Reproducibility and representativity: mandatory properties for the compositionality of measurement-based WCET estimation approaches

The increased number of systems consisting of multiple interacting components imposes the evolution of timing analyses towards methods able to estimate the timing behavior of an entire system by aggregating timings bounds of its components. In this paper we propose the first discussion on the properties required by measurement-based timing analyses to ensure such compositionality. We identify the properties of reproducibility and representativity as necessary conditions to ensure the convergence of any measurement protocol allowing a compositional measurement-based timing analysis.