US Patent 7904843 Systematic generation of scenarios from specification sheet

A method of generating a scenario includes generating a specification model by describing a specification in a predetermined descriptive language, extracting a plurality of operations from the specification model, generating a plurality of operation descriptions, each of which corresponds to one of the operations and includes an operation name and a constraint condition, generating at least one cause-effect graph that combines the operations based on the operation descriptions, and extracting as a scenario a series of operations from the cause-effect graph.