Carnegie Mellon University, Massachusetts Institute of Technology, Stanford University, University of Memphis. Copyright 2016. All Rights Reserved.

LearnSphere and Tigris

LearnSphere is co-developed by the LearnLab – a flagship project of Carnegie Mellon's Simon Initiative. It is community software infrastructure for sharing, analysis, and collaboration of/around educational data. LearnSphere integrates existing and new educational data infrastructures to offer a world class repository of education data.

Tigris is a workflow authoring tool which is part of the community software infrastructure being built for the LearnSphere project. The platform provides a way to create custom analyses and interact with new as well as existing data formats and repositories.

Appendix A. Technical Details

I. Dependencies

1. Ant 1.9 or greater
2. Java Enterprise Edition Software Development Kit (J2EE SDK)
3. Eclipse or Cygwin.
4. Clone the GitHub repository using git clone https://github.com/PSLCDataShop/WorkflowComponents WorkflowComponents command.
5. BKT contains executables which may need to be rebuilt for your system.
   • From the command-line in WorkflowComponents/AnalysisBkt/program/standard-bkt-public-standard-bkt folder issue the makecommand.
   • Then, copy the predicthmm.exe and trainhmm.exe to the AnalysisBkt/program directory.

II. Documentation

See WorkflowComponents/Workflow Components.docx for detailed information on creating, modifying, or running components.

III. Testing a workflow component in Eclipse, Cygwin, or Linux

A. Eclipse

1. File -> Import -> General -> Existing Projects into Workspace.
2. Choose any component directory from your newly imported git clone, i.e. WorkflowComponents/<AnyComponent>.
3. Click 'Finish'.
4. In the Ant view (Windows -> Show View -> Ant), add the desired component's build.xml to your current buildfiles, e.g. <AnyComponent>/build.xml.
5. Double click the ant task runToolTemplate. The component should produce example XML output if it is setup correctly.

NB: For debugging, you may wish to add the jars in the directory WorkflowComponents/CommonLibraries to your build path.

B. Cygwin or Linux

1. Change to your WorkflowComponents directory, e.g. /cygdrive/c/your_workspace/<AnyComponent>/
2. Issue the command ant -p to get a list of ant tasks
3. Issue ant runComponent to run the component with the included example data

IV. Building components

Build all components

Modify the dir variable in WorkflowComponents/build.sh to match your WorkflowComponents path, then run the script (requires bash)

Building a single component

Issue the ant dist command.