使用者应用程序负责维护与用户的对话或会话。
Consumer applications are responsible for maintaining dialogues or sessions with users.
使用者应用程序不能从长时间运行的流程立即获得结果。
A consumer application cannot expect an immediate result from a long-running process.
它允许联机使用者应用程序获得关于事务是否成功的即时反馈。
It allows online consumer applications to obtain immediate feedback as to the success of the transaction.
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