Building Dynamic Market Places Using HyperQueries Christian Wiesner - PowerPoint PPT Presentation

Jul 28, 2023 •250 likes •302 views

Building Dynamic Market Places Using HyperQueries Christian Wiesner Peter Winklhofer Alfons Kemper Universitt Passau Traditional Virtual Market Places Replication Data Warehouse Traditional techniques Replicate data in a central

Building Dynamic Market Places Using HyperQueries Christian Wiesner Peter Winklhofer Alfons Kemper Universität Passau
Traditional Virtual Market Places Replication Data Warehouse � Traditional techniques � Replicate data in a central data warehouse � Severe problems � Security and privacy violations � Coherence problems � Schema integration problems � Fixed query operators
HyperQuery Market Places Registration HQ Query Processing Market Place � HyperQuery framework � Market place is intermediary � Distribute query processing along allocation schema of data � Objects & queries flow through the WWW � Scalability
Architecture QueryFlow XML Integration Services Authenticator HyperQuery HyperQuery Instantiator SOAP MP Services ServiceManager CoreSystem QueryFlow QueryFlow Register Supplier Register Messaging Service HyperQuery HyperQuery Engine (QueryFlow Operators) Register Products ObjectGlobe: - Distributed Query Processor - Basic Security
Demonstration � Example market place � Customers join the market place � Companies join the market place � Query processing � ObjectGlobe: Ubiquitous query processing on the Internet Braumandl et.al. VLDBJ 2001 � HyperQueries: Dynamic Distributed Query Processing on the Internet Kemper, Wiesner. VLDB 2001 � http://www.db.fmi.uni- passau.de/projects/QueryFlow

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