HCI starts with the design of every day things. I realize that the design of locks on a door can be an overlooked item in an routine of daily doldrums. After reading the first chapter of Norman’s book, The Design of Everyday Things, I never noticed that to lock my bottom lock I have to turn the key counterclockwise yet the top deadbolt requires a completely opposite action. My first thought after reading the night before was maybe it is a result of different manufacturers creating the locks and therefore it may have been designed in certain standards based on company policy. To my dismay, the locks are not only made by the same company it appears as they are sold together in a set. After I took off the plates that hold all the goodies inside where the locking bolts jut out, the back of the plates both had the same manufacturer and the bottom plate read “bottom – convenience lock” and the top plate read “top – deadbolt.” I believe this to be a poor decision of mapping in design.