MPOP and presence by observation
MPOP and presence by observation
Presence becomes interesting for communication systems when it spans a number of different communication channels. The idea that multiple communication devices can combine state, to provide an aggregated view of a user's presence has been termed Multiple Points of Presence (MPOP). MPOP becomes even more powerful when it is automatically inferred from passive observation of a user's actions. This idea is already familiar to instant messaging users who have their status set to "Away" (or equivalent) if their computer keyboard is inactive for some time. Extension to other devices could include whether the user's cell phone is on, whether they are logged into their computer or perhaps checking their electronic calendar to see if they are in a meeting or on vacation. For example, if a user's calendar was marked as out of office and their cell phone was on, they might be considered in a "Roaming" state.
MPOP status can then be used to automatically direct incoming messages across all contributing devices. For example "Out of office" might translate to a system directing all messages and calls to the user's cell phone. The status "Do not disturb" might automatically save all messages for later and send all phone calls to voicemail.
XMPP, discussed below, allows for MPOP by assigning each client a "resource" (a specific identifier) and a priority number for each resource. A message directly to the user's ID would go to the resource with highest priority, although messaging a specific resource is possible by using the form user@domain/resource.
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Watchers
Users have the potential to publish different presence states depending on who the communicator (or watcher) is. A worker may only want colleagues to see detailed presence information during office hours, for instance. Some users may want to only publish information to a select few. 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.
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Commercial products
Presence, particularly MPOP, requires collaboration between a number of electronic devices (for example IM client, home phone, cell phone and electronic calendar) and the presence services each of them are connected with. To date, the most common and wide scale implementation use closed systems, with a SPOP (Single Point of Presence, where a single device publishes state). Some vendors have upgraded their services to automatically logout connected clients when a new login request reaches the server from a newly connecting different device. For presence to universally work with MPOP support, multiple devices must be able to not only intercommunicate among each other, the status information must also be appropriately handled by all interoperable connected other presence services and the MPOP scheme for their clients.
2.5G and even more so 3G cell phone networks can support management and access of presence information services for mobile users cell phone handsets.
In the workplace, private messaging servers offer the possibility of MPOP within a company or work team.
Presence becomes interesting for communication systems when it spans a number of different communication channels. The idea that multiple communication devices can combine state, to provide an aggregated view of a user's presence has been termed Multiple Points of Presence (MPOP). MPOP becomes even more powerful when it is automatically inferred from passive observation of a user's actions. This idea is already familiar to instant messaging users who have their status set to "Away" (or equivalent) if their computer keyboard is inactive for some time. Extension to other devices could include whether the user's cell phone is on, whether they are logged into their computer or perhaps checking their electronic calendar to see if they are in a meeting or on vacation. For example, if a user's calendar was marked as out of office and their cell phone was on, they might be considered in a "Roaming" state.
MPOP status can then be used to automatically direct incoming messages across all contributing devices. For example "Out of office" might translate to a system directing all messages and calls to the user's cell phone. The status "Do not disturb" might automatically save all messages for later and send all phone calls to voicemail.
XMPP, discussed below, allows for MPOP by assigning each client a "resource" (a specific identifier) and a priority number for each resource. A message directly to the user's ID would go to the resource with highest priority, although messaging a specific resource is possible by using the form user@domain/resource.
[edit]
Watchers
Users have the potential to publish different presence states depending on who the communicator (or watcher) is. A worker may only want colleagues to see detailed presence information during office hours, for instance. Some users may want to only publish information to a select few. 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.
[edit]
Commercial products
Presence, particularly MPOP, requires collaboration between a number of electronic devices (for example IM client, home phone, cell phone and electronic calendar) and the presence services each of them are connected with. To date, the most common and wide scale implementation use closed systems, with a SPOP (Single Point of Presence, where a single device publishes state). Some vendors have upgraded their services to automatically logout connected clients when a new login request reaches the server from a newly connecting different device. For presence to universally work with MPOP support, multiple devices must be able to not only intercommunicate among each other, the status information must also be appropriately handled by all interoperable connected other presence services and the MPOP scheme for their clients.
2.5G and even more so 3G cell phone networks can support management and access of presence information services for mobile users cell phone handsets.
In the workplace, private messaging servers offer the possibility of MPOP within a company or work team.
posted by Liliana at
12:42 pm
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