Completion requirements
Read this article. Be sure you can explain the methods (approach) for extracting data based on usability.
6. Enabling Technologies
There are several technologies that can be employed to effectively implement the Data Publication procedures and, thus, to overcome the impediments to data reuse. Some of them enable data discoverability, some others data understandability, and others make data assessable. Altogether, these technologies contribute to make scientific data reusable. We have identified seven main enabling technologies: modeling metadata information, building and aligning domain-specific ontologies, discovering data, enabling data exchangeability, linking data to publications, linking open data, and applying standards.