For existing testability growth models ignores the rectifying process of testability design limitations, causes the testability growth process describes incompletely, and the tracking and projecting imprecise, a Testability Growth Model (TGM) which considers the rectifying delay based on Bell-shaped curve are proposed. Firstly, the mechanism relation between the discovering process of Testability Design Limitation (TDL) and the rectifying process of TDL is analyzed. And on the basis, three bell-shaped curves are used to describe the variation tendency of remaining testability design limitations, the three bell-shaped curves are Rayleigh curve and Delay-S curve, then, TGMs which consider bell-shaped TDL rectifying delay process are founded. Finally, a data set is used to verify the fitting, estimation and prediction of TGM. Result shows that:Gamma curve is more accurate to fit the number of Remaining Testability Design Limitation (RTDL) and that TGM considering the rectifying delay can give good result in fitting, estimation and prediction, and the accuracy of estimation can reach 10-2 order of magnitude.
LI Tianmei
,
SI Xiaosheng
,
YANG Zonghao
,
XU Congqi
,
ZHANG Qi
. Foundation and assessment of testability growth model considering testability design limitation rectifying delay function[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2019
, 40(9)
: 323079
-323079
.
DOI: 10.7527/S1000-6893.2019.23079
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