denotes has_specified_input bearer of has participant has role planned process participant under investigation role investigation agent role informing investigator of subject study arm 09/28/2009 Alan Ruttenberg. This and the class informing-subject-of-study-arm are defined in order to solve the question of how to represent single and double blind experiments. To represent the aspect of double blinding pertaining to investigators, we say that the study execution doesn't include any processes of this sort 2009/09/28 Alan Ruttenberg. Fucoidan-use-case A process in which an investigator is made aware of which study arm that a patient is participating in, for example whether they are receiving a placebo or a treatment with an investigational compound. Person:Alan Ruttenberg informing investigator of subject study arm metadata complete