalst
2007 11th IEEE International Enterprise Distributed Object Computing Conference (EDOC 2007)  
In particular, we present a new approach to map a conceptual process model with OR-joins (expressed in terms of an EPC) onto an executable model without OR-joins (expressed in terms of a Petri net).  ...  All of this has been implemented in the context of the ProM framework.  ...  Finally, it is worth mentioning that regions have been used in many different settings, e.g., for the synthesis and verification of asynchronous circuits [10] or for the verification of security properties  ... 
doi:10.1109/edoc.2007.10 dblp:conf/edoc/MendlingDA07 fatcat:abtuhxsstrb2boniper7tnps5u

Getting Rid of the OR-Join in Business Process Models

J. Mendling, B.F. van Dongen, W.M.P. van der Aalst
2007 International Enterprise Distributed Object Computing Conference, Proceedings  
In particular, we present a new approach to map a conceptual process model with OR-joins (expressed in terms of an EPC) onto an executable model without OR-joins (expressed in terms of a Petri net).  ...  All of this has been implemented in the context of the ProM framework.  ...  Finally, it is worth mentioning that regions have been used in many different settings, e.g., for the synthesis and verification of asynchronous circuits [10] or for the verification of security properties  ... 
doi:10.1109/edoc.2007.4383977 fatcat:jpc3qzx7yfhy3aem46tc7erd74

Four Steps Towards Sound Business Process Models [chapter]

Juliane Dehnert
2003 Lecture Notes in Computer Science  
As a prominent example, widely accepted in practice, are Event-driven Process Chains (EPCs). For the definition of the workflow specification we use a particular type of Petri nets.  ...  It supports domain experts in their modeling of business processes in a semiformal manner and guides them stepwise towards a formal workflow specification, i.e. helping to bridge the gap between business  ...  However, verification issues are neglected. In [RD98] fundamentals of the ADEPT Workflow Model are presented.  ... 
doi:10.1007/978-3-540-40022-6_4 fatcat:o3bg66egyrfx5dwva65j3mfuey

What business process modelers can learn from programmers

Volker Gruhn, Ralf Laue
2007 Science of Computer Programming  
One purpose of such models is to serve as a base for communication between the stakeholders in the software development process.  ...  By analyzing 285 BPMs (modeled as Event Driven Process Chains (EPC)), we found that checking restrictions for "good modeling style" has three positive effects: It can improve the quality of the BPM by  ...  We are convinced that the ideas presented in this article can help to improve the quality of BPMs.  ... 
doi:10.1016/j.scico.2006.08.003 fatcat:dnrue5hsojfzlg6yf4ap6zcs2q

Beautiful Workflows: A Matter of Taste? [chapter]

Wil M. P. van der Aalst, Michael Westergaard, Hajo A. Reijers
2013 Lecture Notes in Computer Science  
This provides advantages in terms of expressiveness, extendibility, and implementation efficiency.  ...  Each of these systems aims to describe and support business processes in an elegant manner. However, there are significant differences. In this paper, we aim to identify and discuss these differences.  ...  Acknowledgements This work was supported by the Basic Research Program of the National Research University Higher School of Economics (HSE).  ... 
doi:10.1007/978-3-642-40355-2_15 fatcat:emjylbmnjbdnbk3vzgtfvxfbym

Application of Subject-Oriented Modeling in Automatic Service Composition [chapter]

Erwin Aitenbichler, Stephan Borgert
2010 Communications in Computer and Information Science  
Next generation SOA systems promise to enable an "Internet of Services" (IoS) -an open environment, in which every participant is free to offer and consume services.  ...  In this paper, we discuss the suitability of different process definition languages for automatic service composition, show that subject-oriented modeling with PASS is well-suited for this domain, and  ...  Acknowledgments This work was supported by the Theseus Programme, funded by the German Federal Ministry of Economy and Technology under the promotional reference 01MQ07012.  ... 
doi:10.1007/978-3-642-15915-2_6 fatcat:6fi4axwehzhphgcvwoa2aym2qu

Isolating Real-Time Safety-Critical Embedded Systems via SGX-based Lightweight Virtualization [article]

Luigi De Simone, Giovanni Mazzeo
2019 arXiv   pre-print
In this position paper, we propose the usage of Intel's CPU security extension, namely SGX, to enable the adoption of enclaves based on unikernel, a flavor of OS-level virtualization, in the context of  ...  These enable the deployment of both real-time and general-purpose systems with different criticalities in a single host.  ...  In this sense, a unikernel could represent a solution. Its properties of an extra lightweight OS can certainly facilitate the certification process in terms of software verification.  ... 
arXiv:1909.09486v1 fatcat:2eenepltozg2foealytyvbriqi

Business Process Management: A Comprehensive Survey

Wil M. P. van der Aalst
2013 ISRN Software Engineering  
This survey aims to structure these results and provide an overview of the state-of-the-art in BPM. In BPM the concept of a process model is fundamental.  ...  Business Process Management (BPM) research resulted in a plethora of methods, techniques, and tools to support the design, enactment, management, and analysis of operational business processes.  ...  Whereas in a procedural model, everything is forbidden unless explicitly enabled, a declarative model allows for anything unless explicitly forbidden.  ... 
doi:10.1155/2013/507984 fatcat:nbrcrvwnwnh6rgttbyj7vy4xhm

Creating Declarative Process Models Using Test Driven Modeling Suite [chapter]

Stefan Zugal, Jakob Pinggera, Barbara Weber
2012 Lecture Notes in Business Information Processing  
To cater for this problem, in particular to improve the understandability of declarative process models as well as the communication between domain experts and model builders, Test Driven Modeling (TDM  ...  In this tool paper we introduce Test Driven Modeling Suite (TDMS) which provides operational support for TDM.  ...  ., behavior that should be forbidden by the process model. Test Driven Modeling Constraints, as introduced in Section 2, focus on forbidden behavior.  ... 
doi:10.1007/978-3-642-29749-6_2 fatcat:h4x2madlmfd7da35bgubdf7c5i

Phonon-induced renormalization of electron wave functions

Jae-Mo Lihm, Cheol-Hwan Park
2020 Physical review B  
Our theory can describe both the diagonal and off-diagonal components of the Debye-Waller self-energy in a simple, unified framework.  ...  as in temperature-driven topological transitions.  ...  For example, in Ref. 17 , the renormalized electron energy was calculated only at Γ where the wavefunction hybridization is forbidden due to the inversion symmetry.  ... 
doi:10.1103/physrevb.101.121102 fatcat:7dgvqvqtx5dsbe4427skl6f7sy
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