The document discusses how General Morphological Analysis (GMA) was used in the FORTRESS project to develop a conceptual model of cascading effects in crises. GMA involves mapping the parameters and their possible values that describe a problem space. Through three workshops with academics, industry, and end users, the FORTRESS project used GMA to identify 20 parameters related to cascading crises and refine them. This helped build a shared understanding among the multidisciplinary team and provided a model to inform subsequent project steps. While GMA facilitated collaboration, more time in the initial workshop could have improved efficiency.