- From: Kazuyuki Ashimura <ashimura@w3.org>
- Date: Wed, 21 Aug 2013 23:20:42 +0900
- To: public-web-and-tv@w3.org
available at:
http://www.w3.org/2013/08/21-webtv-minutes.html
also as text below.
Thanks for taking these minutes, Giuseppe and Daniel!
Kazuyuki
---
[1]W3C
[1] http://www.w3.org/
- DRAFT -
Web and TV Interest Group Teleconference
21 Aug 2013
[2]Agenda
[2]
http://lists.w3.org/Archives/Public/public-web-and-tv/2013Aug/0030.html
See also: [3]IRC log
[3] http://www.w3.org/2013/08/21-webtv-irc
Attendees
Present
Kaz, Bin, Daniel, Sung_Hei, Wook, Giuseppe, Igarashi,
Olivier, Cyril, Skip, Mark_Vickers
Regrets
Chair
olivier
Scribe
giuseppe
Contents
* [4]Topics
1. [5]review of action items -
https://www.w3.org/2011/webtv/track/products/7
2. [6]review TF timeline proposal -
http://lists.w3.org/Archives/Public/public-web-and-tv/
2013Aug/0028.html
3. [7]use cases / requirement table -
https://docs.google.com/spreadsheet/ccc?key=0AvACjV6qS
vmxdEctdjYwa2JOalZLOG10elE1LVRZNlE&usp=drive_web
4. [8]AOB
* [9]Summary of Action Items
__________________________________________________________
review of action items -
[10]https://www.w3.org/2011/webtv/track/products/7
[10] https://www.w3.org/2011/webtv/track/products/7
olivier: start with action-122
[11]https://www.w3.org/2011/webtv/track/actions/122
[11] https://www.w3.org/2011/webtv/track/actions/122
<olivier>
[12]http://lists.w3.org/Archives/Public/public-web-and-tv/2013J
ul/0050.html
[12]
http://lists.w3.org/Archives/Public/public-web-and-tv/2013Jul/0050.html
olivier: I've added a req to address it
<kaz> action-122?
<trackbot> action-122 -- Olivier Thereaux to Outline a
requirement for offline content protection requirement based on
UC8 and UC9 -- due 2013-07-31 -- PENDINGREVIEW
<trackbot> [13]http://www.w3.org/2011/webtv/track/actions/122
[13] http://www.w3.org/2011/webtv/track/actions/122
olivier: but is good to know that content protection is
controversial
... so will probably cause objections to some of the community
... anyway the req. is now on our list
<olivier> ACTION-122 CLOSED
<trackbot> Closed ACTION-122.
olivier: so we can close the action
<ddavis> giuseppe: Don't have time to work on this.
<ddavis> ... will try for the next call
<kaz> action-123?
<trackbot> action-123 -- Giuseppe Pascale to Propose change to
UC6/7 to make it more generic -- due 2013-07-31 -- OPEN
<trackbot> [14]http://www.w3.org/2011/webtv/track/actions/123
[14] http://www.w3.org/2011/webtv/track/actions/123
giuseppe: (talking about action-123)
<olivier>
[15]http://lists.w3.org/Archives/Public/public-web-and-tv/2013A
ug/0017.html
[15]
http://lists.w3.org/Archives/Public/public-web-and-tv/2013Aug/0017.html
<kaz> action-124?
<trackbot> action-124 -- Sung Hei Kim to Hei Kim to confirm
whether Terminal Use Case on TV Applications are already
covered in current UC document -- due 2013-07-31 -- OPEN
<trackbot> [16]http://www.w3.org/2011/webtv/track/actions/124
[16] http://www.w3.org/2011/webtv/track/actions/124
olivier: so next action is 124
... i think it was discussed over email, and seems this is
covered
... can we close this? no objection
<olivier> ACTION-124 CLOSED
<trackbot> Closed ACTION-124.
<kaz> action-125?
