Abstract

Making decisions about the goals and architectures of complex socio-technical sys-tems at the beginning of the engineering process is an important but difficult task. In par-ticular systems engineers lack the guidance and knowledge about future system usage to make well-founded decisions about which architecture to select and which goals to sat-isfy. This paper presents GOMOSCE, a research prototype process and software tool that has been developed to underpin such decision-making. GOMOSCE integrates two strands of mature academic research - i* system and goal modelling with systematic scenario generation and walkthroughs with ART-SCENE, to guide system modelling with an em-phasis on actor dependency and goal contribution modelling. The process has been ap-plied to a component of the UK’s network-enabled capabilities (NEC) for UK Defence. Existing software tools were extended to support the GOMOSCE process. Results and feedback from this prototype project are presented in order to direct future research.