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  • Author(s):
    Ankit Agrawal, Seyedehzahra Khoshmanesh, Michael Vierhauser, Mona Rahimi, Jane Cleland-Huang, Robyn Lutz
    Abstract:

    Safety Assurance Cases (SACs) are increasingly used to guide and evaluate the safety of software-intensive systems. They are used to construct a hierarchically organized set of claims, arguments, and evidence in order to provide a structured argument that a system is safe for use. However, as the system evolves and grows in size, a SAC can be difficult to maintain. In this paper we utilize design science to develop a novel solution for identifying areas of a SAC that are affected by changes t…

    Date Published:
    2019-05
  • Author(s):
    Kimberly Rollings, Nancy Wells
    Abstract:

    Strategies to reduce childhood obesity and improve nutrition include creating school food environments that promote healthy eating. Despite well-documented health benefits of fruit and vegetable (FV) consumption, many U.S. school-aged children, especially low-income youth, fail to meet national dietary guidelines for FV intake. The Cafeteria Assessment for Elementary Schools (CAFES) was developed to quantify physical attributes of elementary school cafeteria environments associated with stude…

  • Author(s):
    Kimberly Rollings, Gary Evans
    Abstract:

    Chronic crowding within housing adversely affects psychological well-being, yet little is known about how design attributes contribute to these effects, especially among children. This cross-sectional study first examined associations between residential interior density and children’s (M = 9 years of age) perceived bedroom and home crowding. Second, analyses investigated whether interior design attributes (residential floor plan arrangement measured by space syntax [depth and permeability]; …

    Date Published:
    2019
  • Author(s):
    Rick Rabiser, Klaus Schmid, Holger Eichelberger, Michael Vierhauser, Sam Guinea, Paul Gruenbacher
    Abstract:

    [Context] Complex and heterogeneous software systems need to be monitored as their full behavior often only emerges at runtime, e.g., when interacting with other systems or the environment. Software monitoring approaches observe and check properties or quality attributes of software systems during operation. Such approaches have been developed in diverse communities for various kinds of systems and purposes. For instance, requirements monitoring aims to check at runtime whether a software…

  • Author(s):
    Michael Vierhauser, Sean Beyley, Jane Wyngaard, Wandi Xiong, Joshua Huseman, Robyn Lutz, Jane Cleland-Huang
    Abstract:

    The growing adoption of unmanned aerial vehicles (UAV) for tasks such as eCommerce, aerial surveillance, and environmental monitoring introduces the need for new safety mechanisms in an increasingly cluttered airspace. In our work we thus emphasize safety issues that emerge at the intersection of infrastructures responsible for controlling the airspace, and the diverse UAVs operating in their space. We build on safety assurance cases (SAC)- a state-of-the-art solution for reasoning about safe…

  • Author(s):
    Norbert Seyff, Michael Vierhauser, Michael Schneider, Jane Cleland-Huang
    Abstract:

    [Context and motivation] With the rise of cyber-physical systems (CPS), smart ecosystems, and the Internet of Things (IoT), software-intensive systems have become pervasive in everyone’s daily life. The shift from software systems to ubiquitous adaptive software-intensive systems not only affects the way we use software but further has an impact on the way these systems are designed and developed. Gathering requirements for such systems can benefit from elicitation processes that are conducte…

  • Abstract:

    Categorization of journal articles by methodological approach/TRIP

  • 8

    Article

    Abstract:

    Avey/Desch 2014 ISQ article

  • Abstract:

    Avey/Desch 2014 ISQ article

  • Author(s):
    Jane Cleland-Huang, Michael Vierhauser
    Abstract:

    Traditionally, safety-critical projects have been developed using the waterfall process. However, this makes it costly and challenging to incrementally introduce new features and to certify the modified product for use. As a result, there has been increasing interest in adopting agile development paradigms within the safety-critical domain. This in turn introduces numerous challenges. In this paper we address the specific problems of discovering, analyzing, specifying, and managing safety req…

    Date Published:
    2018-08
  • Author(s):
    Matthew Sisk
    Abstract:

    Lead exposure is a major health hazard affecting children and their growth and is a concern in many urban areas around the world. One such city in the United States (US), South Bend Indiana, gained attention for its high levels of lead in blood and relatively low testing rates for children. We assessed current lead screening practices in South Bend and the surrounding St. Joseph County (SJC). The 2005–2015 lead screening data included 18,526 unique children. Lead screening rates ranged from 4…

  • Author(s):
    Giordano B. S. Ferreira, Matthias Scheutz, Sunny K. Boyd
    Abstract:

    Decisions about the choice of a mate can greatly impact both individual fitness and selection processes. We developed a novel agent-based model to investigate two common mate choice rules that may be used by female gray treefrogs (Hyla versicolor). In this model environment, female agents using the minimum-threshold strategy found higher quality mates and traveled shorter distances on average, compared with female agents using the best-of-n strategy. Females using the minimum-threshold stra…

    Date Published:
    2018-08