I can mostly scan the South Australian ones on the move and as the article says they appear to be simpler. The main problem with fast scanning is selecting one

I can mostly scan the South Australian ones on the move and as the article says they appear to be simpler. The main problem with fast scanning is selecting one at the right height. Often the first I encounter is placed at waist level for wheelchair access which is a very good thing but often worth walking past that and using one at a better height for me as the keystoning of the image makes scanning less reliable. The checkin data in my state is guaranteed to be kept for 28 days and treated as health data and not available for other purposes. But it was recently announced they discovered they had been keeping backups for longer than 28 days by mistake. That is probably quite relevant to a lot of businesses I think. Backups tend to be handled separately. I am sure I have worked on many systems where client data has been deleted in the app but persisted in backups long after they should have. Might be some lessons in that.