Merely all the error models previously identified can be applied for human error analysis. Common errors are the occurrence of an action of the actor not belonging to the planned interaction (error E.1), the execution of actions in a wrong order (E.2), and the omission of an action during an interaction (E.3). It is also possible to note human errors such as E.6, E.7 and E.8 consisting in furnishing bad **data** to the system. For instance, a user can type a letter whereas the system is waiting for a number (E.6), or he/she can tune a pressure valve too high for the system (E.8). The error E.4 is rather rare in human error analysis because it implies that the object for the interface is absent. The error E.5 depends on the time constraints a system can have, and is based on non functional requirements as for the error E.10. The error model E.9 which concerns response of a message (return values) is really useful for software or electronic components analysis. In case of the human component this is equal to E.6, E.7 and E.8, for message coming from the system.