ASIM (Arbeitsgemeinschaft Simulation) is the association for simulation in the German speaking area. Organisationally,  ASIM is a part of the GI - Gesellschaft für Informatik, the German Association for Informatics. ASIM is governed by an executive board consisting of elected members and of heads of Working Groups.

ASIM is organised in Working Groups:

• Methods in Modelling and Simulation
• Simulation in Environmental Sciences, Medicine and Biology
• Simulation of Technical Systems
• Simulation in Production and Logistics
• Simulation of Traffic Systems
• Simulation in Business Administration

ASIM is involved in the following international activities:

• Co-Sponsoring / co-organisation of the tri-annual EUROSIM Congress
• Co-organisation of the tri-annual conference series MATHMOD Vienna
• Co-Sponsoring of European SCS conferences
• Publication of the journal SNE - Simulation News Europe