According to the SAP document "Predictive Maintenance and Service" , a training dataset is required to train a predictive model, and a testing dataset is required to evaluate the performance of the model. An apply dataset is not a type of dataset, but a step in the predictive scenario. An active dataset is not a term used in the SAP document.

According to the Asset Management in SAP S/4HANA Cloud, public edition Learning Journey2, in an emergency maintenance process you can assign a user status to maintenance orders and operations, notifications, or technical objects. Maintenance orders and operations are documents that contain the information and activities required for performing maintenance work on an asset or equipment. Notifications are documents that describe an issue or problem with an asset or equipment. Technical objects are objects that represent physical assets or pieces of equipment that are maintained in an organization.