Walmart.com was planning to launch its brand in Brazil and needed a new concept to achieve its objectives. The first of them was to get a cool modern image and at the same time show people that the company sells products of all categories online, working differently than Walmart (Walmart with out "dot").

So, the DOT (PONTO, in portuguese), which makes Walmart.com different from "physical" Walmart, was chosen as the main element of the campaign.
The "dot" is inside the concept "Everything in one dot" ("Tudo em um só ponto", in portuguese) and reflects all the campaign's visual language.