Title
NHPP Testability Growth Model Considering Testability Growth Effort, Rectifying Delay, and Imperfect Correction
Abstract
Over the last several years, many testability growth models (TGMs) have been developed to greatly facilitate engineers and managers in tracking and measuring the growth of testability as system is being improved. Most TGMs consider only one or two variation patterns of the aspects, such as the testability growth effort (TGE) in testability design limitation (TDL) identification, the rectifying delay and the new TDL introduction in TDL correction. However, the ignorance of such joint consideration may lead to a lower fitting ability to the fault detection/isolation data. Inspired by the counting idea of non-homogeneous Poisson process (NHPP), a NHPP based testability growth model (TGM) considering the recurrence rate function (RRF) of TDL identification, TDL correction and new TDL introduction is proposed for the foundation of TGM. A real data set of a missile control system is used to validate the above TGMs in fitting ability, estimation accuracy and prediction capability. Results show that the bell-shaped curve can fit the identification process and rectifying delay process of TDL well, and the imperfect correction of TDL really exists in the testability growth test (TGT), and the inflected s-shaped and Gamma function based TGM gives good capacity to the real data set.
Year
DOI
Venue
2020
10.1109/ACCESS.2019.2962528
IEEE ACCESS
Keywords
DocType
Volume
TGM,NHPP,testability growth effort,rectifying delay,imperfect correction
Journal
8
ISSN
Citations 
PageRank 
2169-3536
0
0.34
References 
Authors
0
5
Name
Order
Citations
PageRank
Tianmei Li172.15
Xiao-Sheng Si262346.17
Zonghao Yang300.34
Hong Pei400.34
Yuzhe Ma500.34