Ed,

Doing this in Application Service is something I've seen. However, the "Blueprint" for CSDM 2.1 and incident shows the following print screen. From a user perspective the incident is logged against the Business Service and Business Service Offering. With this approach, there's no need to break out separate application services. If one chooses not to implement Business Services in a crawl model, you'd need to do the same thing in Application Services. This would for a time, but I believe it would be subject to re-work when moving to the walk model. Also, it may require making a hierarchy of Application Services to avoid service mapping redundancy.

The CSDM 2.1 can be found in the Now Learning CSDM training which is fairly new.

Paul