Progress of a given task part.

Item Summary
Name	Type	Multiplicity	Description
partUri	property anyURI	[0,1]	URI of the task part.
closed	container OutcomeKeyedCounterType	[0,-1]	Counters representing items that were processed and are stored in closed buckets.
open	container OutcomeKeyedCounterType	[0,-1]	Counters representing items that were processed but their bucket is not closed yet.
complete	property boolean	[0,1]	True if this part is complete.

Items
- partUri
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
  
  URI of the task part.
- closed
  
  Flags: RAM,runtime
  
  Multiplicity: [0,-1]
  
  Counters representing items that were processed and are stored in closed buckets. These items will not be re-processed if the task would start over. TODO better name
- open
  
  Flags: RAM,runtime
  
  Multiplicity: [0,-1]
  
  Counters representing items that were processed but their bucket is not closed yet. In the case of task restart, these will be re-processed. TODO better name
- complete
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
  
  True if this part is complete.