Operational Technology change approval

The Operational Technology (OT) change approval lets reviewers approve your requested changes and suggest improvements as necessary.

Change approval overview

An OT change approval with the Advanced OT Change Model enables approvers to review a change request, edit the request as necessary, and approve the change request.

Note:

The change approval only applies to the Advanced OT Change Model. There’s no change approval policy applied to the Basic OT Change Model.

Table 1. Change approval requirements

Requirement	Description
Site level	Site or area where the change takes place.
Site approval group	Members assigned to an approval group that can review and approve change requests.
Role required	Approvers must have the sn_ot_change_read role.
Percentage of approvals	51% of the approval group has to approve the change for it to move forward.

OT change approval flow

The OT change approval flow is as follows.

1. Create the change request.
2. The flow is invoked based on the change model.
3. The flow applies the change approval policy.
4. Various decision records are evaluated.
5. Matching approval definitions are executed.
6. Add a list of site level approvers to the change record.

The Advanced OT Change Model contains a change approval policy. You can also create your own approval policy. For more information about how to create an approval policy, see Create change approval policies.

• Add an approver to review a change request
  Add a group member, or approver, manually to your approval group to review your Operational Technology (OT) change request.