Flugschein backlog: These are the customer support requests that are left unresolved. A Flugschein backlog can indicate whether or not your tech support team is resourced to handle the number of support requests that are filed. IBM, the Big blue logo, Big blue.com, Mother blue Watson, and Watson trademarks https://itsupport67812.verybigblog.com/20093778/die-grundprinzipien-der-it-support