Quality of Experience is the term for measuring the satisfaction of a customer’s experiences with something, for instance, a stream. In the case of live video streaming, QoE means how the user perceives the stream and how satisfied he is with it.
What factors are important for the highest possible QoE?
Smooth running – Does the stream run smoothly and flawlessly? Or does the picture judder? Does it become blurred at times, then sharp again? A smoothly running stream is much more comfortable for the user.
Buffering – Buffering issues are something that you, as a provider, definitely don’t want your users to deal with. If the video interrupts continuously and has to reload, this can have many reasons. Maybe the user’s internet connection is too bad. Or perhaps the CDN is not sufficient, you don’t use one at all, or other problems have crept in on the provider’s side. Either way, buffering issues reduce the QoE of your users seriously.
Breakdowns – Yes, it can get worse. If gross errors or inconsistencies occur when the stream is set up, the whole stream can break down. This can happen if the infrastructure of the stream was designed for fewer users than actually watching. But also technical difficulties can cause a total failure of the stream. For the QoE of your user, this is probably a catastrophe.
As you can see, how positive the QoE of your users will be, depends mainly on how flawless and smooth the stream is running if there are buffering issues, breakdowns, or something else.