The latest company to join the use of Artificial Intelligence and Robotics in the workplace is Walmart, who has started testing at a few of their locations a mobile robot that scans shelves and notifies employees if a product is out of stock. The robots are developed by Bossa Nova Robotics, based in San Francisco they raised $17.5 million back in November of last year to help it build out its line of inventory-scanning retail robots, right after securing the deal with Walmart to put the automated store clerks in 50 of the big-box chain's stores. The job of the roughly 6-foot-5 robot is simple: scan the shelves and let employees know when a product is out of stock, if an item is misplaced or if it is mislabeled, said Tiffany Wilson, a Walmart spokeswoman. "It scans each aisle in about two minutes, so it can scan dozens of shelves in less than an hour," she said, adding that this job would usually be done by a store employee. "It's scanning and looking for all of those things and, in real time, can tell associates what parts of the store need the most attention."