The world we live in is a complex system tinged with constant change. In order to cope with this fact, a defense mission system needs to adapt to these challenges. The command and control (C2) system is the component of the defense mission system that is our system of interest, our unit of analysis, in this paper. We present a first attempt to use a method based on design logic complemented with scenario driven exercises, to extract requirements and more fine-grained design criteria to enhance design of future C2 systems.

As a starting point, three scenarios were developed that intended to reflect key features of future potential conflicts. A number of subject matter experts (SMEs) participated representing strategic, operational and tactical levels of command. The SMEs were asked to state their C2 requirements in each of the scenarios. The resulting set of C2 requirements were analyzed to find design criteria pertaining to the general C2 functions (Data Providing, Orientation, Planning, Influence, and Communication) in Brehmer´s design-logic hierarchy (Purpose, Function and Form). The results indicate that the method can be usefull to find requirements and design criteria for future C2-systems.