Key services of Presence

Michael Sampson of Shared Spaces explains what presence has to offer (PDF download page):

Presence offers the following key services:

  • Presence Indicator and Control Panel. The ability for a user to set whether they are “present” or “not present”, and to have this displayed to everyone else on the IM service that wants to communicate with them.
  • Availability Indicator and Control Panel. The ability for a user to set a finer level of granularity on their presence — such as “available”, “on the phone”, or “ready to talk” — or their non-presence, eg, “Out to lunch”, “Back at 2pm”, or “At the doctor”
  • List of Possible Communication Mechanisms. A given person can be contacted through a variety of communication channels, such as via email, via IM, via a phone call, or via text message. If the user knows about all of those addresses for a given person, they should be shown. See Figure 2.
  • Privacy Rules. Privacy rules allow for the user to set who is able to view their presence information. Settings range from “Allow everyone” to “Deny everyone”, with a number of levels in between. See Figure 3.

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