Metalyzer is a extension to the IF-MAP visualization suite VisITMeta. It extends the VisITMeta dataservice to perform statistical methods and semantic(-like) queries on MAP graphs and visualize the results within a GUI. With the use of VisITMeta’s history of MAP data, time-variant analysis can be done. The software was developed during a tudents project at Hochschule Hannover Hannover University of Applied Sciences and Arts).