基于运行场景模型的测试用例生成和排序方法

Test case generation and sorting method based on operation scenario model

大型民用飞机研制是一项多系统、多学科交联的复杂系统工程,民用飞机主制造商应在早期设计过程中进行需求的确认和验证工作,以找出设计中的缺陷,减少后续迭代设计成本,缩短设计周期,提高产品的竞争力。通过引入软件工程领域基于场景测试的方法,利用场景作为工具,以飞机在进近过程中触发TAWS模式1告警为实例,采用SysML活动图构建民机运行场景模型,基于场景模型生成测试用例,同时引入测试用例重要度对测试用例进行排序,用于指导后续的测试工作,为实现基于场景的需求确认和验证提供了支撑。

The development of large-scale civil aircraft is a complex system engineering of multi-system and multi-disciplinary cross-linking. The main manufacturer of civil aircraft should implement requirements validation and verify work in the early design process to find out the defects, reduce the cost of subsequent iterations of design, shorten the design cycle and improve the competitiveness of the product. In this paper, we introduce the scenario-based testing method in software engineering field by using scenario as a tool. Taking the aircraft triggering TAWS mode 1 warning during approach as an example, we used SysML activity diagram to construct the civil aircraft operation scenario model and generate test cases. Introduce the test case importance to rank the test cases for guiding the subsequent testing work, which can provide support for realizing the scenario-based requirement validation and verification.