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Auflistung nach Autor:in "Zimmermann, Olaf"

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  • Konferenzbeitrag
    Improving the Search for Architecture Knowledge in Online Developer Communities
    (Software Engineering and Software Management 2019, 2019) Soliman, Mohamed; Rekaby, Amr; Galster, Matthias; Zimmermann, Olaf; Riebisch, Matthias
    When architecting a software system, software engineers search for architectural solutions (e.g. technologies), which fulfill certain requirements. Current approaches for architecture knowledge repositories facilitate learning about different architectural solutions. Nevertheless, the rapid and continuous increase of solution alternatives makes it challenging to manually acquire architecture knowledge and to ensure that this knowledge is up to date. Our goal in this paper is to improve how software engineers search for architecturally relevant information in online developer communities. We developed a new search approach for architecturally relevant information using Stack Overflow as an example of an online developer community. Our search approach differs from a conventional keyword-based search in that it considers semantic information of architecturally relevant concepts in Stack Overflow. We implemented the search approach as a web-based search engine. To show the effectiveness of the search approach compared to a conventional keyword-based search, we conducted an experiment with 16 practitioners. To ensure realism of the experiment, tasks given to practitioners are based on real scenarios identified in a separate interview study. The experiment showed that the new search approach significantly outperforms a conventional keyword-based search. The full paper of this extended Abstract has been published in [So18].
  • Konferenzbeitrag
    Microservices and Containers
    (Software Engineering 2020, 2020) Pahl, Claus; Jamshidi, Pooyan; Zimmermann, Olaf
    Software architecture research needs to address the specific needs and constraints of specific deployment contexts. We propose an architectural style for cloud-deployed software referring to principles and patterns. Patterns map abstract principles to development and deployment platform solution templates Together, principles and patterns link common software architecture concepts, such as services, adaptivity or models at runtime, to deployment specifics such as virtualisation and controller-based feedback loops. The results of this broader framework shall be discussed in the context of recent trends such as microservices.
  • Zeitschriftenartikel
    Web services-oriented architecture in production in the finance industry
    (Informatik-Spektrum: Vol. 27, No. 2, 2004) Brandner, Michael; Craes, Michael; Oellermann, Frank; Zimmermann, Olaf
    Effective and affordable business process integration is key in the finance industry. With the help of IBM Global Services and IBM Software Group, Sparkassen Informatik, a large German joint-use centre supplying services to 236 individual savings banks, enhanced the integration capabilities of its core banking system (500+ complex functions) through aggressive use of Web services.