Message sequence generation method and the message sequence generation unit

The present invention aims at providing a message sequence obtained by adding the error processing that efficiently be generated, message sequence generation method and message sequence generator. Message sequence generation method of the present invention includes the steps of (a) preparing a message sequence information 31, a step of preparing a (b) phenomenon causal relationship model 33, for a particular event (c) phenomenon causal relationship model, and setting an action, and each element in in (d) of a message sequence information, and generating an element-phenomenon correspondence information associated with each event, the storage device 3 (e) component, phenomenon correspondence information a step of storing, from (f) element - phenomenon correspondence information, obtains the action set to events occurring due to the event and the event corresponding to each element, the step of adding to the elements as an error process with the door, to execute the steps by a data processing by a computer.