<trackbot> action-125 -- Giuseppe Pascale to Draft use cases
related to metadata -- due 2013-07-31 -- OPEN
<trackbot> [17]http://www.w3.org/2011/webtv/track/actions/125
[17] http://www.w3.org/2011/webtv/track/actions/125
<ddavis> giuseppe: Still pending.
olivier: action-125
<kaz> action-126?
<trackbot> action-126 -- Olivier Thereaux to Edit media apis
wiki, change intro to the metadata reference list -- due
2013-07-31 -- PENDINGREVIEW
<trackbot> [18]http://www.w3.org/2011/webtv/track/actions/126
[18] http://www.w3.org/2011/webtv/track/actions/126
olivier: moving on to action-126
... about cleaning up the metadata section on the wiki. is
done, can be closed
<olivier> ACTION-126 CLOSED
<trackbot> Closed ACTION-126.
<kaz> action-127?
<trackbot> action-127 -- Sheau Ng to Review use cases and
requirements document, see whether there is any need for more
use cases related to content sync -- due 2013-07-31 -- OPEN
<trackbot> [19]http://www.w3.org/2011/webtv/track/actions/127
[19] http://www.w3.org/2011/webtv/track/actions/127
olivier: moving on with action-127
<kaz> action-128?
<trackbot> action-128 -- Sheau Ng to Draft table
cross-referencing use cases and requirements -- due 2013-07-31
-- OPEN
<trackbot> [20]http://www.w3.org/2011/webtv/track/actions/128
[20] http://www.w3.org/2011/webtv/track/actions/128
olivier: since Sheau is not here let's postpone it
<olivier> ACTION-128 CLOSED
<trackbot> Closed ACTION-128.
<olivier> [21]https://www.w3.org/2011/webtv/track/products/7
[21] https://www.w3.org/2011/webtv/track/products/7
<kaz> action-129?
<trackbot> action-129 -- Bin Hu to Migrate requirements from UC
8 and 9 into requirements document -- due 2013-07-31 -- OPEN
<trackbot> [22]http://www.w3.org/2011/webtv/track/actions/129
[22] http://www.w3.org/2011/webtv/track/actions/129
oivier: action-129, assigned to Bin
<olivier> ACTION-129 CLOSED
<trackbot> Closed ACTION-129.
Bin: is done, so we can close it
<kaz> action-130?
<trackbot> action-130 -- Giuseppe Pascale to Suggest timeline
for Media APIs next step -- due 2013-07-31 -- OPEN
<trackbot> [23]http://www.w3.org/2011/webtv/track/actions/130
[23] http://www.w3.org/2011/webtv/track/actions/130
<olivier> ACTION-130 CLOSED
<trackbot> Closed ACTION-130.
review TF timeline proposal -
[24]http://lists.w3.org/Archives/Public/public-web-and-tv/2013Aug/002
8.html
[24]
http://lists.w3.org/Archives/Public/public-web-and-tv/2013Aug/0028.html
olivier: last action has been done, is on the agenda for
discussion, we can close it
<olivier>
[25]http://lists.w3.org/Archives/Public/public-web-and-tv/2013A
ug/0028.html
[25]
http://lists.w3.org/Archives/Public/public-web-and-tv/2013Aug/0028.html
giuseppe: During the last couple of calls we discussed how to
organise this
... There was a consensus - better to iterate over them to
avoid discussing endlessly
giuseppe: First part of my mail described how each phase would
be structured.
... First is use cases.
... Then get requirements - then do gap analysis
... We can find out whether the specs are covering all the
requirements or not.
... Last phase is to consolidate everything into a note and
share it with the relevant WGs.
... This process has been used before.
... First phase - use cases - has already been going for quite
a while.
... After end of August, we won't consider more use cases.
... Time is limited because we've already one work on the first
two phases.
... The next iteration will probably take more than four weeks.
... By start of October we should finalise this, by end of
October we should finalise gap analysis ready to discuss it at
TPAC.
... In other words, TPAC is the deadline.
<giuseppe> olivier: any comemnt on this?
