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CASA Protocol

The Community App Sharing Architecture (CASA) provides a mechanism for discovering and sharing metadata about web resources such as websites, mobile apps and LTI tools. It models real-world decision-making through extensible attributes, filter and transform operations, flexible peering relationships, etc.

The CASA Protocol defines a set of conformance modules for communication APIs and data formats that enable the architecture. Click here to view an online version of the protocol.

Status

The CASA Protocol Specification is in a 1.0.0-beta.1 release. The basic structure of the protocol is complete, but changes (especially regarding Attributes) are expected. Please check the change log in this directory CHANGELOG.md.

If you are hosting a CASA peer and you would like to connect with other peers, please get in touch. We are working towards creating CASA specification conformance guidelines and tests as well as a web-based registry of CASA instances.

For more information about IMS Global and the CASA Task Force, please see http://www.imsglobal.org/casa/.

Instances

There are several public CASA instances out in the wild.

License

The CASA Protocol is open source and licensed under the Apache 2 License license. The full text of the license may be found in the LICENSE file.

Credits

Editor
  • Rocchio, Rose (University of California, Los Angeles)
Contributors
  • Bollens, Eric (University of California, Los Angeles)
  • Gray, Paul (Learning Objects, Inc.)
  • Mattson, Lisa (IMS Global Learning Consortium, Inc.)
  • Mosbacker, Bracken (Instructure, Inc.)
  • Rocchio, Rose (University of California, Los Angeles)
  • Sakabu, Edward (University of California, Los Angeles)
  • Selsky, Joshua (University of California, Los Angeles)
  • Vickers, Stephen (IMS Global Learning Consortium, Inc.)

Copyright Notice

© 2014-2016 IMS Global Learning Consortium, Inc. All rights reserved. IMS Learning Tools Interoperability® (LTI®) is a trademark of the IMS Global Learning Consortium, Inc. in the United States and/or other countries.