1.  Copyright 2008 Digital Enterprise Research Institute. All rights reserved. Digital Enterprise Research Institute www.deri.ie Towards Consolidated Presence Manfred Hauswirth, Jerome Euzenat, Owen Friel, Keith Griffin, Pat Hession, Brendan Jennings, Tudor Groza, Siegfried Handschuh, Ivana Podnar Zarko, Axel Polleres and Antoine Zimmermann CollaborateCom 2010 12 October 2010

2. Digital Enterprise Research Institute www.deri.ie Setting up the stage

3. Digital Enterprise Research Institute www.deri.ie A Network of Knowledge  Interconnected  Universal  All encompassing  Enable global and local collaboration  The right information for the right people at the right time

4. Digital Enterprise Research Institute www.deri.ie Semantic Reality

5. Digital Enterprise Research Institute www.deri.ie Enterprise environments change! Web 2.0 / Mash-ups Sensors Linked Open Data Mobile Phones Context BPEL BPMN Semantics Scale Common abstractions Heterogeneous data Heterogeneous platforms Time-dependant information Incomplete information Enterprise Environments Corporate Social Network Hyper- Connectivity Clouds

6. Digital Enterprise Research Institute www.deri.ie A representative example Presence Management

7. Digital Enterprise Research Institute www.deri.ie 7 Communication is essential in today’s enterprise workspaces Presence Essential block in delivering communication Enables status identification and availability Optimizes communication time => increase productivity, customer satisfaction, etc Why is presence relevant?

8. Digital Enterprise Research Institute www.deri.ie 8 Chadwick Martin Bailey (2008) “On a daily basis 40% of employees are unable to reach co-workers on the first try resulting in more then 20% of their employers experiencing a missed deadline or project delay on a weekly basis.” Financial relevance

9. Digital Enterprise Research Institute www.deri.ie 9 Current enterprise IM market Installed subscriber base of over 140M Market size in excess of $200M Expected to grow to over 450M users and market size of over €500M by 2012 (The Radicati Group, 2009) Current public/consumer IM market Yahoo, QQ, AIM, GoogleTalk, Skype, etc: 600M users Financial relevance

10. Digital Enterprise Research Institute www.deri.ie 10 Virtual availability Actual availability Tight integration of various sources of virtual and physical presence No single view on presence Actors Policies Access control Trust Why is it a hard problem? ≠ ↑↓

11. Digital Enterprise Research Institute www.deri.ie 11 Many forms and interpretations Complex understanding Complex reasoning Heterogeneity of presence information sources IM, Skype, (IP) phone, calendar, Twitter, … GPS, mobile phone, sensors, … No (limited) heterogeneous frameworks No (limited) heterogeneous standards (SIP, XMPP, …) Technical challenges

12. Digital Enterprise Research Institute www.deri.ie 12 First-class type of service “Internet of Services” applications “Internet of Things” consumption Open and integrated view of presence A general concept – extension of the person-associated view Flexible integration of arbitrary policies Multi-faceted views of presence Privacy and protection of sensitive information Consolidated Presence

13. Digital Enterprise Research Institute www.deri.ie 13 Check availability Ad-hoc – phone: suggest alternative communication media, notification to call back, etc Meeting schedulers – future meeting: prediction of availability of persons Alternatives – finding alternatives for a given task Resource management Resource location, availability, … Other Context and action dependent presence Automatic re-scheduling, geo-notes, … Enterprise use cases

14. Digital Enterprise Research Institute www.deri.ie 14 IETF SIMPLE: XMPP, SIP RFC 3856: Presence “the ability, willingness or desire to communicate across a set of devices” Current Presence views

15. Digital Enterprise Research Institute www.deri.ie 15 Entities PUA: Presence User Agent PA: Presence Agent Subscriptions management + notification Presence model Expose presence informationStanding interest in presence info Facilitates information flow

