- an attendant in a hospital responsible for the non-medical care of patients and the maintenance of order and cleanliness.
- a soldier who carries orders or performs minor tasks for an officer.
A research group with a potentially changing SQL database who want to create reports (knitr documents, csv exports, graphics) from the database but who want to be able to trace back from a report to metadata about what created it.
- (optional) Establish temporary SQL views in the database
- Run one or more queries against the database and extract a set of data
- Run an R script against the exported tables, producing one or more report artefacts
- Save a set of metadata
- Archive the exported data set