Estimation of Real-Time Software Code Size using COSMIC FSM

Lind , K., Heldal, R.

For distributed networks which will be mass produced, such as computer systems in modern vehicles, it is crucial to find cost efficient hardware. A distributed network in a vehicle consists of several ECUs (Electronic Control Unit). In this paper we consider the amount of memory needed for these ECUs. They should contain enough memory to survive several software generations, without inducing unnecessary cost of too much memory. Our earlier work shows that UML Component Diagrams can be used to collect enough information for estimating memory size using a Functional Size Measurement method. This paper replicates our earlier experiment with more software components of a different type. We compare the results from the two experiments.


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