Program comprehension: A method of generating visualized UML class diagram

Program comprehension is an important research content of software engineering. This paper presents a Program comprehension visualization method of using UML class diagram. This method has two parts, first, The program source code is abstracted into database table, the form used to summarize and express program structure and key information, Then, the table was transformed into UML class diagrams, The class diagram can be effective to help understanding program structure and other key information.