| 摘要 |
Methods and systems are described for monitoring transaction status with a presence tuple. A transaction having a multi-stage life-cycle and having a transaction participant is detected. A presentity is provided for tracking a status associated with a stage of the life-cycle and for publishing the status to a presence tuple associated with the presentity in response to the detection of a transition of the life-cycle to the stage. A subscription to the presence tuple is established for the transaction participant based on information determined from the transaction. At a presence server, a message is received including presence status associated with a stage of a transaction and transaction participant information. The presence information is processed for creating a presence tuple for tracking the transaction. A subscription to the presence tuple is established for the transaction participant based on the transaction participant information received in association with the message.
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