and Janet are married and have two kids: Marc and Kevin.
It is just before Christmas and they go together to the shopping
mall. Every member of the family has their own interests and
will be visiting specific shops.
They arrive at the mall and are given a device that is
set up: so that they can locate each other and communicate easily.
Marc and Kevin go to the game shops, Janet goes shopping for food and
John for Christmas presents.
John and Janet are not worried because they can locate their kids through
the ad hoc device.
John wishes to buy a multiplayer game for his kids but has no
idea where: his device has a search option: John types “multiplayer
game” and a list of shops where this item is sold
appears, together with a customer satisfaction ranking.
John selects the shop at the top of the list and a map
is shown, with the location of the shop.
the present for his kids, John is walking in the mall when his device
beeps, signalling that the bookshop on his left has a series
of special offers: John decides to step in to see if there is anything
Janet has just seen a cooking robot that could be perfect for making
cookies for Christmas. But before buying it, she wishes to know what
John thinks. She sends a chat request to John, and they talk about this.
Janet sends information about the item to John, he sees it and its features
and agrees to buy it. Through the chat window, he tells Janet
to go ahead and buy it. It is time to gather the others and
go home to have dinner: Janet sends a message to her husband and the
kids. As the kids do not respond, Janet locates them on the device map
and sends a message to John to meet all three of them at the arcade
corner, where Marc and Kevin are, engrossed in their playing. They return
the device, which will be cleaned, recharged and ready for the next
customers, and go home.