Session Title: Deployment of Flows

Importance of the Topic

Meandre's success relies on its ability to easily assemble data-intensive ﬂows. Flows may be easily assembled by using the Meandre Workbench, an icon based programming environment for assembling data-intensive ﬂows. Although we are using RDF for describing flows and components, it is not very human readable. So the ability to script the creation of the flow is important. We will describe ZigZag, the scripting language for Meandre and demonstrate how it easy it makes the deployment of flows. ZigZag targets rapid application development by speeding up the ﬂow construction cycle and addressing parallelization.

Focus of the Topic

Upon completion of this session, participants will:

Understand how ZigZag can accelerate the data-intensive ﬂow development cycle and how it can be used to create a self-contained flow task for later execution
Understand the usage of the ZigZag scripting language for Meandre
Know how to generate a ZigZag script from an existing flow
Know how to indicate the level of parallelism for improving performance
See how the ZigZag scripts are deployed for Zotero and Fedora

Format of the Session

Presentation
Demonstration
Learning Exercise
Discussion Questions
Summary and Review

Presentation

Slides can be found at http://dev-tools.seasr.org/confluence/display/Outreach/Presentations
Tutorial can be found at http://dev-tools.seasr.org/confluence/display/COOK/ZigZag+Tutorial

Demonstration

Usage of ZigZag
Compiling and executing flows using ZigZag
Usage of ZigZag for Zotero-enabled flows
Usage of ZigZag for Fedora flows

Learning Exercises

Open an existing ZigZag flow
Convert your flow from yesterday to ZigZag
Compile the script
Execute the script

Discussion Questions

Which environment would you most likely use, the Meandre Workbench or the ZigZag scripting language?

ZigZag