Situation Events attached to a Situational Scope must specify the following attributes, which we use to define the operational semantics: Similar to Situation Events, which are used as start activities, a (i) situation name as well as (ii) the identifier of the object to be observed must be specified for Situation Events attached to Situational Scopes. The attribute (iii) EntryMode defines what has to be done if the situation does not prevail when the control flow of the process reaches the scope.