what is the purpose/usage for the EventKit EKEvent "organizer" property?

what is the purpose/usage for the EventKit EKEvent "org开发者_StackOverflow中文版anizer" property?

The doco says "The organizer associated with the event" however I'm not sure what this means.

Organizer property refers to the "organizer of the event (or calendar) event". If you start with this wiki page, you'll soon find RFC2446 to read!; search here the stand-out quote is:

The CU (Calender User) who initiates an exchange takes on the role of "Organizer"