Implementing a Learning Record Warehouse for Different Interoperability Specifications in Moodle LMS
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Semantic interoperability is an important aspect in Learning Analytics systems, allowing data from various sources to be processed by a central application while preserving its original meaning. In this regard, there are two specifications that enable interoperability for Learning Analytics: Caliper Analytics and the Experience API (xAPI). This study presents the implementation of a Learning Record Warehouse (LRW) for storing Moodle logs, using the specifications Caliper Analytics and xAPI. OpenLRW was chosen as the platform to store data collected by plugins responsible for gathering Moodle logs in Caliper Analyzer and xAPI formats. Despite OpenLRW having an internal converter to convert data from xAPI to Caliper Analyzer format, some bottlenecks were identified during the experiments conducted within this study. © 2024 IEEE.
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Caliper Analyzer, Learning Analytics, Learning Record Ware-house, Moodle, Standards, xAPI, Data handling, Interoperability, Semantics, Warehouses, Analytics systems, Caliper analyzer, Learning analytic, Learning record, Learning record ware-house, Moodle, Plug-ins, Semantic interoperability, XAPI, Specifications