CrossOver – WorkSmart Deep Work Score Formula Deep Work : Ability to focus without distraction on a cognitively demanding task. Attention Residue Time Block Flow IB = Start of block i.e. value is always 1 or the 1 st minute. EB = End Block say for 4 hour time block 240 th minute. Assuming 1 Hour time block it is the 60 th minute. KMPA = Keyboard strokes + mouse events on a productive app in a minute KMPA_E = Keyboard strokes + mouse events on all apps in a minute or a constant or a presumed number. DIF(Delta Intensity of Focus) = (KMPA/KMPA_E ) ratio by every minute DIF Valid = All DIF that satisfy the required conditions of a valid Delta Intensity of Focus. No Social Networking Notification or Email notification in that minute. Idle Time for continuous 10 minutes will invalidate All DIF in those 10 minutes plus next X number of minutes are invalid or are 0. If this minute falls in Time Block more than 4 hours then all DIF falling in those exceeding minutes are invalid or are 0. If sum of all the time blocks for the day exceed a presumed number of hours say 8 or 10 then all DIF falling in those exceeding minutes are invalid or are 0. FOF = Factor of Focused Flow (i.e. FOF) This factor of focused flow can have 4 values depending on in what period is the activity FOF1 =0 on 0 th minute up to 10 th minute. And this period from 0 th minute to 10 th minute Period is called P1 FOF2 =5% on 11 th minute up to 180 th minute. And this period from 11 th minute to 180 th minute Period is called Period P2