Use Cases for Connectionless Push support in Webapps recharter

I had an action item to provide some use cases for the Webapps
recharter process, related to the "Push based on extending server-sent
events" topic at the last F2F (draft API proposal that was presented:

The intent of the action item was to establish a basis for a Webapps
charter item related to extending eventsource (or coming up with a new
API) for the ability to deliver arbitrary notifications/data to
webapps via connectionless bearers, as informationally described in
Server-Sent Events (

Here are three use cases:

1)	One of Bobís most-used apps is a social networking webapp which
enables him to remain near-realtime connected to his friends and
colleagues. During his busy social hours, when heís out clubbing, his
phone stays pretty much connected full time, with a constant stream of
friend updates. He likes to remain just as connected though during
less-busy times, for example during the workday as friends post their
lunch plans or other updates randomly. While he wants his favorite app
to remain ready to alert him, he doesnít want the app to drain his
battery just to remain connected during low-update periods.

2)	Alice is a collector, and is continually watching or bidding in
various online auctions. When auctions are about to close, she knows
the activity can be fast and furious and is usually watching her
auction webapp closely. But in the long slow hours between auction
closings, she still likes for her webapp to alert her about bids and
other auction updates as they happen, without delay. She needs for her
auction webapp to enable her to continually watch multiple auctions
without fear that its data usage during the slow periods will
adversely impact her profits.

3)	Bob uses a web based real-time communications service and he wants
to be available to his friends and family even when his application is
not running. Bob travels frequently and it is critical for him to
optimize data usage and preserve battery. Bobís friends can call him
up to chat using video/audio or just text and he wants to make sure
they can reach him irrespective of what device and what network he is
connected at any given time.


Bryan Sullivan

Received on Wednesday, 4 January 2012 05:07:50 UTC