Experiment

OBJECT CLASS Experiment 
             isa* Xobject
  DESCRIPTION: "Configuration of devices and subdevs at the
                  ALS Beam Line 7, with the purpose of acquiring
                  data via spectro-microscopy analytical methods."
  REP: title
  ATTRIBUTE project: [1,1] Project
  ATTRIBUTE title: [1,1] CHAR(50)
            DESCRIPTION: "Experiment title"
  ATTRIBUTE purpose: [0,1] CHAR(250)
            DESCRIPTION: "Statement explaining the goals of the expmt"
  ATTRIBUTE history(date, oldPurpose):
                list-of [0,] ([1,1] DATETIME,  [1,1] VARCHAR(255))
                DESCRIPTION: "history of old purposes"
  ATTRIBUTE scans: set-of [0,] Scan
            DESCRIPTION: "Scans already done for this expmt"
  ATTRIBUTE plots: set-of [0,] Plot
            DESCRIPTION: "Important plots - see Plot"
  ATTRIBUTE pictures: set-of [0,] Picture
            DESCRIPTION: "Important pictures taken during the expmt"
  ATTRIBUTE procedures: list-of [0,] ENProc
            DESCRIPTION: "Procedures carried out during course of experiment"

An experiment is used to model actions that culminate in real measurements. An experiment is mainly composed by scans, but also has procedures, annotations, plots, and pictures.