Task: Check timing quality [Optional]
Disciplines: Exchange timing models
Relationships
Main Description

In case that all functionally motivated timing requirements, i.e. the timing requirements communicated by the suppliers of the sub-systems, are satisfied, the OEM might be interested in further evaluating and optimizing the system’s real-time behaviour.

In particular, the OEM might be interested to ensure the extensibility of his system for future functionalities and so-called face-lifts. For this purpose it is crucial to reserve slack in the system, since hardware platforms usually remain static over several years (7-8 years).

One possible metrics for evaluating the system’s extensibility is the load on the network and the ECUs.  More sophisticated metrics are based on sensitivity analysis [1]techniques.



[1] Arne Hamann, Razvan Racu, Rolf Ernst: Multi-dimensional Robustness Optimization in Heterogeneous Distributed Embedded Systems. IEEE Real-Time and Embedded Technology and Applications Symposium 2007.