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Worklets: A Service-Oriented Implementation of Dynamic Flexibility in Workflows [chapter]

Michael Adams, Arthur H. M. ter Hofstede, David Edmond, Wil M. P. van der Aalst
2006 Lecture Notes in Computer Science  
This paper presents the realisation, using a Service Oriented Architecture, of an approach for dynamic flexibility and evolution in workflows through the support of flexible work practices, based not on  ...  A set of principles have been derived from a sound theoretical base and applied to the development of worklets, an extensible repertoire of self-contained sub-processes aligned to each task, from which  ...  The Worklet Custom Service for YAWL The Worklet Dynamic Process Selection Service has been implemented as a YAWL Custom Service [15, 16] .  ... 
doi:10.1007/11914853_18 fatcat:5lff5pi76fbgzhao2qda3bxfxe

BP Variability Case Studies Development using different Modeling Approaches [article]

Clara Ayora, Victoria Torres, Vicente Pelechano
2011 arXiv   pre-print
Depending on the context in which each author faces the modeling problem, we find different approaches (C-EPC, C-YAWL, FEATURE-EPC, PESOA, PROVOP, or WORKLETS).  ...  In this report we present four of the most representative approaches (C-EPC, PESOA, PROVOP and WORKLETS) which are presented by means of the different case studies found in the literature.  ...  In this parent process, an extensible repertoire (or catalogue) of worklets is maintained for each nominated task.  ... 
arXiv:1102.4518v3 fatcat:brbtvfnsfrg7jpbwwlm7ls7eoe

A Novel Approach for Bioinformatics Workflow Discovery

Walaa Nagy, Hoda M.
2014 International Journal of Advanced Computer Science and Applications  
On the other hand, Web services are increasingly used as the preferred method for accessing and processing the information coming from the diverse life science sources.  ...  In this work we provide an efficient approach for creating bioinformatic workflow for all-service architecture systems (i.e., all system components are services ).  ...  Each task of a workflow is linked to an extensible repertoire of actions. In this work, we present those repertoire-member actions as "worklets".  ... 
doi:10.14569/ijacsa.2014.051124 fatcat:yyo6zqmyjfbirokclmlspkqrz4

Measuring and Benchmarking Power Consumption and Energy Efficiency

Jóakim von Kistowski, Klaus-Dieter Lange, Jeremy A. Arnold, Sanjay Sharma, Johann Pais, Hansfried Block
2018 Companion of the 2018 ACM/SPEC International Conference on Performance Engineering - ICPE '18  
However, they do not account for multiple load levels and workload combinations. In this paper, we introduce the SPEC power methodology and the tools implementing this methodology.  ...  We discuss the PTDaemon power measurement tool and the Chauffeur power benchmarking framework.  ...  Additional product and service names mentioned herein may be the trademarks of their respective owners.  ... 
doi:10.1145/3185768.3185775 dblp:conf/wosp/KistowskiLASPB18 fatcat:sl6s2smlfjgepmhw7yzffriakq

Cost-Informed Operational Process Support [chapter]

Moe T. Wynn, Hajo A. Reijers, Michael Adams, Chun Ouyang, Arthur H. M. ter Hofstede, Wil M. P. van der Aalst, Michael Rosemann, Zahirul Hoque
2013 Lecture Notes in Computer Science  
The feasibility of our approach is demonstrated using a prototype implementation in the YAWL workflow environment.  ...  The ability to steer business operations in alignment with the true origins of costs, and to be informed about this on a real-time basis, allows businesses to increase profitability.  ...  The Worklet Service traverses its rule set for the activity, querying the Cost Service to evaluate cost-based rule expressions (1.2).  ... 
doi:10.1007/978-3-642-41924-9_16 fatcat:cz77rucekbda7ci2jvpc53vnem

Realisation of Cost-Informed Process Support Within the YAWL Workflow Environment [chapter]

M. Adams, M. T. Wynn, C. Ouyang, A. H. M. ter Hofstede
2015 Lecture Notes in Business Information Processing  
A primary reason for this disconnect is the limited system-based support for cost-informed decisions at the process-operational level in real time.  ...  The paper defines success criteria that a WfMS should meet to provide such support, and discusses a reference implementation within the YAWL workflow environment that demonstrates how the various types  ...  We would like to thank all our colleagues who were involved at various stages of this research study for their valuable input. They include Prof. Wil van der Aalst, Prof. Hajo Reijers, Prof.  ... 
doi:10.1007/978-3-319-19509-4_1 fatcat:3h4cmocm7vek5d2s5gbs2g7x6q

E-Commerce und E-Business: Flexible Business Processes - Evaluation of Current Approaches [chapter]

Thomas Burkhart, Peter Loos
2010 Multikonferenz Wirtschaftsinformatik 2010  
It enables the definition, execution and monitoring of workflows including execution constraints for each integrated service.  ...  The iProcess Suite includes a goal-driven way of composing business processes from re-usable fragments.  ... 
doi:10.17875/gup2010-1373 fatcat:kqkcy4dcafe7bb4yumscyk4mei

