Privacy Concerns
Presence is highly sensitive information and in non-trivial systems a presentity may define limits to which its presence information may be revealed to different watchers. For example, a worker may only want colleagues to see detailed presence information during office hours. Basic versions of this idea are already common in instant messaging clients as a "Blocking" facility, where users can appear as unavailable to selected watchers.
Read more about this topic: Presence Information
Famous quotes containing the words privacy and/or concerns:
“Any moral philosophy is exceedingly rare. This of Menu addresses our privacy more than most. It is a more private and familiar, and at the same time, a more public and universal word, than is spoken in parlor or pulpit nowadays.”
—Henry David Thoreau (1817–1862)
“Life is not a matter of place, things or comfort; rather, it concerns the basic human rights of family, country, justice and human dignity.”
—Imelda Marcos (b. 1929)