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Auflistung nach Autor:in "Weber, Sebastian"

1 - 10 von 15
  • Konferenzbeitrag
    Co-Simulation of Hardware and Software in Palladio
    (Softwaretechnik-Trends Band 43, Heft 1, 2023) Weber, Sebastian; Henss, Jörg; Reussner, Ralf
    To ensure the fulfilment of quality requirements, for example performance, at design time, the software architect can model the software and simulate it with Palladio. The accuracy of the model depends on the estimation of resource demands, which is difficult and error prone. Therefore, in the later stages of development, values should be evaluated based on available information instead of being estimated. An unavailable component implementation or delayed hardware access should not force the software architect to stick with the estimation, but be compensated otherwise, for example with prototypes or hardware simulation. This paper presents six approaches to adapt the evaluation of hardware resource usage in the Palladio software architecture simulation by incorporating co-simulation techniques to compensate different shortcomings. Possible usage scenarios of the approaches are presented and put in relation to the estimated development effort. We present our initial results of implementing one of the approaches, the integration of a hardware-simulation-based resource demand estimation in Palladio. It can compensate unavailable hardware, despite hardware specifications and software being available. The results show that the parameterization options of the hardware simulation were not sufficient to achieve the desired accuracy and the simulation time increases significantly.
  • Konferenzbeitrag
    Entwurf und praktische Erprobung einer Reengineering-Strategie für das Modellierungswerkzeug 3LGM2-Baukasten
    (Softwaretechnik-Trends Band 25, Heft 2, 2005) Weber, Sebastian; Wendt, Thomas; Funkat, Gert
    Zur Modellierung von Krankenhausinformationssystemen wird am Institut für Medizinische Informatik, Statistik und Epidemiologie (IMISE) der Universität Leipzig das Metamodell 3LGM2 entwickelt. Dieses soll durch eine graphische Darstellung des Informationssystems das Verständnis für die Funktion des Systems, sowie dessen Wartbarkeit und Erweiterbarkeit unterstützen. Um die Modellierung von Informationssystemen mit Hilfe des Metamodells 3LGM2 zu vereinfachen, wurde vor nunmehr drei Jahren damit begonnen, eine Software zu entwickeln, welche den Informationsmanager bei dieser Aufgabe unterstützt. Diese, der so genannte 3LGM2-Baukasten, ist nun zu einem sehr umfangreichen Werkzeug angewachsen, mit dem es möglich ist, komplexe Systeme zu modellieren. Zu den umfangreichen Funktionen gehören u.a. die Darstellung des modellierten Informationssystems über verschiedene Ansichten, das Anfertigen von Analysen und den Nutzer unterstützende Funktionen, wie das Importieren und Exportieren von Modellen und eine umfassende Online-Hilfe.
  • Workshopbeitrag
    Illuminating the Predictive Power of Gamification to Inspire Technology Users
    (Mensch und Computer 2023 - Workshopband, 2023) Weber, Sebastian; Klassen, Gerhard; Wyszynski, Marc; Kordyaka, Bastian
    This study explores the relationship between gamification design features and the motivational state of inspiration in the context of eLearning. We focus on three dimensions of gamification: immersion, achievement, and social. Using a cross-sectional survey design, covariance-based statistics, and structural equation modeling, we collected data from users of a language learning app. Our findings reveal that achievement-related gamification features, such as badges, points, levels, and tasks, evoke inspiration and foster the inspiration to learn. However, neither immersion-related nor social-related gamification features serve as a source of inspiration. This research contributes to the understanding of how gamification can be leveraged to enhance inspiration and possibly learning outcomes in eLearning environments.
  • Konferenzbeitrag
    Investigating the suitability of web X.Y features for software engineering – Towards an empirical survey
    (Software Engineering 2009 - Workshopband, 2009) Ras, Eric; Rech, Jörg; Weber, Sebastian
    Today, software engineers strongly rely on information while they perform development activities in the different software engineering (SE) phases. The results of a previous survey showed that most information is required during the phases of requirements engineering (RE), design, programming, and project management. Web X.Y features (i.e., concepts and technologies) facilitate collaboration and communication with distributed individuals and help to cope with the immense amount of information by simplifying the organization, integration, and reuse of information scattered across diverse content sources. After presenting the features of the different Web X.Y generations (i.e., Web 2.0, Web 2.5, and Web 3.0), we propose a weighted mapping for the relevancy of these Web X.Y features regarding their support for the four SE phases with the highest need for information. Based on this subjective mapping, a set of research questions and hypotheses is derived that form the basis of an empirical survey. The goal of this survey is to investigate the potential of Web X.Y features for SE.
  • Konferenzbeitrag
    Knowledge services for experience factories
    (WM2009: 5th conference on professional knowledge management, 2009) Ras, Eric; Rech, Jörg; Weber, Sebastian
    The Experience Factory (EF) is an infrastructure designed to support experience management (e.g., the reuse of experience) in software organizations. It supports the collection, processing, management, analysis, and dissemination of experiences made on the job. One key issue of experience management is the aggregation of these documented experiences into more valuable patterns and laws. In this article, we describe how the different activities in an experience factory can be supported by knowledge services. Knowledge services are especially valuable for maturing activities, such as formalization and generalization. We describe how to leverage Web 2.0 concepts as features of an experience management system in order to implement the knowledge services.
