...
Define or align common data elements (CDEs). For a new data collection: check if there is a set of CDEs in your domain that you can reuse, otherwise newly define CDEs whose semantics are clear and unambiguous; for an existing data set, existing data elements can be aligned to CDEs.Concrete example:
Set of For more, please refer to the Metroline Step: Apply common data elements for Rare Diseases Registration.https://datascience.cancer.gov/news-events/blog/semantics-series-deep-dive-common-data-elements
Expertise requirements for this step
...