Information on items processing (for activity state overview).

Item Summary
Name	Type	Multiplicity	Description
expectedTotal	property int	[0,1]	Expected total progress for an activity, if known.
successfullyProcessed	property int	[0,1]	How many items have been successfully processed?
failed	property int	[0,1]	How many items have failed to be processed?
skipped	property int	[0,1]	How many items have been skipped?

Items
- expectedTotal
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
  
  Expected total progress for an activity, if known. (Always null for worker tasks.)
- successfullyProcessed
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
  
  How many items have been successfully processed?
- failed
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
  
  How many items have failed to be processed?
- skipped
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
  
  How many items have been skipped?