A Method to Test Component Off-the-Shelf (COTS) Used in Safety Critical Systems

In this paper we discuss a method to test component off-the-shelf (COTS) using a hybrid approach based on software fault tree analysis and UML communication diagram. UML communication diagrams can be used to show message passing among components. It can also be used for integration testing. Software fault tree analysis is safely analysis techniques that can be used for modeling safety and dependability aspects of safety critical systems. A simple example is used to show the feasibility of our proposed method.