availability date
2.With extranets, customers no longer have to make a phone call for the most up-to-date product availability or pricing information.
3.Almost any information available at the time of interaction can be seen as context information: identity, spatial information (e.g., location, orientation, speed and acceleration), temporal information (e.g., time of the day, date, and season of the year), environmental information (e.g., temperature, air quality, and light or noise level), social situation (e.g., who are you with, and people that are nearby), resources that are nearby (e.g., accessible devices, and hosts), availability of resources (e.g., battery, display, network, and bandwidth), physiological measurements (e.g., blood pressure, heart rate, respiration rate, muscle activity, and tone of voice), activity (e.g., talking, walking, and running), schedules and agenda settings.
4.Almost any piece of information available at the time of interaction can be seen as context information: identity, spatial information (e.g., location, orientation, speed and acceleration), temporal information (e.g., time of the day, date, and season of the year), environmental information (e.g., temperature, air quality, and light or noise level), social situation (e.g., who are you with, and people that are nearby), resources that are nearby (e.g., accessible devices, and hosts), availability of resources (e.g., battery, display, network, and bandwidth), physiological measurements (e.g., blood pressure, hart rate, respiration rate, muscle activity, and tone of voice), activity (e.g., talking, walking, and running), schedules and agenda settings.

