Measurement and tracing methods for timing analysis

Observing the timing properties of actual software provides information not derivable from pure modelling of the hardware, software and test data. Equally, modelling provides worst-case timing values that cannot be realistically determined from only testing and measurement. From this observation, we develop a combined methodology, where measured and modelled results are used in turn to build a complete, unified approach to software timing analysis. Beyond this, we develop toward a powerful and symbiotic process, where that data can be freely and reliably exchanged, and that is greater than the obvious sum of the parts.