The collection of patient reported data can be accomplished in a number of ways. The standard system in asthma trials is daily diaries transcribed on paper forms. While useful in many studies, this system lacks the ability to remind subject of reporting time, to time stamp when the report is done and note at the time of report completion to the subject, areas that are incomplete, and to remind patients when to take their study medication. Because of these inadequacies, newer electronic data collection systems are being developed. One of these, the VOCEL Mobile Diary system, will be compared with the standard paper reporting method for abilities to document efficacy, safety, compliance and convenience.