CerTus-LdL allows the technician to identify from the simple company drawing the criticalities of the Workplace according to the specific production process. From the graphic representation of workplaces and processes and from the identification directly on the plan of risks, non-conformities and improvements, CerTus-LdL proceeds to the automatic and contextualised drafting of all the documents required by law, including the "D.V.R.", the "Improvement Programme", the "Emergency Management Plan" and the "D.U.V.R.I.".