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This article discusses the data collection tool developed to investigate how patient flow is affected by the delivery of different types of care within Perioperative Services. To better understand the Perioperative Services processes, this study tracked staff members as they perform their activities. A challenging aspect of documenting the processes observed while tracking the Perioperative Services staff is to record the specific times and order in which the activities took place. The Perioperative Services is a fast-paced, dynamic environment where the staff members often perform multiple tasks that may also be interrupted, and each staff member may perform these tasks in their own sequence. To meet the needs of accurate data gathering, an iPhone/iPod Touch application was developed. It provides several advantages over the traditional paper/pencil method: (1) time stamps are instantaneous and consistent among the data collectors, (2) activities are entered via swipe-and-click capability, (3) multiple active tasks and interruptions can be tracked, and (4) collected data can be output to Microsoft Excel or Access for analysis. The "app" has proven to be useful in capturing data for our study. This technology can be customized and applied to similar settings at other hospitals.