A specialisation of ObsUnit that holds a collection of ObsUnits, This allows the creation of arbitrary structures, and also forms the container for SchedBlocks. Attributes allow the definition of data processing scripts that will occur at specific levels in the hierarchy.
Note that the "top level" ObsUnitSet within an Observing Phase has a role name of "ObsPlan". This is to indicate that it describes the actual observing plan, described in the ALMA "system view" intended executed at the observatory. (For PhaseI this ObsPlan, if it is detailed, is still to be confirmed and will never get executed. For Phase II it is what was approved and must be detailed and valid as it contains what will be executed).

General Info
Name	ObsUnitSet
Owner	obsproject
Base Classifier	ObsUnit
Visibility	public
Is Active	false
Is Abstract	false

Inner Elements
Name	Type
unnamed	Generalization
unnamed	Instance Specification

Relations
Name	Type	Begins	Ends
unnamed	Association	OUSStatus	ObsUnitSet
unnamed	Association	FlowControl	ObsUnitSet
unnamed	Association	ObsPhase	ObsUnitSet
unnamed	Generalization	ObsUnitSet	ObsUnit
unnamed	Association	SchedBlock	ObsUnitSet
unnamed	Association	DataProcessingParameters	ObsUnitSet
unnamed	Association	AbstractScienceGoal	ObsUnitSet
unnamed	Association	ObsUnitSet	ObsUnit

Attributes
Name	Type	Classifier	Default Value
scienceProcessingScript	String	ObsUnitSet
unnamed	ObsUnit	ObsUnitSet
unnamed	DataProcessingParameters	ObsUnitSet
unnamed	ObsPhase	ObsUnitSet
runSciencePipeline	Boolean	ObsUnitSet	false
unnamed	OUSStatus	ObsUnitSet