16. Digital Enterprise Research Institute www.deri.ie 16 Limited types of person-associated availability Individual or corporate access policies Not associated to presence Inflexible use to reveal presence No clear and open semantics Current solutions Custom built-in Hard to integrate Presence not externalized as a service Current Presence limitations

17. Digital Enterprise Research Institute www.deri.ie 17 Enables the physical world to play a role in the presence management Dynamic context Sensor networks E.g.: physical location, activity Personalized profiles Personal or corporate policies Access control Consolidated Presence

18. Digital Enterprise Research Institute www.deri.ie 18 Enables a Watcher to be served a policy-governed, contextualized view on the availability of a Presentity Physical presence Virtual presence Personal policies, governing policies, etc Consolidated Presence

19. Digital Enterprise Research Institute www.deri.ie 19 RFC 3856 + resources and devices Presence service Management of presence information Rich presence Physical presence Sensor technology Semantic presence Semantic Web and Intranet Search technologies Unified, service-oriented manner Enterprise Context

20. Digital Enterprise Research Institute www.deri.ie 20 Intra-domain federation Abstraction from presence service heterogeneity Underlying information models, policy support, storage and processing Interchange presence information despite underlying protocols, models or policies Input: Filtering close to the edge of the network Reduce load Support scalability Federated Architecture

21. Digital Enterprise Research Institute www.deri.ie 21 Intra-domain federation Federated Architecture

22. Digital Enterprise Research Institute www.deri.ie 22 Inter-domain federation Openness and extensibility User perspective Similar to intra-domain federation Governing policies Secure and policy controlled information and communication sharing Pervasive Throughout the enterprise At the boundaries between the enterprise and external enterprises or consumer spaces Federated Architecture

23. Digital Enterprise Research Institute www.deri.ie 23 Inter-domain federation Federated Architecture

24. Digital Enterprise Research Institute www.deri.ie 24 Information integration Virtual, physical and social presence People, objects and software entities Powerful and flexible semantic techniques Low-level stream processing, sensor middleware and publish/subscribe systems Enterprise policy management Fine-grained control of sharing presence information Within single or across multiple enterprises Requirements

25. Digital Enterprise Research Institute www.deri.ie 25 Raw presence Data acquisition middleware for personal devices Publish/subscribe middleware Digested presence Semantic description of context models and policies Policy analysis and negotiation Development directions

26. Digital Enterprise Research Institute www.deri.ie 26 Data acquisition middleware for personal devices Integrate broad range of physical and virtual information sources Support for mobile devices to enable ad-hoc collaboration Extensible and adaptive filtering Development directions

27. Digital Enterprise Research Institute www.deri.ie 27 Publish/subscribe middleware Content-based solutions Integrate fast and efficient matching algorithms Fine-grained filtering of presence information Distributed solutions with efficient routing algorithms Minimize the generated traffic Support mobility across various networks, devices and access points Integrate policy-driven publish/subscribe matching and routing Development directions

28. Digital Enterprise Research Institute www.deri.ie 28 Semantic description of context models and policies Semantic Web technologies Expressive and open knowledge representation languages Dynamic extension of knowledge descriptions OWL – Web Ontology Language Standard vocabularies Axioms governing presence, location, availability, profiles and policies OPO, Geo, GeoNames, PIMO, … Development directions

29. Digital Enterprise Research Institute www.deri.ie 29 Policy analysis and negotiation Policy-based management of communication in federations of enterprises Consistency checking between enterprise’s own policies and the policies agreed with other enterprises Development directions

30. Digital Enterprise Research Institute www.deri.ie 30 Consolidated Presence Combined presence context from both virtual and physical sources Enforcement of personal and organizational policies Scenarios Requirements Technology roadmap Sensor technology Content-based publish/subscribe middleware Semantic description of context models Conclusion

31. Digital Enterprise Research Institute www.deri.ie 31 Consolidated Presence Combined presence context from both virtual and physical sources Enforcement of personal and organizational policies Conclusion Thank you! Contact: Manfred Hauswirth, DERI Galway (manfred.hauswirth@deri.org)