Maximum permissible delay between user action and feedback from Television

23 Sep 2013 - 10:08am
43 weeks ago
2 replies
2118 reads
yendev
2010

Hi,

I am working on television EPGs. I was wondering about the maximum permissible delay between a user action and the feedback from Television.

Eg: User presses ChannelUP button on the remote control. TV responds to the action by changing channel. What should be the maximum allowed delay between this for a good user experience?

Jakob Nielsen talks about 3 response times - http://www.nngroup.com/articles/response-times-3-important-limits/

I am not sure whether it is applicable for TV watching scenario too.

lease share your knowledge regarding this issue.

Thanks - Nikhil

Comments

24 Sep 2013 - 3:45am
Ali Rahimi
2013

Hi Nikhil,

while designing a new kind of remote for smart environments incl. TVs, Audio Systems, a dynamic LED Light installation and more, we had to consider the response time of the systems and the remote itself. In our tests/experiments (over 2000 participants) after the deployment of all the systems in a "Smart Home" context we mainly focused on gestures but basically made the same observations as stated by Nielson and the following reports regarding the response times:ยด
http://theixdlibrary.com/pdf/Miller1968.pdf
http://www.vm.ibm.com/devpages/jelliott/evrrt.html

Though the last link from IBM is somewhat tied to productivity it shows how these tiny time spans add up (in different places) and thus negatively influence UX as a whole.

tl;dr
Yes sub-second (and even less than 0.6s) response is applicable for a TV/Media scenario.

Hope that helps.

Best Regards
Ali. 

24 Sep 2013 - 4:06am
yendev
2010

Hi Ali,

Thanks a lot for your reply. It was really helpful. Smile

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