Information Systems (IS) are primary enablers in instigating organisational change, increasing organisational responsiveness and decreasing supply chain overheads. This paper aims to contribute through exploring and visualising Knowledge Mapping (KM) from the perspective of Information Systems Investment Evaluation (ISIE). Complexity of IS evaluation process increases with the increase in intricacy of IS. A number of interrelating factors (e.g. costs, benefits and risks) contribute towards the intricacy of IS evaluation. There seems to be a growing need to evaluate the IS investment decisionmaking processes, to better understand the often far reaching repercussions related with IS implementation and interconnected Knowledge Components (KC). In seeking to edify the often vague IS evaluation process, this paper attempts to, emphasise the increase of knowledge and learning through the application of a Fuzzy Cognitive Mapping (FCM) technique. The resulting FCM determines the intricate and developing behaviour of causal relationships within the KM area.