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Building Dynamic Market Places Using HyperQueries

Building Dynamic Market Places Using HyperQueries. Christian Wiesner Peter Winklhofer Alfons Kemper Universität Passau. Replication. Traditional Virtual Market Places. Traditional techniques Replicate data in a central data warehouse Severe problems Security and privacy violations

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Building Dynamic Market Places Using HyperQueries

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  1. Building Dynamic Market Places Using HyperQueries Christian Wiesner Peter Winklhofer Alfons Kemper Universität Passau

  2. Replication Traditional Virtual Market Places • Traditional techniques • Replicate data in a central data warehouse • Severe problems • Security and privacy violations • Coherence problems • Schema integration problems • Fixed query operators Data Warehouse

  3. Registration Query Processing HyperQuery Market Places • HyperQuery framework • Market place is intermediary • Distribute query processing along allocation schema of data • Objects & queries flow through the WWW • Scalability HQ Market Place

  4. QueryFlow Services MP Services SOAP HyperQuery XML Integration HyperQuery Instantiator Authenticator Register Supplier CoreSystem QueryFlow QueryFlow ServiceManager Register HyperQuery Service Messaging Register Products HyperQuery Engine (QueryFlow Operators) ObjectGlobe: - Distributed Query Processor - Basic Security Architecture

  5. Demonstration • Example market place • Customers join the market place • Companies join the market place • Query processing • ObjectGlobe: Ubiquitous query processing on the InternetBraumandl et.al. VLDBJ 2001 • HyperQueries: Dynamic Distributed Query Processing on the InternetKemper, Wiesner. VLDB 2001 • http://www.db.fmi.uni- passau.de/projects/QueryFlow

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