CADISON combines the engineering workflow in one system and thus significantly accelerates the planning processes. The common object-oriented data model for the different fields of application (tender planning, process engineering, installation planning, pipeline planning, electrical engi-neering, instrumentation etc.) makes it possible to integrate all planning phases so that time and costs are saved. CADISON serves to collect valuable information in the tendering phase already so that staff members have the required data available in all later phases of project handling.