i2b2 has turned out to be a very valuable component for secondary use of routine clinical data. Its pragmatic database schema allows merging of data from heterogeneous data sources, and the intuitive user interface enables easy querying and powerful processing. However, it's a component rather than a complete solution: The user is facing several barriers when integrating i2b2 into the operational workflow.
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ART-DECOR is an open-source tool suite that supports the creation and maintenance of HL7 Templates, Value Sets as well as Data Sets and features cloud-based federated Building Block Repositories (BBR) for Templates and Value Sets. The tool offers a Data Set and a Scenario editor, two Template editors, a Value Set editor and includes browsers for various international terminologies such as LOINC.