The visual preparation of information is one of many important topics in the field of computer science. If the existing literature is examined, it could be realized that there are reams of papers based at this topic. In this regard this diploma thesis spezialises in two types of visualisation: the advanced adjacency matrix and the node-link-graph. In the context of this thesis, the advantages and disadvantages of the respective visualisations for certain tasks are discussed in more detail. In addition it has been tried to identify various sense-making strategies of the users. The basis for this was a study from the Vienna University of Technology and the Middlesex University in England, which tested the interaction with the system and the sense-making strategies used by the users. In the context of the work, this study is described and in this regard, the use of both visual representations is discussed in more detail. The evaluation was carried out by using the qualitative content analysis, whereby the analysis steps where carried out by a set of categories. In the results, the participants were first charactersised and subsequently the individual categories were evaluated. In this connection it could bei detected that both representations have their advantages and disadvantages and that their respective practice depends on the nature of the problem. In addition, 10 sense-making-strategies were identified.