diff --git a/Test-reports.md b/Test-reports.md
index ac3b64a..f82794c 100644
--- a/Test-reports.md
+++ b/Test-reports.md
@@ -21,5 +21,6 @@
 |---|---|**Extension test:** The user follows the same steps as in the success scenario, but enters a number that's either less than 4 or more than 12 digits long.|The user is notified of the incorrect length and is unable to save the PIN.|Expected result|No|Fixing not needed|
 
 ### Non-functional requirements measurements
+For testing purposes, the demo backend was set up according to the instructions in the README.md of the respective project using ngrok. The authentication application was launched through Android Studio. Measurements were taken manually using a stopwatch.
 1. USN9 - the application opens in under a second
 1. USN10 - the website receives the token in well under 15 seconds
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