Model Governance
After comparing models, you must understand the Model Governance system in OFS MMG. The Model Governance has an impact on how the application functions with the various user types and the requests they can place from the Model Details window. You require to understand Model Governance before you request model acceptance, review models, or approve models for production.
As discussed earlier, the users are of three types:
- Requester
- Reviewer
- Approver
The request consists of the following phases in the Request drop-down list (see the Request Model Acceptance section for how to access the drop-down list in the Model Deployment window):
- Model Acceptance
- Model Acceptance + Promote to Production
- Promote to Production
- Make - Champion - Global
- Make - Champion - Local
- Retire Champions
Figure 8-85 The Request Drop-down List
The values in the drop-down list are active based on the type of user (Requester, Reviewer, or Approver) and the phase that the model is in (accepted, promoted to production, global champion, and so on). Let us look at these with a few examples.
Example 1:
Assume that you are a user with Requester privileges, and you create a model. Now you can request for the model to be accepted on the Model Details window from the Request drop-down list. The values enabled for selection are Model Acceptance and Model Acceptance + Promote to Production. Let us proceed and assume that you select Model Acceptance, then a user with Reviewer privileges forwards your model to a user with Approver privileges. At this stage, the Approver can choose to reject or accept your model acceptance request. A rejection would bring the model back to the initial state with comments on the updates required before it can be requested for acceptance again. However, if the Approver accepts your model, then the Make Champion- Local selection is enabled when you log in. You can create many models and send them for acceptance. After acceptance, any model that is accepted can be made the champion on your local workspace at any time replacing the earlier local champion.
Example 2:
Assume that in the previous example, you selected Model Acceptance + Promote to Production, then a Reviewer forwards it to the Approver. The Approver, at this stage, chooses to promote the model to production by selecting Promote to Production. The model is now available in the production environment and the Approver can choose at any time to select a model from these models in production and select Make Champion- Global. If there exists a Champion model in the production environment, then it will be replaced by the new global champion. However, the earlier champion will still be available in the production environment along with other models and the Approver can choose to make it the global champion again at any time or select any of the other models and make one of them the global champion.