This article gives a brief introduction to structure analysis using STAN, a static code analysis tool bringing together Java development and quality assurance in a natural way. STAN encourages developers and project managers in visualizing their design, understanding code, measuring quality and reporting design fl aws. STAN supports a set of carefully selected metrics, suitable to cover the most important Aspects of structural quality. Special focus has been set on visual dependency analysis, a key to structure analysis. STAN seamlessly integrates into the development process. That way, developers take care about design quality right from the start. Project managers use STAN as a monitoring and reporting tool.