军工产品嵌入式软件可靠性评测技术

Reliability Evaluation and Test of Embedded Software for Military Products

软件可靠性是衡量软件质量的重要指标之一,软件可靠性评测是获取软件可靠性定量指标的关键手段和方法,合理、有效地获取软件可靠性数据对评价软件质量具有重要意义。该文结合有关军工产品中嵌入式软件的开发过程,较为详尽地分析了软件可靠性评测的全过程,在"测试-排错-新版本"的迭代过程中采用软件负载压力测试方法和可靠性统计技术,跟踪故障强度的变化,并对软件失效数据进行采集与分析,从而达到软件可靠性评价的目的,最后,对软件测试与软件可靠性测试进行了比较分析,提出了各自测试的侧重点。通过对软件实行可靠性评测,可使软件产品在投入使用或装载在硬件产品之前就提高了其系统可靠性,使军工产品系统可靠性的提高有了更充分的保证和支持。

Software reliability is one of the important indexes to evaluate the quality of software. The evaluation and test is a key method to obtain the quantificational index of software reliability. To reasonably and effectively acquire the data of software reliability is of great significance to evaluate the quality of software. Based on the developing process of embedded software for some military products, the overall evaluation process of software reliability is analyzed. In the iterative course of ＂test-check-new edition＂, the test method of software load and press and the statistic technique of reliability are applied to track the change of fault intensity, and to gather and analyze the software fault data, and subsequently to evaluate software reliability. Finally, the soft- ware test and the software reliability test are contrasted to put forward the emphasis of each test. The evaluation and test of soft- ware reliability improve system reliability before the software product is applied or loaded into hardware, which provide sufficient guarantee to the reliability of military products.