As part of the safety study we did look at the safety benefits and as part of that we tried to document some things that were immediately available and usable. Certainly, as Kathleen mentioned, in terms of identifying any unclear instructions, any areas where improvements can be done, it could actually be ergonomic-type improvements, or improvements that would help improve resource management. Those were some of the items that were identified during the safety study and identified as lessons learned or best practices.
To perhaps add a little more context in terms of how some of these safety benefits were identified, we included some very specific reviews of what I'll call scenarios of interest. These scenarios of interest include normal operation, non-normal operations, and different scenarios like time of day or length of shift. The intent was to try to examine certain types of human performance that could be identified and captured as part of the on-board recording, so it's things like stress, workload, fatigue actually, inattention, distractions. Much of that was captured and proven as part of the safety study in terms of the benefits that were available through recorders.