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Re: Brightness mode follow-up meeting

From: Kostiainen, Anssi <anssi.kostiainen@intel.com>
Date: Wed, 17 Nov 2021 08:19:23 +0000
To: Bruce Nordman <bnordman@lbl.gov>
CC: "Kubo Da Costa, Raphael" <raphael.kubo.da.costa@intel.com>, "larsgk@gmail.com" <larsgk@gmail.com>, "marcosc@w3.org" <marcosc@w3.org>, "tomac@google.com" <tomac@google.com>, "reillyg@google.com" <reillyg@google.com>, "will.morgan@iproov.com" <will.morgan@iproov.com>, "xfq@w3.org" <xfq@w3.org>, "fbeaufort@google.com" <fbeaufort@google.com>, "public-device-apis@w3.org" <public-device-apis@w3.org>
Message-ID: <53A343BD-2BDD-495B-888F-F493AFFBAE35@intel.com>
Hi Bruce,

On 16. Nov 2021, at 20.47, Bruce Nordman <bnordman@lbl.gov<mailto:bnordman@lbl.gov>> wrote:

  I have been just an observer the past few years as I don't directly work with these APIs. I do work on user interface standards -- on power control, and for lighting - and hopefully in future for displays (which will build on the other two).

  20 years ago I wrote IEEE 1621, which was to codify our transition from a 2 power state world - on and off - to a 3 power state world, with sleep as the intermediate state. This significantly to try to drive out of use the word 'standby' which is inherently ambiguous.  The term 'wake lock' is clearly consistent with the sleep metaphor.
  More recently (the past decade) I have been working on a standard for lighting control (there currently are none directly on that). After much consideration, I concluded that 'brightness' was the right underlying metaphor for changing light levels, not 'dimming' as is common in the lighting industry. You are again on the right track already.

We're glad to have your expertise in this group. Thanks for confirming we're on the right track.

I just distributed the meeting minutes of this brightness mode follow-up meeting. We made a resolution to create an explainer document to make it easier for a broader set of stakeholders to provide feedback.

We will share a link to that document once we have a first draft out and welcome your feedback.

  If this is relevant to any of your work, feel free to check out my web page (below) and/or contact me.
  I am not aware that the W3C specifies information about UI elements, but if it does, please point me in the right direction.

I think one place to look at might be the Open UI Community Group:



Bruce Nordman
Lawrence Berkeley National Laboratory
510-486-7089; m: 510-501-7943


-Anssi (DAS WG co-chair)

Received on Wednesday, 17 November 2021 08:19:41 UTC

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