Abstract: Development of information systems support for crisis management in local communities must be based on the needs of the crisis management actors as well as capabilities of information technology (IT). IT provides extensive possibilities, but is difficult to adapt to the users' needs. A profound exploration of the needs of systems for crisis management is often neglected. Hence, the management of major crisis has been held back because of the lack of useful tools. This paper presents an architecture for system for the local communities. The development of the architecture was based on a needs analysis, including interviews with crisis management at a local community level. The architecture is also based on novel design issues that have lead to the development of a conceptual model structure called the mission support model whose main concepts mainly include (1) user roles, (2) services and (3) views.