Des Autom Embed Syst (2008) 12: 261–292 DOI 10.1007/s10617-008-9028-9 UML for electronic systems design: a comprehensive overview Yves Vanderperren · Wolfgang Mueller · Wim Dehaene Received: 28 August 2007 / Accepted: 17 July 2008 / Published online: 21 August 2008 © Springer Science+Business Media, LLC 2008 Abstract UML has been widely accepted by the software community for several years. As electronic systems design can no longer be seen as an isolated hardware design activity, UML becomes of significant interest as a unification language for systems description com- bining both HW and SW components. This article provides a comprehensive view of the UML applied to System-on-Chip (SoC) and hardware-related embedded systems design. The modeling concepts in the UML language are first introduced, including major diagrams for the representation of the behavior and the structure of systems. The principles behind application specific UML customizations (UML profiles) are summarized, and several ex- amples relevant for SoC design are given, such as the SysML (System Modeling Language) and the SoC Profile. Thereafter, various approaches associating UML with existing HW/SW design languages are presented. Beyond language aspects, the article addresses the question of UML-based design flows, and shows how UML can be applied concretely to the de- velopment of electronic-based systems. The current situation about tool support constitutes the last focus of the article. In particular, we show how UML tools can be combined with well-known simulation environments, such as MATLAB. Keywords UML · SysML · Model-based design · System specification · Modelling languages 1 Introduction Larger scale designs, increased mask and design costs, ‘first time right’ requirements and shorter product development cycles motivate the application of innovative ‘System on a Y. Vanderperren () · W. Dehaene Katholieke Universiteit Leuven (ESAT–MICAS), Leuven, Belgium e-mail: yves.vanderperren@esat.kuleuven.be W. Mueller Paderborn University (C-LAB), Paderborn, Germany