type	Concrete Class
Immediate Parent
Source Provider
Authority
Cross Reference
Derived From
Name	Activity Occurrence
Description	An event or action that takes place at a specific place and time. An instance or occurrence of an activity type. An actual event or action may has an activity type, but details of the type information is not described here, but in the concept of Activity Type.
Object Attributes
Example
Inclusion
Exclusion
Rules
Modeller
Date
Status
Comment