The derivation of conformance tests from LOTOS specifications

The derivation of conformance tests for communication protocols is discussed. Protocol specifications are considered in the formal description technique LOTOS, which has been developed by the International Standards Organization. Test processes which preserve the structure of the protocol specifications are constructed. Laws are presented for handling basic LOTOS operators. The test processes obtained by applying these laws are related to the theoretical notion of canonical testers. The conversion of the test processes into finite test suites is discussed. Their relationship to current practice in test suite design is discussed.<>