Software and hardware reliability testing method and system based on mission section

Abstract

The invention discloses a software and hardware reliability testing method and system based on a mission section. The software and hardware reliability testing method comprises the following steps of: recording mission stages and various working manners corresponding to the mission stages; combining process operations of equipment into a test cast sequence according to the conversion of the working manners of the mission stages, thus obtaining software mission stress; and expanding environment stress on the basis of the mission section, and estimating execution probability of the software stress under the environment stress. The software and hardware reliability testing method and system provided by the invention can convert the emphasis on the aspects of conformity quality and hardware quality to the emphasis on adaptability quality and both software and hardware quality. The software and hardware reliability testing method and system attach importance to a user employment and equipment application environment, and combines comprehensive software and hardware test environments on the basis of the conventional hardware test and software test platform, so that actual application can be more accurately simulated in a lab, the reliability of the equipment can be effectively improved, and the equipment reliability can be comprehensively, scientifically and accurately estimated.

Description

technical field [0001] The invention relates to a reliability testing technology, in particular to a task profile-based software and hardware reliability testing method and system. Background technique [0002] When evaluating the reliability of a software-intensive system, the traditional system reliability test method does not combine the software operation profile to run the software, so the function of the software cannot be fully tested; and when the software test is performed alone, it does not consider the impact of the hardware platform environment on the software. Therefore, it is difficult to find software failures caused by hardware performance changes due to the influence of platform environment (temperature stress, humidity stress, vibration stress, electrical stress and other environmental factors). Carrying out reliability testing and software testing separately has the following disadvantages: [0003] (1) The reliability test results cannot truly reflect th...

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Problems solved by technology

[0003] (1) The reliability test results cannot truly reflect the reliability level of the system

[0004] ①Because the reliability test basically does not consider the assessment of the software, the faults found during the test are basically regarded as hardware faults

However, at present, the interface between devices is mainly realized through software protocols, which cannot be assessed through reliability tests.

[0006] (2) At present, software testing cannot give quantitative evaluation of software quality and reliability

This type of software testing focuses on quality compliance inspection, and does not verify the satisfaction of use requirements. The main verification is whether the software meets the general requirements of development and the requirements of software requirements for software functions and tactical indicators. It is an error-oriented test that can achieve Software reliability increases in a certain sense, but the data obtained from the test cannot be directly used for software reliability evaluation

[0008] (3) A separate test cannot assess software and hardware-related faults

Although some operations will be performed on routine software functions according to the test program during the test, the coverage of these operations on system functions is very low, which may lead to hardware that appears under certain environmental stresses but needs to be displayed through software operation Faults are missed and will ultimately affect the accuracy of reliability test results

When testing software alone, it is usually assumed that the hardware operating platform is ideal, and it is impossible to assess the influence of the characteristic changes caused by the hardware operating platform under environmental conditions on the software.

[0010] (4) A single test cannot comprehensively give a system reliability index

[0011] The equipment development requirements put forward system reliability indicators including software and hardware, but the reliability test data collected independently at present does not fully include software operation information, and the software test data does not fully consider the impact of the operating environment on the software. The above two aspects of information are combined for a comprehensive evaluation of reliability

[0012] To sum up, the traditional hardware test profile and software test profile use their own theories and technologies, so there is no strong connection between the two profiles, so they cannot be simply superimposed

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