This objective is defined as the desired (intended) situation, in contrast, a threat which may challenge goal achievement may lead to an undesired situation. In this case, to maintain the temperature at 20°C is our desirable situation or our objective. If the temperature falls below 20°C, a threat may have disturbed the system. Such a… read more »


Definition: A threat represents an undesirable state which should be destroyed or suppressed.


MFM distinguishes between system goals in two different categories based on the nature of the concepts. One is to achieve a certain state, while the other is to avoid an undesirable state. These two can be expressed by using only one concept of goal with different logical expressions. However, the differentiation between the two concepts is… read more »