Is child of Used to indicate that one entity is an immediate child of another entity. For example, this term can be used to express the fact that an instrument deployment Action is the child of a site visit Action. Used for related Actions. ODM2 Controlled Vocabulary Relationship Type CV ODM2 Working Group 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).