  • Konferenzbeitrag
    Multi-level Hardware Simulation in Palladio
    (Softwaretechnik-Trends Band 43, Heft 4, 2023) Weber, Sebastian; Taghavi, Bahareh
    Predicting the fulfillment of quality requirements, e.g., performance, is important during design and implementation of a software system to ensure its implementation can meet these requirements. Model-based analysis is a common approach to get such predictions. It usually requires a trade-off between the accuracy of the result and the execution time of the analysis, because resources for the execution of the analysis are limited, but some components might require a more accurate analysis. When looking at traditional model-based analyses, like the Palladio approach, the user can decide this trade-off and with it the level of granularity of the model and simulation only prior to, but not throughout, the simulation execution. In addition, the complexity and heterogeneity of systems is increasing which complicates modelling and analysis on a single level further. This paper presents a concept for the extension of the Palladio approach to support modelling and analysis of systems on multiple levels of abstraction to overcome these limitations.
  • Konferenzbeitrag
    parKLight App – Fallstudie über die Konzeption einer mobilen App zur Parkunterstützung in Kaiserslautern
    (UP14 - Vorträge, 2014) Weber, Sebastian; Jung, Jessica; Hess, Steffen
    Im Rahmen des von der Stadt Kaiserslautern initiierten Projekts „BürgerSchafftWissen“ wurde auf Basis von Bürgerideen prototypisch die „parKLight App“ entwickelt, die in diesem Beitrag vorgestellt wird. Ziel des Projekts war es innovative, nutzerzentrierte Anwendungsfälle rund um das Thema „Parken“ durch App-Funktionalitäten zu unterstützen oder zu verbessern. Ein wichtiger Bestandteil des Projekts war es ebenfalls, die Bürgerinnen und Bürger der Stadt Kaiserslautern in die App-Entwicklung miteinzubinden. Mit Hilfe der Integration einer Fragebogenstudie konnten potenzielle Benutzer aus Kaiserslautern ihre Wünsche und Anforderungen an die App äußern und sich somit an der Konzeption und Entwicklung der Kaiserslauterer „ParKLight App“ beteiligen. Als Ergebnis wurde ein Konzept für die App-Funktionen erarbeitet und ein interaktiver Klick-Prototyp entwickelt. Weiterhin wurden das Interaktionskonzept und -design hinsichtlich ihrer Benutzerfreundlichkeit mit Benutzern getestet. Das Projekt und dessen Ergebnisse werden im folgenden Dokument vorgestellt und durch gesammelte Erkenntnisse in Bezug auf E-Government-Projekte ergänzt.
  • Konferenzbeitrag
    Potentials of Green Coding - Findings and Recommendations for Industry, Education and Science
    (INFORMATIK 2023 - Designing Futures: Zukünfte gestalten, 2023) Junger, Dennis; Westing, Max; Freitag, Christopher; Guldner, Achim; Mittelbach, Konstantin; Weber, Sebastian; Naumann, Stefan; Wohlgemuth, Volker
    Progressing digitalization and increasing demand and use of software cause rises in energy- and resource consumption from information and communication technologies (ICT). This raises the issue of sustainability in ICT, which increasingly includes the sustainability of the software products themselves and the art of creating sustainable software. To this end, we conducted an analysis to gather and present existing literature on three research questions relating to the production of ecologically sustainable software (’Green Coding’) and to provide orientation for stakeholders approaching the subject. We compile the approaches to Green Coding and Green Software Engineering (GSE) that have been published since 2010. Furthermore, we considered ways to integrate the findings into existing industrial processes and higher education curricula to influence future development in an environmentally friendly way.
  • Zeitschriftenartikel
    Studenten und wissenschaftliche Forschung: Über Kommunikationsqualität in Verhandlungen und die Erfahrungen beim ersten Konferenzbesuch
    (Wirtschaftsinformatik: Vol. 48, No. 6, 2006) Kügler, Jens; Ostertag, Katja; Vangerow, Andreas; Weber, Sebastian
  • Konferenzbeitrag
    Supporting software development teams with a semantic process- and artifact-oriented collaboration environment
    (Software Engineering 2009 - Workshopband, 2009) Weber, Sebastian; Emrich, Andreas; Broschart, Jörg; Ras, Eric; Ünalan, Özgür
    The focus of this paper is on how to support small software teams in tailoring and following organization-specific process models by using a lightweight and flexible approach to reduce the visible complexity of software projects. We introduce the SPACE (Semantic Processand Artifact-oriented Collaboration Environment) concept, which describes working processes and an associated approach. These models are integrated semantically, thereby enabling various kinds of analytic techniques, and thus making it easier to cope with the complexity of processes. Pre-defined templates can be configured to actual working processes and artifacts exchanged in such processes. In this paper, we adapt SPACE to the software engineering domain by using the domain-specific Software Organization Platform (SOP). In this context, the templates contain process and artifact descriptions of software process models, such as V-Model, RUP, or agile development.