Information Management for Crisis Response in WORKPAD


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WORKPAD (EU STREP project FP6-2005-IST-5-034749) is an experimental platform for Crisis Response which adopts a decentralized, event-driven approach to overcome problems and limitations of centralized information integration systems.

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Information Management for Crisis Response in WORKPAD

  1. 1. Information Management for Crisis Response in WORKPAD Alessandro Faraotti1, Antonella Poggi2, Berardino Salvatore3, Guido Vetere1 (1) IBM Center for Advanced Studies of Rome (2) Università di Roma quot;La Sapienzaquot; Dipartimento di Informatica e Sistemistica quot;Antonio Rubertiquot; (3) IBM Rome Solutions Lab 6th International Conference on Information Systems for Crisis Response and Management, Gothenburg, Sweden May 10th – 13th 2009 ISCRAM 2009
  2. 2. Project summary • EU SPECIFIC TARGETED RESEARCH OR INNOVATION PROJECT (STREP) - FP6-2005-IST-5-034749 • An Adaptive Peer-to-Peer Software Infrastructure for Supporting Collaborative Work of Human Operators in Emergency/Disaster Scenarios • Consortium Università degli Studi di Roma LA SAPIENZA  Università degli Studi di Roma TOR VERGATA  IBM Center for Advanced Studies of Rome  Salzburg Research  TECHNISCHE UNIVERSITAET WIEN  APIF MOVIQUITY S.A.  SOFTWARE 602 A.S. Research  Regione Calabria – Protezione Civile  • Start date: Sept. 2006 • Duration: 36 months ISCRAM 2009
  3. 3. Goals • Enhance current crisis response IT infrastructures by developing an open innovative platform (middleware, software, models) • Support collaborative work of autonomous, decentralized organizations, with both field and back office forces, in a powerful, flexible and yet (hopefully) simple way • Reach a better understanding of key problems of information integrationexchange for crisis management, and drive further research ISCRAM 2009
  4. 4. State of the Art (Italy) Provides Collects data, information Hierarchical, unstructured plans and integration & Central coordinates exchange IT information flows Control operations Room Command Coordination Coordination Few or no Center Center information flows Interfaces operating Operating Operating Operating Operating organization Center Center Center Center s Few or no Operative Operative Operative IT Control Room Control Room Control Room Coordination ISCRAM 2009
  5. 5. Requirements • To effectively manage crises, many different organizations (fire brigades, red cross, army, volunteers, etc) must reach a high degree of coordination by timely exchange meaningful information • Response organizations have to manage unpredictable situations, re-adjust priorities, collect information from multiple sources and evaluate them, receive and transmit orders • Because of complexity, integration cannot be completely designed and implemented before real crises occur: “the value of planning decreases with the increase of the events' complexity” (Caesar Augustus) ISCRAM 2009
  6. 6. Working Hypotheses Peer to peer networking provides better robustness, dependability,  adaptability, and flexibility No dependence on centralized infrastructures  Systems can dynamically enter and leave the network  Integration must be achieved by mapping heterogeneous  conceptualizations No semantic standards (shared ontologies) in place  Critical updates must be notified to potentially interested parties  Asynchronous, query-time data integration is not enough  Need to supplement it with event-handling capabilities  ISCRAM 2009
  7. 7. The Proposed Architecture P2P semantically integrated network to be dynamically set-up for inter-organization coordination purposes ORK NETW ND BACK-E MANET Operating Center TWOR Coordination Operative ND NE ONT-E Center Control Room Reliable BE-FE FR link Central Coordination Operating Control Center Center ORK Room NETW END RONT- Mobile ad-hoc networks of Operating Operative devices Center Control Room MANET Coordination Center ISCRAM 2009
  8. 8. P2P semantic integration • Centralized information integration systems based on mediators provide: Ontology (global view)  Mappings of O with source DB schemes (GAV, LAV, GLAV)  Certain answers over the first-order structure O+M+DB(s)  • In P2P environments, each system (peer) acts both as source and mediator First-order semantics is inadequate (as long as mapping is free) [Halevy  & al, 03] Need to resort on multi-modal (epistemic) logic [Calvanese & al, 03]  Main issues   Decidability, tractability  Logical soundness & completeness  Network-wide naming ISCRAM 2009
  9. 9. How WORKPAD’s semantic integration works 1 1. Each node exports an ontology (UML, DL-Lite, OWL2- conjunctive query QL) ● City is_a Place(NAME) 2. Semantic mappings (GAV) with data sources are WS manifest ontology manifest ntolo established ● CAPITAL(ID) → City(lookup(ID)) ● TOWN(NM) → City(lookup(NM)) reasoning & query mgr 3. Individual terms are mapped by specific functions mappings notification (e.g. string manipulation, lookup) mgr 4. Queries are conjunctions expressed in terms of ontology concepts ● x,y | Place(x), NAME(x,y) DB 5. Queries get reformulated in terms of source schemes or other ontologies, based on mappings ISCRAM 2009
  10. 10. How WORKPAD’s semantic integration works 2 6. Suitable sub-queries are propagated to wrapped conjunctive query information sources, either local or remote 7. Consistency of local data is up to local DBMS WS manifest ontology manifest ntolo 8. Network data items get integrated based on a “doxastic approach” [Vetere & al, 08] ● No direct “knowledge transfer” reasoning & query mgr ● Knowledge integration rules mappings notification ● Reasoning on data provenance and majorities mgr 9.Updates are propagated through a publish- subscribe mechanism ● Notifications of updates may be used to optimize DB data access or raise alerts ISCRAM 2009
  11. 11. More on notification management WORKPAD peers should support a specific subscription service • notify Any client (either a WORKPAD peer P or an external • application) that is interested in receiving updates from a peer P', must implement a specific notification endpoint, which P' will use when notifying updates Subscription topics are defined with respect to the publisher’s • ontology (concept, role, and attributes) WORKPAD prototypical implementation provides own point-to- • subscribe point notification capabilities, with basic features such as message persistence, delivery and retry mappings notificat ion mgr Event management infrastructures can be leveraged if • available ISCRAM 2009
  12. 12. Inside a WORKPAD Peer ISCRAM 2009
  13. 13. How to set up a Peer 1. Pick up an ontology and extend it if needed, or develop a new one 2. Map it with your local DBMS 3. Identify other peers 4. Map other peers' ontologies with the local one 5. Subscribe for updates you are interest in 6. Iterate on previous steps if needed ISCRAM 2009
  14. 14. Conclusion • WORKPAD information platform is designed to semantically integrate control rooms, headquarters, civil protection organizations in a P2P way Simple, robust, dependable, standards-based framework  Decentralized semantic integration  Endpoint based event handling  • What we achieved A better understanding of crisis related information management  A formal framework including new paradigms of Information Integration  A prototypical running implementation based on Web Services  • What we plan Refine the formal framework  Refine the implementation to provide an industrial-strength solution  Provide a concrete roll-out  ISCRAM 2009
  15. 15. Thanks WORKPAD More details: IEEE Internet Computing, January/February 2008 (Vol. 12, No. 1)   pp. 26-37 ISCRAM 2009