A deadline can be considered as part of a Process Protocol. It specifies a duration between Process Steps that cannot be exceeded.

The purpose here is to check 

• If the duration between two Process Steps is not taking longer than a specified duration.

• If the execution of a specific Step has been performed in a specific timeframe. We may have to specify in this case when the Process should start and when it should finish its work (Some Process Mining solution would allow to specific time or just a duration):