Abstract: Methods, apparatus, and products are disclosed for reliable messaging using a message stream in a high speed, low latency data communications environment that include brokering, by a stream administration server, establishment of an active message stream to a subscribing client device from an active feed adapter; receiving, in a transport engine of the subscribing client device from the active feed adapter on an active message stream, active application messages encapsulated in active transport packets; receiving, by the transport engine from the active feed adapter, an active transport packet containing an active mapping; identifying, by the transport engine in dependence upon active sequence numbers, a missing active transport packet; identifying, by the transport engine, missing active application messages of the missing active transport packet in dependence upon the active mapping; and requesting, by the transport engine, transmission of the missing active application messages from the active feed adapter

Abstract: Selecting application messages from redundant feed adapters for application-level data processing in a high speed, low latency data communications environment, including brokering establishment of an active message stream to a subscribing client device from an active feed adapter; brokering establishment of a backup message stream to the subscribing client device from a backup feed adapter; receiving active transport packets in a transport engine of the subscribing client device from the active feed adapter; receiving and buffering backup transport packets; identifying a missing active transport packet; determining whether a corresponding backup transport packet for the missing active transport packet has been received from the backup transport adapter; and replacing the missing active transport packet with the corresponding backup transport packet for further data processing if the corresponding backup transport packet for the missing active transport packet has been received.

Abstract: A publish/subscribe system includes a publisher and multiple subscribers. The published includes a packet generator to generate a packet with at least one of: a fixed length flow label labeling a message or a message bundle and a fixed length node label labeling at least one message bundle and indicating at least one of the nodes of a topic tree to which the flow label belongs. Each received includes a user selection data holder and a message selector. The data holder stores a selection of topics of interest to a user from the topic tree. The message selector receives a packet having a header and data, determines which flow and/or node labels are incorporated in the header and accepts the data if the user selection data holder indicates that the labels within the header are of interest to the user.

Abstract: A method and system for displaying a resource schedule containing a plurality of objects in an N-level multiple hierarchy all of which objects are subject to a common dependency, comprising the steps of allocating different non-overlapping areas of a display device for each level of the resource schedules, and graphically displaying each level of the resource schedule in the respective area of the display device in synchronized relationship on a common axis representative of the common dependency. Editing tools are provided for allowing objects of the same level to be interchanged, objects of a given level i (where i<N) to be inserted into an object of a higher level (i+1), and objects of a given level i (where i>1) to be disassembled into an object of a lower level (i−1). The method and system are particularly suited for constructing and editing crew pairings for airlines and allow simple and efficient on-line, interactive manipulation of resources.