Smooth transitions between ISDs should not be preferred

[nigelmegitt]

See also w3c/ttml2#485

The note beneath the [associate region] algorithm states:

Where an implementation is able to detect significant similarity between two adjacent synchronic document instances, DOCinterN DOCinterN−1, then it is preferred that the implementation make the transition between presenting the two instances as smooth as possible ...

The use of the term "preferred" is territory-specific and not culturally accepted globally, so it should either be removed or scoped to the places where it is true. For example in the US smooth scrolling is preferred, whereas in the UK jump scrolling is preferred, and those preferences are strong active preferences.

I propose to change the wording to: "..., then the implementation may apply processing to make the transition between presenting the two instances as smooth as possible..." to remove the preference.

I suspect @mikedo could be particularly interested in this, based on my recollection of previous conversations.

[css-meeting-bot]

The Working Group just discussed Smooth transitions between ISDs should not be preferred ttml1#304, and agreed to the following resolutions:

• RESOLUTION: Merge the pull request as is

The full IRC log of that discussion

<nigel> Topic: Smooth transitions between ISDs should not be preferred ttml1#304
<nigel> github: https://github.com//issues/304
<nigel> Glenn: I'm not going to object to merging the pull request already open for this.
<nigel> .. [adjusts pull request review]
<nigel> RESOLUTION: Merge the pull request as is