Re: [Usability] FW: UI Responsiveness

["Martin Harris" <Martin_Harris pmc-sierra com>]

Thanks for the reply. My experience is in embedded systems where you
have more control of event timing in general. For general-purpose
computing, there are no time constraints placed on applications for how
long they will take to respond to user interactions. A button click can
take 10 ms or 10 min. The user does not control that and the GUI system
and kernel do not enforce any timing constraints.

Perhaps I don't know your environment well enough to even pose the
question. But I am wondering if any thought has been given to requiring
apps and environments to guarantee response times.

An example constraint would be application start up time. When a user
starts an application, the application must present the main window
within 3 seconds.

Thanks,
Martin
 
-----Original Message-----
From: Calum Benson Sun COM [mailto:Calum Benson Sun COM] 
Sent: Thursday, November 29, 2007 3:20 PM
To: Martin Harris
Cc: usability gnome org
Subject: Re: [Usability] FW: UI Responsiveness


On 29 Nov 2007, at 22:58, Martin Harris wrote:

> Are there any time constraints on HIG in terms of responsiveness?
>
Yes, see http://library.gnome.org/devel/hig-book/stable/feedback- 
responsiveness.html.en for the guidelines here.
> Also, has there been any talk about making UIs accountable for real- 
> time responsiveness (low-latency interactivity)? Is there anything  
> in the overall system that could require a UI to respond in 10  
> seconds, 1 second, etc?
>
Not quite sure what you're getting at here-- could you give an example?

Cheeri,
Calum.

-- 
CALUM BENSON, Usability Engineer       Sun Microsystems Ireland
mailto:calum benson sun com            GNOME Desktop Team
http://blogs.sun.com/calum             +353 1 819 9771

Any opinions are personal and not necessarily those of Sun Microsystems