Because of the inevitable debugging lag,imperfect debugging process is used to replace perfect debugging process in the analysis of software reliability growth model.Considering neither testing-effort nor testing cove...Because of the inevitable debugging lag,imperfect debugging process is used to replace perfect debugging process in the analysis of software reliability growth model.Considering neither testing-effort nor testing coverage can describe software reliability for imperfect debugging completely,by hybridizing testing-effort with testing coverage under imperfect debugging,this paper proposes a new model named GMW-LO-ID.Under the assumption that the number of faults is proportional to the current number of detected faults,this model combines generalized modified Weibull(GMW)testing-effort function with logistic(LO)testing coverage function,and inherits GMW's amazing flexibility and LO's high fitting precision.Furthermore,the fitting accuracy and predictive power are verified by two series of experiments and we can draw a conclusion that our model fits the actual failure data better and predicts the software future behavior better than other ten traditional models,which only consider one or two points of testing-effort,testing coverage and imperfect debugging.展开更多
In view of the flaws of component-based software （CBS） reliability modeling and analysis, the low recognition degree of debugging process, too many assumptions and difficulties in obtaining the solution, a CBS relia...In view of the flaws of component-based software （CBS） reliability modeling and analysis, the low recognition degree of debugging process, too many assumptions and difficulties in obtaining the solution, a CBS reliability simulation process is presented incorporating the imperfect debugging and the limitation of debugging resources. Considering the effect of imperfect debugging on fault detec- tion and correction process, a CBS integration testing model is sketched by multi-queue muhichannel and finite server queuing model （MMFSQM）. Compared with the analytical method based on pa- rameters and other nonparametric approaches, the simulation approach can relax more of the usual reliability modeling assumptions and effectively expound integration testing process of CBS. Then, CBS reliability process simulation procedure is developed accordingly. The proposed simulation ap- proach is validated to be sound and effective by simulation experiment studies and analysis.展开更多
Software reliability model is the tool to measure the software reliability quantitatively. Hazard-Rate model is one of the most popular ones. The purpose of our research is to propose the hazard-rate model considering...Software reliability model is the tool to measure the software reliability quantitatively. Hazard-Rate model is one of the most popular ones. The purpose of our research is to propose the hazard-rate model considering fault level for Open Source Software (OSS). Moreover, we aim to adapt our proposed model to the hazard-rate considering the imperfect debugging environment. We have analyzed the trend of fault severity level by using fault data in Bug Tracking System (BTS) and proposed our model based on the result of analysis. Also, we have shown the numerical example for evaluating the performance of our proposed model. Furthermore, we have extended our proposed model to the hazard-rate considering the imperfect debugging environment and showed numerical example for evaluating the possibility of application. As the result, we found out that performance of our proposed model is better than typical hazard-rate models. Also, we verified the possibility of application of proposed model to hazard-rate model considering imperfect debugging.展开更多
本文旨在探讨基于全寿命周期理念的实物ID全流程贯通管控模式。通过对全寿命周期管理理念的深入解析,结合物资管理的实际需求,本文提出了一种创新的物资管理模式。该模式通过为实物资产分配唯一的实物ID,并将其与项目编码、WBS编码、物...本文旨在探讨基于全寿命周期理念的实物ID全流程贯通管控模式。通过对全寿命周期管理理念的深入解析,结合物资管理的实际需求,本文提出了一种创新的物资管理模式。该模式通过为实物资产分配唯一的实物ID,并将其与项目编码、WBS编码、物料编码、设备编码、调度编码、资产编码和废旧物资编码等关键编码进行关联,实现了资产全寿命周期内的信息整合和共享。本文首先分析了全寿命周期管理存在的问题和挑战,然后详细阐述了实物ID全流程贯通模式的构建,包括编码规则制定、八码信息关联、信息管理系统构建、典型场景应用等方面。最后,通过典型场景验证了该模式的可行性和有效性,并展望了其未来的发展趋势。The purpose of this paper is to discuss the full-process control mode of physical ID based on the concept of full life cycle. Through the in-depth analysis of the whole life cycle management concept and the actual needs of material management, this paper proposes an innovative material management model. This model realizes the integration and sharing of information throughout the life cycle of assets by assigning unique physical IDs to physical assets and associating them with key codes such as project code, WBS code, material code, equipment code, scheduling code, asset code and waste material code. This paper first analyzes the existing problems and challenges of life cycle management, and then elaborates on the construction of the whole process of physical ID, including the formulation of coding rules, the association of eight-code information, the construction of information management system, and the application of typical scenarios. Finally, the feasibility and effectiveness of the model are verified by typical scenarios, and its future development trend is prospected.展开更多
基金supported by the National Natural Science Foundation of China(No.U1433116)the Aviation Science Foundation of China(No.20145752033)
文摘Because of the inevitable debugging lag,imperfect debugging process is used to replace perfect debugging process in the analysis of software reliability growth model.Considering neither testing-effort nor testing coverage can describe software reliability for imperfect debugging completely,by hybridizing testing-effort with testing coverage under imperfect debugging,this paper proposes a new model named GMW-LO-ID.Under the assumption that the number of faults is proportional to the current number of detected faults,this model combines generalized modified Weibull(GMW)testing-effort function with logistic(LO)testing coverage function,and inherits GMW's amazing flexibility and LO's high fitting precision.Furthermore,the fitting accuracy and predictive power are verified by two series of experiments and we can draw a conclusion that our model fits the actual failure data better and predicts the software future behavior better than other ten traditional models,which only consider one or two points of testing-effort,testing coverage and imperfect debugging.
