Here is an example: early in the morning of the second day of the Sprint (during the stand up) I go to the board and see that the story I worked the previous day (first day of Sprint) contains a big 1 IDEAL DAY written on it (estimate). Right now (early in the second day of Sprint) the story is not completed and I guesstimate it will take half a REAL DAY to complete it. Question: so to track progress and update the burndown right now, shouldn't I update that 1 IDEAL DAY on the card with something else (recap.: original estimate in 1 ideal day, remaining work in 1/2 real day)? What would be that something else in this particular example?
Daily Scrum Meeting (Burndown chart)
scrum;estimation;user story;burndown
When I am talking personal finances with my wife as we go over the checking account I don't start respond to her questions with numbers in Ocatal or Hexadecimal format.  She started spouting figures in Decimal so I communicate Decimal back to her.If you start your Scrum in IDEAL days then all discussions should revolve around IDEAL days.  Don't even talk REAL days, because nobody will ever really know how to relate to that in comparison to IDEAL days.You THINK it will take you 1/2 REAL days to finish the story, but then about 10am your breakfast doesn't agree with you and you can't leave the bathroom for 6 hours.  Or some important client meeting comes up that you need to attend.  This is why you chose IDEAL days in the first place.