Comparing xAPI and Caliper

Date: 26th August 2016
Version 1-1 of this paper was published on 14th September 2016 in order to provide corrected information about the governance of xAPI.

David (Dai) Griffiths, University of Bolton
Tore Hoel, Oslo and Akershus University College of Applied Sciences, Oslo, Norway

Link: Review 7: Comparing xAPI and Caliper

Citation: Griffiths, D., Hoel, T. Comparing xAPI and Caliper. Learning Analytics Review, no. 7, January 2016, ISSN: 2057-7494.

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Abstract: There are two principal specifications for learning analytics interoperability: Caliper, from IMS, and xAPI, from ADL. Around these two specifications are emerging ecosystems of applications and related specifications. The two specifications are introduced, and their structure and main features outlined. The differences in their approach to development are described, with Caliper being developed by a closed consortium, and xAPI in an open process. Efforts to bring the specifications closer together are outlined, and the some reflections
offered on the strategic implications of the differences between the specifications.

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