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Auflistung nach Autor:in "Chen, Luping"

1 - 2 von 2
  • Konferenzbeitrag
    Methods for enhancing safety wrapper design
    (Informatik 2004 – Informatik verbindet – Band 1, Beiträge der 34. Jahrestagung der Gesellschaft für Informatik e.V. (GI), 2004) Chen, Luping; May, John
    A key requirement for safety-critical systems that use Commercial Off-The- Shelf (COTS) components is that the COTS components do not compromise the reliability, safety and security of the overall system. Safety wrappers can be seen as a means to control the integration of the (often disparate in nature) components to ensure fault tolerance, quality of service and security. This paper discusses new strategies to enhance safety wrappers using a nuclear protection system example. It also illustrates a Perturbation of Interface Parameters (PIP) technique to aid and assess the new designs.
  • Konferenzbeitrag
    Safety assessment of systems embedded with COTS components by PIP technique
    (Testing of component-based systems and software quality, 2004) Chen, Luping; May, John
    The difficulties to assess reliability of systems that use COTS components are sometimes compounded by the inaccessibility of some COTS codes. This paper develops an approach of Perturbation of Interface Parameters (PIP) to simulate failures of COTS components. It is to validate the use of PIP as a fault-injection technique to test COTS components and surrounding systems. Tests of a nuclear protection system will be presented to demonstrate that PIP can be used to assess and aid safety designs in COTS based software.