Abstract
Worst-case execution time (WCET) analysis has become an active research area over the last decade. Various techniques have been developed to improve the WCET calculation methods for numerous features of the hardware. In parallel, attention has been paid to integrate the analysis techniques into modern software engineering processes. In this paper we give an overview about the different aspects of WCET analysis. We clarify terms and categorise features of WCET analysis tools. Therefore we present a generic framework for WCET analysis and describe its fundamental operations. We present a classification scheme to test the applicability of WCET analysis tools for certain analysis requirements.