Managing Process Model Complexity Via Abstract Syntax Modifications

Marcello La Rosa, Petia Wohed, Jan Mendling, Arthur H. M. ter Hofstede, Hajo A. Reijers, Wil M. P. van der Aalst
2011 IEEE Transactions on Industrial Informatics  
The paper concludes with a comparative overview of the degree of support for these patterns offered by state-of-theart languages and language implementations.  ...  It is thus hard to obtain comparative insight into the degree of support offered for various complexity reducing mechanisms by stateof-the-art languages and tools.  ...  This approach has been implemented in the YAWL system where Worklets can be defined to tasks via the Rules Editor, and instantiated via the Worklet Service.  ... 
doi:10.1109/tii.2011.2166795 fatcat:tb65jtmbjnhxzhadosjcbyy6ze

Approach and Refinement Strategies for Flexible Choreography Enactment [chapter]

Andreas Weiß, Santiago Gómez Sáez, Michael Hahn, Dimka Karastoyanova
2014 Lecture Notes in Computer Science  
Since domain problems in CDC systems are expressed as service choreographies and enacted by service orchestrations, we propose an approach introducing placeholder modeling constructs usable both on the  ...  level of choreographies and orchestrations, and a classification of strategies for their refinement to executable workflows.  ...  Acknowledgment This work is funded by the projects FP7 EU-FET 600792 ALLOW Ensembles and the German DFG within the Cluster of Excellence (EXC310) Simulation Technology.  ... 
doi:10.1007/978-3-662-45563-0_6 fatcat:4w3vz5jytvhrpiopfhaqxelxoq

Change patterns and change support features – Enhancing flexibility in process-aware information systems

Barbara Weber, Manfred Reichert, Stefanie Rinderle-Ma
2008 Data & Knowledge Engineering  
The presented work will not only facilitate the selection of technologies for realizing flexible PAISs, but can also be used as a reference for implementing flexible PAISs.  ...  The emergence of different process support paradigms and the lack of methods for comparing existing approaches enabling PAIS changes have made the selection of adequate process management technology difficult  ...  In addition, we would like to thank Shazia Shadiq, Michael Adams and Werner Wild for the many fruitful discussions, which helped us to significantly  ... 
doi:10.1016/j.datak.2008.05.001 fatcat:zsg26snxc5bhfn4sj5727rkjr4

Personalized activity based eLearning

Ian O'Keeffe, Athanasios Staikopoulos, Rachael Rafter, Eddie Walsh, Bilal Yousuf, Owen Conlan, Vincent Wade
2012 Proceedings of the 12th International Conference on Knowledge Management and Knowledge Technologies - i-KNOW '12  
As part of this research, a novel architecture for the generation of Personalized Learning Activities, which highlights both the need for, and the power of combining and personalizing content and services  ...  The system has been evaluated in the context of a Higher Education use case based on the user's perception of three key elements of the Personalized Learning Activity: the personalization, the usability  ...  the extensions.  ... 
doi:10.1145/2362456.2362459 dblp:conf/iknow/OKeeffeSRWYCW12 fatcat:3jx3dmbsmrhx7ns23ubgtsojtm

Retrofitting Autonomic Capabilities onto Legacy Systems

Janak Parekh, Gail Kaiser, Philip Gross, Giuseppe Valetto
2006 Cluster Computing  
Our lightweight design and separation of concerns enables easy adoption of individual components for use with a variety of target systems, independent of the rest of the full infrastructure.  ...  We present an autonomic infrastructure that operates similarly to active middleware, to explicitly add autonomic services to pre-existing systems via continual monitoring and a feedback loop that performs  ...  on the power and limitations of FleXML as a lan-guage formalism, and Gaurav Kc and Dan Phung for their efforts on Worklets.  ... 
doi:10.1007/s10586-006-7560-6 fatcat:n6din2zoife3pchmmihqmhporq

Configuration vs. adaptation for business process variant maintenance: An empirical study

Markus Döhring, Hajo A. Reijers, Sergey Smirnov
2014 Information Systems  
Yet, an effect of model complexity can be noted on the execution speed for typical variant maintenance tasks like the insertion and deletion of process steps.  ...  For each of the performance measures of success rate, user contentment and execution speed, vBPMN performs significantly better than C-YAWL.  ...  Acknowledgments 1452 We thank Patrick Fischer for methodological support with 1453 the statistical evaluation of our study results.  ... 
doi:10.1016/ fatcat:s3bzavrs6bgcxaxebgr4yrjizq

AMASE: A framework for supporting personalised activity-based learning on the web

Athanasios Staikopoulos, Ian O'Keeffe, Rachael Rafter, Eddie Walsh, Bilal Yousuf, Owen Conlan, Vincent Wade
2014 Computer Science and Information Systems  
of media content and the personalisation of services in a unified manner.  ...  not just web media but web services as well.  ...  YAWL supports the dynamic selection of worklets [32] at runtime based on a set of rules that are written by the workflow designer.  ... 
doi:10.2298/csis121227012s fatcat:fmyywnnd5rfi7efutf3azks5ci

Business Process Extensibility

Sören Balko, Arthur H.M. Ter Hofstede, Alistair Barros, Marcello La Rosa, Michael Adams
2015 Enterprise Modelling and Information Systems Architectures - An International Journal  
This paper introduces process extensibility as a new paradigm for customising reference processes and managing their evolution over time.  ...  Process extensibility mandates a clear recognition of the different responsibilities and interests of reference model vendors and consumers, and is concerned with keeping the effort of customer-side reference  ...  The Extensibility Service takes responsibility for the proper execution of an extension within the scope of an extension point of a reference process.  ... 
doi:10.18417/emisa.5.3.1 dblp:journals/emisaij/BalkoHBRA10 fatcat:mkpfbh5tqfaezme7sb3zuors7m
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