Regarding the construction drawing, how to identify the legal responsibility of using someone else's electronic signature without the knowledge of the signatory and putting it in the column of the chief designer of the drawing? Hello, thank you for inviting me first. Whether to bear the responsibility depends on the consequences of the damage, whether there is an internal approval procedure, and whether there is a separate agreement on the use of the signature; If the responsibility is determined based on various circumstances, evidence is also needed to prove that the personal electronic signature is indeed used without authorization, not for personal use.