Defines an object per group which can be used to schedule long running
deadlines for the group.
The deadlines can be scheduled on this object as on every other object.
Note.: if the deadline should be executed on a specific object e.g an AppConfigurationRoom
or an AppRoom the object must be supplied in attribute ndparameterobjs
the deadlines aggregate longtermdeadlines
. The parameter object is available
in the global scope in the evaluation of the deadline.