Associating system requests with sms user responses

摘要: A messaging system can initiate a communication with one or more users through via cell phone text messages, for example using the short message service protocol. These systems often need way to correlate user responses requests queries. This problem present challenges because email mailbox metaphor used by interfaces generally allows reply any previously sent but no context is automatically supplied. that may send multiple messages needs mechanism which user-sent response of potentially many system-sent Context correlation resolve ambiguities be based on dialog-based solution, token-based solution and keyword-based solution.