Lifetime of a busines rule policy

These are 3 different states of a policy:

1. Editable - this is the initiate state of a new policy. In this state, you are able to add, remove, edit. You can also "save" the policy for later editing.
2. Published - after a policy has been published, it becomes read-only. In this state, you can remove it, but you cannot move it back to its initiate state (Editable). The policy is not available for execution in this state. This is considered as staging state before deployment.
3. Deployed - this is the state where the policy can actually be used by using the call-rule shape or the policy class. In this state, it cannot be removed. It has to be un-deploy to "Pulished" state before a policy can be removed. Once policy is un-deployed, it will not be available for execution any more.