1. Applications of presence Henk Eertink (mailto:H.Eertink@telin.nl ) http://www.telin.nl/

2. Agenda Presence CSCW Mobility

3. Telematica Instituut Dutch research centre networked applications (operational) service management middleware technology innovation usability annual turnover M€ 15; 130 FTE research capacity sponsored a.o. by IBM, Lucent, ING-bank, KPN, SURFnet, Ericsson

4. Presence; our view on it... Information about in which environment you (virtually and/or really) are what you are doing who you are Virtual presence ‘you are there’ : presence of the user somewhere else ‘it is here’: presence of remote objects/users near the user ‘we are together’: two or more communicators are transported together to a shared place Persistent presence (3rd party) information about your current presence

5. presence & awareness Presence The extent to which information about a person and his or her current location, activities, etc, is available to others Awareness the extent to which people observe/are aware of information about another person's current location activities, etc.

6. Applications in CSCW Conferencing applications H.323-based SIP IP-telephony Message-based applications e-mail calendaring/scheduling message-based application environments, like Lotus Notes, MS Exchange CSCW = Computer Supported Cooperative Work

7. CSCW-reference architecture CE3CE2 M2 M4 M3 M5 CM CM = conference manager CE1 CE = conference enabler M1 M = medium

8. CSCW - architecture HTTP/WebDAV + ‘awareness’ directory (LDAP/ILS) presence protocol (ICQ / MSN Messenger) audio video file sharing application sharing... shared browser conference management (1) H.323/T.120; (2) SIP/SAP/SDP

9. Wrap-up: Presence in CSCW ‘we are together’ notions: joint usage of common resources (web-services, files, …) as a source for on-line communication integration of existing proprietary (or future standards-based) instant messaging and presence solutions in CSCW architecture this requires product-specific or server-specific coding!

10. Challenges in mobility Adaptive services rapidly changing network conditions different types of terminal capabilities capacity and programmability of terminals Location-aware services spatially situated content spaces: make availability of content dependent on the current position of the user virtual representation & presence: manage the relation between users, and their position

11. The intelligent mobile world users Devices Systems & applications Physical environment I am Nikita and I like holidays I am a pda and have color capabilities I am the app. Server of x.com and offer service A and B I am a combination of information defining the environment around a user 3G network I can deliver 500 Kbit connection

12. Customised Mobile Services  Person & location information (directory/cscw): who is where?  Mobile Advertisements (business): push-adds using spatially situated content spaces.  Mobile Shopping (business/cscw): somebody is shopping for you.  Mobile Magic (gaming): collecting video clips/cards for strategic role playing (pokemon) with other “nearby” players.  Mobile Guide (business/learning): personal electronic guide for tours in city/museum etceteras.  Mobile Traffic Directions (transportation): receiving personal traffic directions & info.

13. Presence and mobility ‘brave new world’ and ‘big brother’ are awfully close presence info definition static information (vcard-style) user profiles ‘emotional status’ (reachable, busy, offline, … ) dynamic information per terminal: capabilities + status + current location + current activity Presence client-server & server-server protocols will base ourselves on current standardization efforts in IMPP (cf other presentation)