Logo des Repositoriums

Auflistung nach Schlagwort "testing"

1 - 5 von 5
  • Zeitschriftenartikel
    Evidence-driven Testing and Debugging of Software Systems
    (Softwaretechnik-Trends Band 42, Heft 2, 2022) Soremekun, Ezekiel
    This article is a summary of the dissertation titled “Evidence-driven Testing and Debugging of Software Systems” submitted in April, 2021 for the degree Doctor of Engineering (Dr.-Ing.) in Soft ware Engineering at the Faculty of Mathematics and Computer Science, Saarland University, Germany. This dissertation proposes an evidence-driven approach to address several challenges in software testing and debugging. This work provides several empirical data and methods to guide researchers to build and evaluate testing and debugging aids. We have proposed a hybrid approach that synergistically combines the strengths of dynamic slicing and statistical debugging.
  • Textdokument
    Improvements in Crash Consistency Testing for Persistent Memory File Systems
    (Tagungsband des FG-BS Frühjahrstreffens 2024, 2024) Werling, Lukas; Oder, Thomas-Christian; Wäldele, Lucas; Ritz, Daniel; Bellosa, Frank
    Achieving crash consistency in persistent memory (PM) applications is difficult due to the need for fine-granular cache flushes and memory fences. File systems are no exception. Previous works have found numerous bugs in PM file systems, but crash consistency testing as part of file system development is still rare. With this paper, we make crash consistency testing easier by improving Vinter, a crash consistency testing tool for file systems based on virtual machines. We introduce support for cross-media file systems with NVMe and PM that are not covered by other testing tools. To speed up testing, we add an alternative algorithm for simulating crashes that focuses on logic bugs rather than misuse of PM primitives.
  • Konferenzbeitrag
    Die Sicht des Kunden: Unterschiede in der Website-Bewertung
    (Mensch und Computer 2017 - Usability Professionals, 2017) Dames, Hannah; Sackmann, Timo; Thielsch, Meinald T.
    By the Lean User Experience approach the emphasis of User Testing has shifted from a strongly methodological to a more pragmatic approach including less effort regarding the selection and screening of test participants. However, the results of the current study indicate that the characteristics of website visitors, namely if they are registered or non-registered customers, have a strong impact on the given evaluations in established user experience metrics. N=481 participants completed an international online survey after interacting with websites of two online fashion stores under two different conditions. Half of the participants freely explored the websites, whereas the other half fulfilled specific tasks on them. Registered customers rated the content quality and the aesthetical appeal of a website significantly higher than non-registered ones. Besides, strong differences were found for the intention to revisit and recommendation the website.
  • Textdokument
    Towards a certification scheme for IoT security evaluation
    (INFORMATIK 2021, 2021) Barakat, Raman; Catal, Faruk; Hackel, Sascha; Rennoch, Axel; Schneider, Martin A.
    Many European and international standardization bodies and industrial organizations do provide more or less detailed specification catalogues addressing IoT product security requirements, test cases and evaluation methods. In this contribution, a dedicated set of relevant standards, guides and recommendations which recently have been recognized by the European Union Agency for Cybersecurity (ENISA) will be introduced. Special attention is given to their contribution for the security evaluation process and the product quality itself, including the level of details regarding their suitability for test definition and execution.
  • Konferenzbeitrag
    Towards Testing the Performance Influence of Hypervisor Hypercall Interface Behavior
    (Softwaretechnik-Trends Band 39, Heft 4, 2019) Beierlieb, Lukas; Iffländer, Lukas; Kounev, Samuel; Milenkoski, Aleksandar
    With the continuing rise of cloud technology hypervisors play a vital role in the performance and reliability of current services. Hypervisors offer so-called hypercall interfaces for communication with the hosted virtual machines. These interfaces require thorough robustness to assure performance, security, and reliability. Existing research focusses on finding hypercall-related vulnerabilities. In this work, we discuss open challenges regarding hypercall interfaces. To address these challenges, we propose an extensive framework architecture to perform robustness testing on hypercall interfaces. This framework supports test campaigns and modeling of hypercall interfaces.