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Volume 41 Issue 1
Jan.  2015
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Journal of Beijing University of Aeronautics and Astronautics  > 2015  >  41(1): 90-95.
YIN Yuanwei, SHANG Chaoxuan, MA Yanheng, et al. Method of testability evaluation using hierarchical testability model[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(1): 90-95. doi: 10.13700/j.bh.1001-5965.2014.0029(in Chinese)
Citation: YIN Yuanwei, SHANG Chaoxuan, MA Yanheng, et al. Method of testability evaluation using hierarchical testability model[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(1): 90-95. doi: 10.13700/j.bh.1001-5965.2014.0029(in Chinese)
shu

Method of testability evaluation using hierarchical testability model

doi: 10.13700/j.bh.1001-5965.2014.0029
  • 1.

    Department of Electronic and Optical Engineering, Ordnance Engineering College, Shijiazhuang 050003, China

  • 2. Department of UAV Engineering, Ordnance Engineering College, Shijiazhuang 050003, China

  • Received Date: 15 Jan 2014
  • Publish Date: 20 Jan 2015
    Abstract
  • The layered and modularized design is always used in complex electronic equipment, where the maintenance level and test requirement are both characterized by hierarchy configuration. Therefore, a novel evaluation approach was presented based on hierarchical testability model. The multi-signal flow graph model has ability to present multi-fault factors, according to the hierarchical classification based on maintenance level and physical structure of equipment, the multi-signal flow graph model could be established for each level respectively. For any part which can't be tested or maintained, the multi-signal flow graph model would be established on lower level; thereby the hierarchical testability model was built up. The hierarchical dependence matrix was obtained based on above model, and then the testing level of equipment on each maintenance level was obtained by using the mathematical model of testability evaluation. The analysis results of example prove that this method could effectively evaluate the testability levels of equipments in different situations, at the same time this method could provide available guidance and assistance for the design of testability and maintenance.

     

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