A use case: a person has symptoms and needs to be tested. They have installed the COVID-19 app, which has all their registration information, including, more recently, National Health Index number and ethnicity. They go to the testing station and the app generates a QR code that has their registration information. Exactly like the Air New Zealand check-in, the app generates a QR code, which the person simply presents to the tester, who scans it in with the same handheld scanners that we see at the New Zealand boarding positions. Can we imagine how much quicker the system could respond with what the user chooses to share? With the information in the system, one could reasonably expect more efficient and effective contact tracing. 