5. Each data sink is a small microservice, written in dropwizard and packaged as a docker container. They are self-hydrating and is sourced through S3.
6. Mapper
7. Mapper's responsibility is to create a meta graph, which connects different data sets together and consolidates the data.
8. Mapper functions.
9. List of small functional units, whose responsibility is to maintain standard terminologies and map external lexial entities to standard concepts.
