Common Terms-WeTest

Exception
An exception is a crash, lag, ANR, or error that happens when an app is running.
Crash
A crash is when an app stops functioning properly and exits during use.
Jank
A Jank is a slow response from an app during use. A lag is 5-second long by default. The time can be customized.
ANR
An ANR is an “Application Not Responding” prompt when the app is in use. It’s on Android only.
Error
An error is an actively reported exception, error or script (C#, Lua, JS, etc.) error.
Count
Each exception that has occurred and been reported increases the exception count by one.
Affected user
Each device where an exception occurs increases the affected users count by one. If multiple exceptions occur on a same device within a specified period of time, they only increase the affected users count by one.
User Exception Rates
User crash rate, user lag rate, user ANR rate, user error rate, etc. They are the ratios of affected users to users online.
Exception Count Rates
Crash count rate, lag count rate, ANR count rate, error count rate, etc. They are the ratios of occurrence count to internet connection count.
Connection Count
Activation count + interday connection count
Launch Count
Each of the following scenario counts as one launch. 1. The app is restarted after fully exiting it. 2. The app is brought to the foreground after being in the background for 30 sec. If it is brought to the foreground in 30 sec, it doesn’t count as a launch.
Online Users
Devices are counted. Each device with internet connection increases the online users count by one. If a same device connects to the internet repeatedly within a specified period of time, it only increases the online users count by one.