The goal of this dissertation is to develop a web application that explores different analysis of UML diagrams. One of the main features of this tool is the compatibility with other tools that create UML diagrms. In order to do that, we implemented a generic XMI parser that import class diagrams and provides as result a directed graph. With this graph in hand, we conducted studies that provide extra information regrading this diagram. The first study is the identification of the classes that can be considered core concepts (defining the important classes of the system). The other study permorms graph clustering, aiming to create groups pf classes, making it possible to generate components. Finally, we discuss estimates of importance and degree of cohesion, as well as size and coupling metrics of the diagram as a whole and the generated components.