 Process Default - Detects the process state of an object, and performs processing necessary to deliver unprocessed or partially processed objects to a fully processed state.

 Process Full - Processes an Analysis Services object and all the objects that it contains. When Process Full is executed against an object that has already been processed, Analysis Services drops all data in the object, and then processes the object. This kind of processing is required when a structural change has been made.

 Rebuild Data - Processes data only without building aggregations or indexes.