TY  - JOUR
A1  - Berretz, Frank
A1  - Skorupa, Sascha
A1  - Sander, Volker
A1  - Belloum, Adam
T1  - Towards an actor-driven workflow management system for grids
JF  - Proceedings of 2010 International Symposium on Collaborative Technologies and Systems
N2  - Currently, most workflow management systems in Grid environments provide push-oriented job distribution strategies, where jobs are explicitly delegated to resources. In those scenarios the dedicated resources execute submitted jobs according to the request of a workflow engine or Grid wide scheduler. This approach has various limitations, particularly if human interactions should be integrated in workflow execution. To support human interactions with the benefit of enabling inter organizational computation and community approaches, this poster paper proposes the idea of a pull-based task distribution strategy. Here, heterogeneous resources, including human interaction, should actively select tasks for execution from a central repository. This leads to special demands regarding security issues like access control. In the established push-based job execution the resources are responsible for granting access to workflows and job initiators. In general this is done by access control lists, where users are explicitly mapped to local accounts according to their policies. In the pull-based approach the resources actively apply for job executions by sending requests to a central task repository. This means that every resource has to be able to authenticate against the repository to be authorized for task execution. In other words the authorization is relocated from the resources to the repository. The poster paper introduces current work regarding to the mentioned security aspects in the pull-based approach within the scope of the project “HiX4AGWS”.
KW  - scheduling
KW  - engines
KW  - resource management
KW  - grid computing
KW  - access control
KW  - distribution strategy
KW  - authorization
KW  - security
KW  - humans
KW  - workflow management software
Y1  - 2010
SN  - 978-1-4244-6619-1
U6  - https://doi.org/10.1109/CTS.2010.5478458
N1  - 2010 International Symposium on Collaborative Technologies and Systems, 17-21 May 2010, Chicago, IL, USA
SP  - 611
EP  - 616
PB  - IEEE
CY  - Piscataway, NJ
ER  - 
TY  - JOUR
A1  - Berretz, Frank
A1  - Skorupa, Sascha
A1  - Sander, Volker
A1  - Belloum, Adam
A1  - Bubak, Marian
T1  - Actor-Driven Workflow Execution in Distributed Environments
JF  - Euro-Par 2010 Parallel Processing Workshops : HeteroPAR, HPCC, HiBB, CoreGrid, UCHPC, HPCF, PROPER, CCPI, VHPC ; Ischia, Italy, August 31 - September 3, 2010 ; revised selected papers / Mario R. Guarracino ... (eds.)
Y1  - 2011
SN  - 978-3-642-21877-4
N1  - Lecture Notes in Computer Science ; 6586
SP  - 287
EP  - 294
PB  - Springer
CY  - Berlin
ER  -