1 Adaptability and Mobility Mobile computing systems represent a specialised class of distributed computing systems where some nodes can move in physical and/or logical space, ad hoc connecting / disconnecting while remaining a component of a distributed system 1 and perhaps participating in global computational activities [11]. Such systems are highly flexible, dynamic and adapt to rapidly changing environmental constraints and conditions. We first briefly state what we mean by adaptability and mobility: ffl Mobility: Mobility has four aspects: mobility of users, hardware, software and data. ffl Adaptability: the capacity to (self) change the behaviour according to the environmental conditions. Mobility and adaptability are closely related: mobility leads to change in environmental conditions which calls for adaptation, and a means of adaptation might be to move.

We understand an enterprise to be a community of objects (human, software or combinations thereof) bound together by contracts (short or long term) for a specific purpose. We take the view of coalitions formed for peace-keeping operations as a distributed community with some mobile members. Interoperability, mobility, security, and adaptation will be critical issues for command and control information systems of such coalitions. In this paper, we first outline our capabilities/expertise including technologies, modelling formalisms, and experiences, and then relate them to adaptability and mobility issues which we argue could arise in command and control information systems for coalition peace-keeping operations. 1 Adaptability and Mobility Mobile computing systems represent a specialised class of distributed computing systems where some nodes can move in physical and/or logical space, ad hoc connecting/ disconnecting while remaining a component of a distributed system 1 and...