Abstract: A method in an aggregator server of synchronizing data records responsive to variable update notifications includes: receiving, from a provider system, an update notification corresponding to a master data object at the provider system; retrieving a record containing a local data object corresponding to the master data object; determining whether the update notification contains update definitions identifying changes to the master data object; selecting between a delta synchronization mode, when the determination is affirmative, and an object comparison synchronization mode, when the determination is negative; for the delta synchronization mode, updating the local data object according to the update definitions; for the object comparison synchronization mode, obtaining a copy of the master data object, and updating the local data object based on a comparison between the local data object and the copy of the master data object; and storing the updated local data object in the record at the aggregator.

Abstract: Systems, methods, and computer program products for aggregating data from related database records. A booking folder database stores a plurality of booking folder records. Each booking folder record links reservation records and other data relating to a particular trip or group of trips by storing identifiers identifying the reservation records to be linked. To view or modify a trip, a client application may search the database for a booking folder record matching a search term. Based on the identifiers in the matching booking folder record, the client application may retrieve the linked reservation records, and aggregate the reservation records into a single booking folder view of the entire trip. To modify the itinerary of the trip, the client application may add or remove links from the booking folder record, or modify the linked reservation records.

Abstract: Systems, methods, and computer program products for forming a travel group. A first travel record containing a travel reservation for a first social network user is stored in a database. The travel reservation is published as a trip publication on a social networking system. An inquiry related to the trip publication is received via the social networking system from a client device associated with a second social network user. In response to receiving the inquiry, the one or more processors generate one or more offers for a second trip based on data in the first travel record. A second travel record containing the one or more offers is stored in the database. A link between the first travel record and the second travel record is assigned in a booking folder stored in the database. The one or more offers are communicated to the client device of the second social network user.