Is retrieval for This is necessary for proper implementation of deployments and retrievals in the ODM2 Equipment schema. Action Use to indicate the action is a retrieval of a previous deployment. ODM2 Controlled Vocabulary Relationship Type CV A vocabulary for describing the type of relationship between two entities in an ODM2 database. Examples include related Actions, Results, datasets, etc. The RelationshipType describes the nature of the relationship between the two entity instances (e.g., a Specimen SamplingFeature "was collected at" a Site SamplingFeature). ODM2 Working Group