According to the features of operating system, this paper designs the architecture of interoperability testing shown in Fig. 62.2, which is based on black-box testing. The test system consists of one MTC (Main Test Component) and two PTCs (Parallel Test Component), and MTC is responsible for creating the PTCs and coordinating the test process among PTCs. Two PTCs are connected to two operating systems under test separately via respective adapter, whose purpose is to deliver test command and return execution results.