The distributed, heterogeneous, and dynamic nature of the coalition context has raised the need for new advanced technologies. These technologies aim at managing the coalition informational infrastructure, in terms of autonomy, adaptability, and scalability. To achieve this support, Software Agents (SAs) gathered into MultiAgent Systems (MASs) seem to be a promising approach. To develop this approach, different aspects of a coalition have to be identified. These aspects include the coalition structure; the roles and responsibilities held by people within the coalition; the flow of information within the coalition; the capabilities required or available within the coalition; and the context in which the coalition operates. For many of these aspects, SAs can be used. For instance, the coalition structure can be associated with several SAs of different types and with different roles.