ABSTRACT
We have become accustomed to interacting with computers. ey give us daily weather forecasts and help us keep in touch with friends and family globally. ey deliver references, digital articles, and newspapers and allow virtual teams to work together from opposite sides of the globe. Computers even provide embodied agents to guide us through di¸cult procedures or teach us to speak Japanese. ey allow us to shop for products in distant countries and have ready access to cash on city streets almost everywhere. Humancomputer interactions are a part of our lives, mediating communication, providing instruction and support, and serving as gateways for business transactions.