<giuseppe> ... as giuseppe said, this is just one iteration
giuseppe: any comment? No comments. So we agree on the schedule
<scribe> ACTION: olivier to copy the timeline on the wiki
[recorded in
[26]http://www.w3.org/2013/08/21-webtv-minutes.html#action01]
<trackbot> Created ACTION-133 - Copy the timeline on the wiki
[on Olivier Thereaux - due 2013-08-28].
use cases / requirement table -
[27]https://docs.google.com/spreadsheet/ccc?key=0AvACjV6qSvmxdEctdjYw
a2JOalZLOG10elE1LVRZNlE&usp=drive_web
[27]
https://docs.google.com/spreadsheet/ccc?key=0AvACjV6qSvmxdEctdjYwa2JOalZLOG10elE1LVRZNlE&usp=drive_web
<olivier>
[28]https://docs.google.com/spreadsheet/ccc?key=0AvACjV6qSvmxdE
ctdjYwa2JOalZLOG10elE1LVRZNlE&usp=drive_web
[28]
https://docs.google.com/spreadsheet/ccc?key=0AvACjV6qSvmxdEctdjYwa2JOalZLOG10elE1LVRZNlE&usp=drive_web
olivier: we are going to review the shared google doc
bin: I can introduce it, np
... the table is derived by the list of UCs and Reqs on the
wiki
... it was generated to make it easy to see which UC derive
which req
... the black cross is indicating that the mapping was agreed
... while the red and question mark are the one inserted by
Sheau, for discussion
... let's review the open issues
<olivier> giuseppe: is this more of an app authentication
requirement or device auth?
<olivier> np
ddavis, can you take on scribing?
I'm going to comment a lot :)
<ddavis> OK
thanks
Bin_Hu: Maybe we can split the requirement into three parts
giuseppe: Yes, because they're three different things
olivier: To apply this we need two things - to split this and
to apply it to the use cases.
... Any volunteers to do these two tasks?
Bin_Hu: I can do that.
<olivier> ACTION: bin to split requirement 1.5 into 3, update
the UC/Req table accordingly [recorded in
[29]http://www.w3.org/2013/08/21-webtv-minutes.html#action02]
<trackbot> Created ACTION-134 - Split requirement 1.5 into 3,
update the uc/req table accordingly [on Bin Hu - due
2013-08-28].
Bin_Hu: Moving on to the next point - line 14 req 1.12
... "Device-to-device content transfer"
olivier: I'm confused by JC's comment.
... He said "yes, with all the implied limitations"
... Does he means the transfer may not be allowed if there are
some restrictions in place?
Bin_Hu: I think you're correct based on discussions we had back
in May.
... We talked about content protection including paid content,
parental controls.
giuseppe: I don't see the use case and the requirement match.
... There is no transfer between two devices in this use case.
<olivier> Use Case link:
[30]http://www.w3.org/2011/webtv/wiki/Media_APIs/Use_Cases#8._.
22Use_Case_Eight_.E2.80.93_Download_and_Go.22
[30]
http://www.w3.org/2011/webtv/wiki/Media_APIs/Use_Cases#8._.22Use_Case_Eight_.E2.80.93_Download_and_Go.22
Bin_Hu: In the use case no other device is involved.
... After discussion with JC we added offline requirements
... but the use case itself doesn't have the second device
... Conclusion is to remove the X and ?
olivier: sounds like consensus.
... I'm removing the comment.
Bin_Hu: Next is 1.16
... from use case no. 6
... about whether EPG also needs tuner control.
... JC wonders whether EPG is just another web app.
... Based on my reading of use case no. 6, web apps are apps
that add content, not EPGs.
olivier: JC is right that there is overlap and there is a need
for tuner control, but I don't see it as a problem that there's
overlap between the use cases. They don't have exactly the same
requirements.
giuseppe: I'll try to read these comments more by the next
call.
Bin_Hu: If we need to merge or consolidate them we can do it
later.
olivier: so leaving the X and ? for now.
Bin_Hu: Next is line 22 - req 1.20 - "Content protection"
... Use cases 4, 5, 6 have question marks.
... First is content sharing - seems to be obvious.
