PID Scheduler Service

Author	Daniel Fisher
Date	2005/12/22

Requirements

PID Shelve Task
1. Ability to shelve a PID
  - PID shelve date must have arrived
  - PID must be in the 'ACTIVE' or 'LOCKED' state before it can be shelved
PID Release Task
1. Ability to release a shelved PID
  - PID must be in the 'SHELVED' state 90 days before it can be moved to the 'TO BE RELEASED' state
  - Should only affect PIDs owned by sponsored and guest people
PID Expiration Task
1. Ability to delete an expired PID
  - PID expiration date must have arrived
  - PID must be in the 'TO BE RELEASED' state before it can be deleted