Common Manipulation of Objects

You move to an object because you want to manipulate it. You can get or set a property, delete an object, delete a relationship between two objects, or add a relationship between two objects. The software bug reporting example illustrates some common manipulations:

• Get a property. Retrieve a bug's description for filling out a bug report.
  
  
• Set a property. Change a bug's priority from moderate to urgent.
  
  
• Delete an object. Delete a new bug because it replicates an already reported bug.
  
  
• Delete an object. Disassociate a program from a bug when an employee associates a bug with a program before the bug has been accurately diagnosed.
  
  
• Add a relationship between two objects. Associate an existing but previously undiagnosed bug with a program.