<olivier>
[31]http://www.w3.org/2011/webtv/wiki/Media_APIs/Use_Cases#4._.
22Use_Case_Four_.E2.80.93_Content_Sharing.22
[31]
http://www.w3.org/2011/webtv/wiki/Media_APIs/Use_Cases#4._.22Use_Case_Four_.E2.80.93_Content_Sharing.22
olivier: There is a bit in use case 4 about someone launching
content. There would be some content protection but I don't see
it as core to the use case.
... Seems more marginal than key.
Bin_Hu: I agree
... In the use case it mentions a shared video link. That's
where it comes from.
Mark_Vickers: When there's content protection it doesn't mean
it has to be used - it means it has to be allowed for.
olivier: Leaving the X there.
Bin_Hu: Next is content search.
<olivier> Content search UC:
[32]http://www.w3.org/2011/webtv/wiki/Media_APIs/Use_Cases#5._.
22Use_Case_Five_.E2.80.93_Content_Search.22
[32]
http://www.w3.org/2011/webtv/wiki/Media_APIs/Use_Cases#5._.22Use_Case_Five_.E2.80.93_Content_Search.22
Bin_Hu: JC says no.
olivier: In this case I'd agree with JC. It doesn't look like
content protection is needed in this case.
Bin_Hu: An example is a movie trailer.
olivier: Playing devil's advocate, for some people metadata
about content is something you may want to protect.
Cyril: That kind of data is more about authentication than
content protection - i.e. more crypto.
Mark_Vickers: I agree. It might be good to call content
protection "media content protection" which is different to
data protection.
<olivier> +1
Mark_Vickers: This makes it clear it doesn't apply to metadata.
olivier: Should we remove that part or give Sheau a chance to
explain?
Bin_Hu: As a group remove it, but as a courtesy give him a
heads up why we think it's not relevant. He can share his
thoughts with the group if necessary.
olivier: How about adding a comment in that cell explaining the
group's consensus?
Bin_Hu: OK
... Next is use case no. 7
olivier: I de-resolved it.
Bin_Hu: JC is not sure what Sheau means.
olivier: Any opinion in the group about this?
Mark_Vickers: I think +1. There will be cases where the live TV
broadcast is using content protection.
... i.e. media content protection.
... That's part of the pre-requisite task.
... unless somebody was talking about downloads?
olivier: I don't think so.
Mark_Vickers: In that case it definitely applies. E.g. HBO is a
content protected channel and has channel-bound applications.
olivier: So it looks like we have use cases where this does
apply so yes to the X.
... No objections.
... I think that's all the question marks.
... One more thing...
... We have two use cases - 10 & 11 - for which associations
have not been made.
... Either we go through it quickly or we get volunteers to do
it.
... I prefer the latter, then we discuss any points of
contention.
... Any volunteers?
<Mark_Vickers> I believe there is one more X missing for 1.22
Content Playback on UC9 Download and Go
olivier: I'll volunteer myself
<olivier> ACTION: olivier to fill UC/Req table for the columns
of UC 10 and 11 [recorded in
[33]http://www.w3.org/2013/08/21-webtv-minutes.html#action03]
<trackbot> Created ACTION-135 - Fill uc/req table for the
columns of uc 10 and 11 [on Olivier Thereaux - due 2013-08-28].
Mark_Vickers: Download and Go should be Watch and Record
... Although nothing says at a later time someone can playback
the content, it's mandatory and should be added.
olivier: I agree, that seems obvious.
Bin_Hu: Me too - it's implicit.
Mark_Vickers: We should add it to the use case.
<olivier> ACTION: Mark to add "playback" to use case 9
[recorded in
[34]http://www.w3.org/2013/08/21-webtv-minutes.html#action04]
<trackbot> 'Mark' is an ambiguous username. Please try a
different identifier, such as family name or username (e.g.,
mvickers2, mwatson2).
