There are more than 35 million Americans over the age of 65. Many of them are facing, or will face, the problem of continuing to live independently in their own homes as their physical abilities and memories decline. Researchers at the Georgia Institute of Technology are conducting a project that uses computer-based technologies to help senior citizens live on their own. The Aware Home Research Initiative focuses on how to design a home to allow older adults to be independent longer. How does the adult child of an older person make sure his or her parent is taking medication at the proper intervals? How can a house tell you where you've left something, or whether you've left a pot cooking on the stove? Some of these problems are answered by the Digital Family Portrait, which gives adult children a virtual report on the activity level and condition of their parent. The portrait is a computer screen that senses data from the parent's home, including room-to-room activity, which essentially lets the children keep and "eye" on their parents' movements. The "What Was I Cooking?" interface incorporates cameras under kitchen cabinets that record what ingredients a person has put into a bowl. The prototype also outfits containers with sensors. The information is used to create a cartoon-strip-format display of the person's recent actions on a computer screen embedded in a cabinet door. When a person's activity is interrupted and they forget what ingredients were already added, they can display a reminder. The next step in the research is to have the system recognize a person's location when they speak. If someone speaks in the dark, cameras will be able to move where the person is located. The researchers want the systems to be invisible, and for the users to be comfortable about what others are able to see as they go about their daily lives. For more information on Aware Home, visit: http://www.awarehome.gatech.edu/