A principles framework to inform defence SoSE methodologies

This paper is concerned with codifying the principles for successful system of systems engineering (SoSE) practice. The purpose of the codification is manifold but the initial focus is to support the design and utilization of system of systems engineering (SoSE) methodologies. The paper opens with a description of the problem context, defence capability engineering, and then moves on to describe an IDEF0 depiction of the inputs, controls and mechanisms needed to undertake a SoSE methodology design and utilization process; one of which is the set SoSE principles. Earlier work by the authors uncovered a substantial set of such principles and this paper concentrates on how to structure them to reduce the number needing consideration at any one time. The derivation of a three-layer framework designed to hold the principles follows. The framework comprises an articulation of the worldview which makes SoSE meaningful, the concepts that drive SoSE methodology design and use (descriptive heuristics) and implementation principles (prescriptive heuristics).The paper concludes with an outline of the content of the framework and suggestions for how it can be employed for its stated purpose.Jaci M. Pratt and Stephen C. Coo