A cursory google doesn't show an easy way of measuring "user hours lost". A few articles relating to previous outages (including from the BBC and the Independent) refer people to the website Downdetector which relies on the number of self-reports as an indicator of an outage.
If you know of a way of measuring User-hours lost, maybe the resolution criteria should be ">10mil user-hours of inability to use twitter according to [X website/method of calculating]"
A cursory google doesn't show an easy way of measuring "user hours lost". A few articles relating to previous outages (including from the BBC and the Independent) refer people to the website Downdetector which relies on the number of self-reports as an indicator of an outage.
If you know of a way of measuring User-hours lost, maybe the resolution criteria should be ">10mil user-hours of inability to use twitter according to [X website/method of calculating]"
Links:
Twitter: Major outage affects users around the world - BBC News
Twitter down: Social media users report website outages | The Independent
Twitter down or not working? Current status and problems for the UK | Downdetector