First, let's think who the Nest customer is. They are usually tech-savy and enjoy leveraging technology to improve their lives (whether it means reducing cost or improving experience). Some of Nest's latest products such as the smoke detector and DoorBell have also been popular among customers that care about safety and security of their homes. When I think about my house and one of the tasks that I repeat every single day, it's the door locking and unlocking. I find it to be mechanical, repetitive and actually not secure. The problem with today's door locks is that one can open a lock without breaking the door and by just trying many different keys. And it's still not verifying the ownership of the key (i.e. did the key owner use the key to open the door?). This is a big problem and results in customers buying a separate system (e.g. security system) to address the authentication problem. And the security system usually works manually. The home owner has to enter a code each time. Each time they leave, they have to activate it, and each time they're back they have to deactivate it. It's a lot of work. I'm going to focus on building a product that solves this problem with a digital door lock that not only unlocks the door, it also verifies the ownership of the person requesting to unlock the door. Let's call this device Digital Lock. The Digital Lock can start getting unlocked as the home owner gets close to the door (it can detect based on an RFID key or NFC tag on the smartphone). This can help with unlocking but unlocking will only happen after a biometric authentication. There are various ways to do biometric authentication by leveraging - voice authentication - facial recognition The product can be configurable in a way that allows the owner to decide the level of security they've like to have. One might chose only voice authentication. One might chose voice and facial. This product will improve the home owners' lives for a variety of reasons: - they never have to do a mechanical task of locking and unlocking a door lock - they no longer have to worry about losing their keys - no one else can fake being the owner of the home and get in by unlocking the door - the door lock / unlock data can also help Nest and other Nest products work better You can see more product management questions and answers at productmanagementexercises.com