When the user makes an application data entry, such as a calendar entry for a meeting with a customer, the mashup uses rules and data patterns that have been defined by the user to query {HEAD ~ other relevant information sources} to collect related information about the customer or {TAIL ~ the meeting}, and to cache the collected information on the device for the user 
When the user makes an application data entry , such as a calendar entry for a meeting with a customer , the mashup uses rules and data patterns that have been defined by the user to query { HEAD ~ other relevant information sources } to collect related information about the customer or { TAIL ~ the meeting } , and to cache the collected information on the device for the user
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