基金Supported by the National High Technology Research and Development Program of China(No.2008AA01A201)the National Nature Science Foundation of China(No.60503015,90818016)
文摘In view of the flaws of component-based software （CBS） reliability modeling and analysis, the low recognition degree of debugging process, too many assumptions and difficulties in obtaining the solution, a CBS reliability simulation process is presented incorporating the imperfect debugging and the limitation of debugging resources. Considering the effect of imperfect debugging on fault detec- tion and correction process, a CBS integration testing model is sketched by multi-queue muhichannel and finite server queuing model （MMFSQM）. Compared with the analytical method based on pa- rameters and other nonparametric approaches, the simulation approach can relax more of the usual reliability modeling assumptions and effectively expound integration testing process of CBS. Then, CBS reliability process simulation procedure is developed accordingly. The proposed simulation ap- proach is validated to be sound and effective by simulation experiment studies and analysis.
文摘Software reliability model is the tool to measure the software reliability quantitatively. Hazard-Rate model is one of the most popular ones. The purpose of our research is to propose the hazard-rate model considering fault level for Open Source Software (OSS). Moreover, we aim to adapt our proposed model to the hazard-rate considering the imperfect debugging environment. We have analyzed the trend of fault severity level by using fault data in Bug Tracking System (BTS) and proposed our model based on the result of analysis. Also, we have shown the numerical example for evaluating the performance of our proposed model. Furthermore, we have extended our proposed model to the hazard-rate considering the imperfect debugging environment and showed numerical example for evaluating the possibility of application. As the result, we found out that performance of our proposed model is better than typical hazard-rate models. Also, we verified the possibility of application of proposed model to hazard-rate model considering imperfect debugging.
文摘本文旨在探讨基于全寿命周期理念的实物ID全流程贯通管控模式。通过对全寿命周期管理理念的深入解析,结合物资管理的实际需求,本文提出了一种创新的物资管理模式。该模式通过为实物资产分配唯一的实物ID,并将其与项目编码、WBS编码、物料编码、设备编码、调度编码、资产编码和废旧物资编码等关键编码进行关联,实现了资产全寿命周期内的信息整合和共享。本文首先分析了全寿命周期管理存在的问题和挑战,然后详细阐述了实物ID全流程贯通模式的构建,包括编码规则制定、八码信息关联、信息管理系统构建、典型场景应用等方面。最后,通过典型场景验证了该模式的可行性和有效性,并展望了其未来的发展趋势。The purpose of this paper is to discuss the full-process control mode of physical ID based on the concept of full life cycle. Through the in-depth analysis of the whole life cycle management concept and the actual needs of material management, this paper proposes an innovative material management model. This model realizes the integration and sharing of information throughout the life cycle of assets by assigning unique physical IDs to physical assets and associating them with key codes such as project code, WBS code, material code, equipment code, scheduling code, asset code and waste material code. This paper first analyzes the existing problems and challenges of life cycle management, and then elaborates on the construction of the whole process of physical ID, including the formulation of coding rules, the association of eight-code information, the construction of information management system, and the application of typical scenarios. Finally, the feasibility and effectiveness of the model are verified by typical scenarios, and its future development trend is prospected.