<olivier> ACTION: Mvicker2 to add "playback" to use case 9
[recorded in
[35]http://www.w3.org/2013/08/21-webtv-minutes.html#action05]
<trackbot> Error finding 'Mvicker2'. You can review and
register nicknames at
<[36]http://www.w3.org/2011/webtv/track/users>.
[36] http://www.w3.org/2011/webtv/track/users%3E.
<olivier> ACTION: Mvickers2 to add "playback" to use case 9
[recorded in
[37]http://www.w3.org/2013/08/21-webtv-minutes.html#action06]
<trackbot> Created ACTION-136 - Add "playback" to use case 9
[on Mark Vickers - due 2013-08-28].
olivier: Based on that, if there are no other questions I
suggest we adjourn for today.
... We should stick to one hour.
AOB
olivier: I'd like to make sure everyone's happy with the next
meeting being on the 4th September. Anybody unable to make it?
... One more thing...
... Does anyone want to go through the TPAC registration
requirement?
giuseppe: Kaz shared all the information to the list.
... Follow that and please register.
<kaz> [38]TPAC page
[38] http://www.w3.org/2013/11/TPAC/
giuseppe: We'll have a one-day meeting for this group on
Tuesday to not overlap with the Web and Broadcasting group (on
Monday)
ddavis: Please do it early because you may need a visa and a
letter from Beihang University.
giuseppe: One other AOB is a tooling point.
<kaz> [39]question on invitation letter
[39] https://www.w3.org/2002/09/wbs/35125/TPAC2013/?login#wbsq15
giuseppe: I think Google Docs works quite well so should we
move the use cases over to Google Docs as well?
... For me, it lowers the barrier to commenting, at least for
this group which is not a long-standing group.
ddavis: I'd be happy as long as it doesn't require a
third-party (non-W3C) account.
giuseppe: A third-party account is only required for the person
who creates the document.
olivier: I'm happy with either but we should make sure we keep
a backup copy.
<kaz> +1
olivier: W3C has a strong policy - we don't want things
disappearing.
ddavis: My only concern is that we avoid having too many
documents in too many places.
giuseppe: I agree but it's better than using email attachments.
olivier: We can make sure the wiki points to the new version of
the document.
<kaz> +1
giuseppe: I'll volunteer to update the Google Docs link.
... But is the wiki only editable by Team members?
olivier: No, it should be editable by anybody
Bin_Hu: In my experience I needed a W3C account to edit the
wiki.
olivier: I think you can get a public account to do that.
... Giuseppe, why would that concern you? Our use
cases/requirements do not have strong IPR issues.
giuseppe: In general we're not accepting contributions from
non-members.
... The other solution is just to have one editor.
... In this case, I could copy the document and allow someone
to be the editor and others can comment on it.
olivier: Sounds like a good plan.
... Any other business?
... OK, we are adjourned. Good meeting & talk to you in two
weeks.
<olivier> thanks ddavis, giuseppe for scribing
<kaz> [ adjourned ]
Summary of Action Items
[NEW] ACTION: bin to split requirement 1.5 into 3, update the
UC/Req table accordingly [recorded in
[40]http://www.w3.org/2013/08/21-webtv-minutes.html#action02]
[NEW] ACTION: Mark to add "playback" to use case 9 [recorded in
[41]http://www.w3.org/2013/08/21-webtv-minutes.html#action04]
[NEW] ACTION: Mvicker2 to add "playback" to use case 9
[recorded in
[42]http://www.w3.org/2013/08/21-webtv-minutes.html#action05]
[NEW] ACTION: Mvickers2 to add "playback" to use case 9
[recorded in
[43]http://www.w3.org/2013/08/21-webtv-minutes.html#action06]
[NEW] ACTION: olivier to copy the timeline on the wiki
[recorded in
[44]http://www.w3.org/2013/08/21-webtv-minutes.html#action01]
[NEW] ACTION: olivier to fill UC/Req table for the columns of
UC 10 and 11 [recorded in
[45]http://www.w3.org/2013/08/21-webtv-minutes.html#action03]
[End of minutes]
__________________________________________________________
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Received on Wednesday, 21 August 2013 14:21:21 UTC