A tracking manager, in communication with a status tracking structure and
one or more client, provides event information regarding a plurality of
objects, received from the status tracking structure, and alert
information to the clients. Immediate rules and periodic rules are
assessed in light of event information, which rules are stored in a rule
storage component such that any of the rules may be modified
independently of a rule execution component within the tracking manager.
When the conditions defining any of the business rules are met, alert
events are generated, stored and provided to the clients. Additionally, a
map control operating in the clients allows selected portions of the
event information to be provided to the clients. A data structure
corresponding to a map schema is provided such that specialized map
images may be readily provided and associated with each other.