Impedance Matching: When You Need to Know What

摘要

Feedthrough and awareness of user activities are major issues in CSCW. A key difference between awareness and goal-directed feedthrough lies in the required pace and quality of feedthrough. Getting the right pace of feedthrough is important for usability and to avoid overloading networks. Notification mechanisms should therefore allow dynamic tuning of the pace and volume of update events. This matching of the required and supplied pace of update events we call impedance matching. A separable notification server is often ideally placed to perform impedance matching between end-user clients. These design principles have been applied in an experimental notification server Getting-to-Know.