Abstract: Messages are targeted to travelers based on travel itineraries. Targeting may also be based on real-time travel status information. The targeted messages communicate their purpose and priority to respective travelers within the context of the travel itineraries. A disclosed method includes accessing a travel itinerary database including a plurality of travel itineraries. Each travel itinerary is associated with a traveler and defines itinerary segments of a corresponding travel schedule. A message is associated with a set of targeting rules used to identify a subset of itineraries in the travel itinerary database. The targeting rules may be used with real-time travel status information to identify the subset of itineraries.

Abstract: Messages are targeted to travelers based on travel itineraries. Targeting may also be based on real-time travel status information. The targeted messages communicate their purpose and priority to respective travelers within the context of the travel itineraries. A disclosed method includes accessing a travel itinerary database including a plurality of travel itineraries. Each travel itinerary is associated with a traveler and defines itinerary segments of a corresponding travel schedule. A message is associated with a set of targeting rules used to identify a subset of itineraries in the travel itinerary database. The targeting rules may be used with real-time travel status information to identify the subset of itineraries.

Abstract: The software system of the present invention is a distributed object oriented software system that it is customizable and flexible enough to implement a wide variety of different “business logics” without the need to rewrite the basic components of the software system because it provides scripting capability in a distributed object-oriented software system. The present invention includes a rules-based scripting language that can be interpreted by a Rules Engine that is part of the base class of component for the software system. In accordance with the present invention each individual component of the software system may have one or more predetermined rule sets defined for it. Each predetermined rule set allows customization of the behavior of the associated component of the software system.

Abstract: A programmable counter or timer is preloaded with a value that serves to discriminate between meaningful transitions and spurious ones, and an output latch is initialized so that the value it contains is equal to the initial value of a comparator output. The binary output of the comparator is then continuously compared with the content of the output latch. If the two values become unequal, indicating a change in the state of the comparator output, the timer or counter is enabled to start timing or counting. If the change in the comparator output lasts long enough to qualify the transition as meaningful, the timer/counter times out clocking the new comparator output condition into the output latch.