1. BIS-Grid: Business Workflows for the Grid Stefan Gudenkauf 1, Felix Heine 2, André Höing 2, Guido Scherp 1 1 OFFIS Institute for Information Technology 2 Technical University of Berlin

2. Agenda  The BIS-Grid Project  Enterprise Application Integration (EAI)  EAI with Grid Technology: Benefits  Workflows in Grid Computing  Partners / Scenarios  Technical Solution  Challenges  BIS-Grid Service  Architecture  Security Issues  Conclusion 2

3. Enterprise Application Integration  Typical Components in Enterprise IT  Enterprise Resource Planning  Customer Relationship Management  Product Data Management  Additionally  Different Departments  Legacy Systems  Integration Challenges  Integration of Information Systems  Workflow Support  Service Oriented Architecture 3

4. EAI with Grid Technology  SOA are the de-facto standard for EAI  (WSRF-) Grids are SOAs with extended capabilities  So let's use Grids for EAI!  Benefits:  Organizational: New types of collaboration (B2B) and new business models  Technical: More flexibility, virtualisation layer, better resource usage, more dynamic  Goal of BIS-Grid:  Proof of Concept, Exemplary Scenarios, D-Grid Integrated Solution 4

5. Workflows in Grid Computing  Workflows in many Grid projects, e.g.:  Germany: C3-Grid, InGrid, UNICORE, Fraunhofer Resource Grid  EU (FP5): GRASP, GRIA, GEMMS, OpenMolGrid, GridLab  EU (FP6): A-WARE, Akogrimo, Chemomentum, CoreGRID, DEISA, Diligent, EGEE, ELeGI, K-WF Grid, SIMDAT, UniGrids, SODIUM, TrustCoM  International: Askalon, DAGMan, g-Eclipse, GridANT, Gridbus, GriPhyN, ICENI, JOpera, Karajan, Kepler, TeraGrid, myGrid Scientific WorkflowsBusiness Workflows 5

6. EAI: Classic Scenario 6

7. Grid-based EAI 7

8. CeWe Color Call-Center Process 8

9. Partners in the Project 9

10. Challenges  WS-BPEL / WSRF Integration  Use WS-BPEL to call WSRF Services  Make a WS-BPEL workflow available as WSRF Service  Use an existing WS-BPEL engine  UNICORE 6 Integration  Workflow-Engine as UNICORE 6 component  Scalability / Performance  Security / Policies  Accounting / Billing / Monitoring  Human Interaction in Workflows  Service Level Agreements 10

11. BIS-Grid Service  How to teach WSRF to the WS-BPEL Engine?  e.g. ActiveBPEL: Source-Code is available  However:  Upgrade problems  No exchangeability of the WS-BPEL engine  Better Solution  Transparent WSRF Layer above WS-BPEL Engine WS-BPEL Engine BIS-Grid Service Layer WSRF Interface 11

12. Architecture 12

13. Conclusion  EAI is a main challenge in Enterprise IT  Grid Technology is a good basis for EAI  Benefits:  Additional Flexibility  New Business Models  New Collaborations  Innovative Technical Solutions  WSRF / WS-BPEL Integration  Scalable UNICORE / WS-BPEL Integration  BIS-Grid Service  Challenges: Performance, Security 13