Fraunhofer Institut für Integrierte Publikations-und Informationssysteme IPSI
Now showing 1 - 10 of 10
PublicationConfiguration of distributed message converter systems( 2004)
;Risse, T. ;Aberer, K. ;Wombacher, A. ;Surridge, M.Taylor, S.Finding a configuration of a distributed system satisfying performance goals is a complex search problem that involves many design parameters, like hardware selection, job distribution and process configuration. Performance models are a powerful tool to analyze potential system configurations, however, their evaluation is expensive, such that only a limited number of possible configurations can be evaluated. In this paper we present a systematic method to find a satisfactory configuration with feasible effort, based on a two-step approach. First, performing a queuing network analysis a hardware configuration is determined and then a software configuration is incrementally optimized by simulating Layered Queuing Network models. We applied this method to the design of performant EDI converter systems in the financial domain, where increasing message volumes need to be handled due to the growing importance of B2B interaction.
PublicationCross-flow: Cross-organizational workflow management in dynamic virtual enterprises( 2000)
;Grefen, P. ;Aberer, K. ;Hoffner, Y.Ludwig, H.
PublicationBuilding a Hybrid Database Application for Structured Documents( 1999)
;Böhm, K. ;Aberer, K.Klas, W.
PublicationStructured document storage and refined declarative and navigational access mechanisms in HyperStorM( 1997)
;Böhm, K. ;Aberer, K. ;Neuhold, E.J.Yang, X.The combination of SGML and database technology allows to refine both declarative and navigational access mechanisms for structured document collection: with regard to declarative access, the user can formulate complex information needs without knowing a query language, the respective document type definition (DTD) or the underlying modelling. Navigational access is eased by hyperlink-rendition mechanisms going beyond plain link-integrity checking. With our approach, the database-internal representation of documents is configurable. It allows for an efficient implementation of operations, because DTD knowledge is not needed for document structure recognition. We show how the number of method invocations and the cost of parsing can be significantly reduced.
PublicationAn OODBMS-IRS coupling for structured documents( 1996)
;Volz, M. ;Aberer, K.Böhm, K.
PublicationStrategische Suche nach neuen Medikamenten( 1996)
;Aberer, K. ;Hemm, K. ;Kramer, B. ;Lengauer, T.Rarey, M.
PublicationHyperstorM-object-oriented database technology for innovative publishing applications( 1995)
;Aberer, K.Böhm, K.
PublicationIntegrating a relational database system into VODAK using its metaclass concept( 1994)
;Klas, W. ;Fischer, G.Aberer, K.
PublicationD-STREAT - Erweiterung der Funktionalität von Dokumentverwaltungs-systemen durch objektorientierte Datenbanken( 1994)
;Böhm, K. ;Aberer, K.Hüser, C.