@inproceedings {INPROC-2007-108,
    author = {Ralf Wagner and Bernhard Mitschang},
    title = {{A Methodology and Guide for Effective Reuse in Integration Architectures for Enterprise Applications}},
    booktitle = {Distributed Objects and Applications (DOA) 2007 International Conference},
    publisher = {.},
    institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
    pages = {522--539},
    type = {Konferenz-Beitrag},
    month = {November},
    year = {2007},
    language = {Englisch},
    cr-category = {A.0 General Literature, General},
    department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Anwendersoftware},
    abstract = {},
    url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2007-108&engl=0}
 }

@inproceedings {INPROC-2007-107,
    author = {Ralf Wagner and Bernhard Mitschang},
    title = {{Flexible Reuse of Middleware Infrastructures in Heterogeneous IT Environments}},
    booktitle = {Proceedings of the IEEE International Conference on Information Reuse and Integration},
    publisher = {.},
    institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
    pages = {323--328},
    type = {Konferenz-Beitrag},
    month = {August},
    year = {2007},
    language = {Englisch},
    cr-category = {A.0 General Literature, General},
    department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Anwendersoftware},
    abstract = {},
    url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2007-107&engl=0}
 }

@inproceedings {INPROC-2007-106,
    author = {Ralf Wagner and Bernhard Mitschang},
    title = {{A Virtualization Approach for Reusing Middleware Adapters}},
    booktitle = {Proceedings of the Ninth International Conference on Enterprise Information Systems},
    publisher = {.},
    institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
    pages = {78--85},
    type = {Konferenz-Beitrag},
    month = {Juni},
    year = {2007},
    language = {Englisch},
    cr-category = {A.0 General Literature, General},
    department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Anwendersoftware},
    abstract = {},
    url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2007-106&engl=0}
 }

@inproceedings {INPROC-2001-32,
    author = {Holger Schwarz and Ralf Wagner and Bernhard Mitschang},
    title = {{Improving the Processing of Decision Support Queries: The Case for a DSS Optimizer}},
    booktitle = {Proc. of the 2001 International Database Engineering \& Applications Symposium (IDEAS), July 16-18, 2001},
    editor = {Michel Adiba and Christine Collet and Bipin C. Desai},
    address = {Los Alamitos, Washington, Brussels, Tokyo},
    publisher = {IEEE Computer Society},
    institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Germany},
    pages = {177--186},
    type = {Konferenz-Beitrag},
    month = {Juli},
    year = {2001},
    isbn = {0-7695-1140-6},
    keywords = {Decision Support; OLAP; Data Warehouse},
    language = {Englisch},
    cr-category = {H.4.2 Information Systems Applications Types of Systems},
    ee = {ftp://ftp.informatik.uni-stuttgart.de/pub/library/ncstrl.ustuttgart_fi/INPROC-2001-32/INPROC-2001-32.pdf},
    contact = {holger.schwarz@informatik.uni-stuttgart.de},
    department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte H{\"o}chstleistungsrechner, Anwendersoftware},
    abstract = {Many decision support applications are built upon data mining and OLAP tools
      and allow users to answer information requests based on a data warehouse that
      is managed by a powerful DBMS. In this paper, we focus on tools that generate
      sequences of SQL statements in order to produce the requested information. Our
      thorough analysis revealed that many sequences of queries that are generated by
      commercial tools are not very efficient. An optimized system architecture is
      suggested for these applications. The main component is a DSS optimizer that
      accepts previously generated sequences of queries and remodels them according
      to a set of optimization strategies, before they are executed by the underlying
      database system. The advantages of this extended architecture are discussed and
      a couple of appropriate optimization strategies are identified. Experimental
      results are given, showing that these strategies are appropriate to optimize
      typical query sequences of an OLAP application.},
    url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2001-32&engl=0}
 }