Previous techniques for visualizing time-series of multivariate data mostly plot the time along additional axes, are often complex, and does not support intuitive interaction. In this poster paper, we present an interactive visualization approach for the analysis of software metric trends that allows users to operate with Kiviat diagrams on 2D planes in the space and to intuitively extend this visual representation into 3D if needed. Categories and Subject Descriptors I.3.6 [Computer Graphics]: Methodology and Techniques--Interaction Techniques; D.2.8 [Software Engineering]: Metrics-complexity measures, performance measures General Terms Design