Categorization of real-time software components for code size estimation
Kenneth E. Lind, Rogardt Heldal · 2010
Background: To estimate Software Code Size early in the development process is important both for Cost/Effort estimation and electronic hardware design reasons. The COSMIC FSM (Functional Size Measurement) method treats the intended software to be measured as a black box, and measures CFP (COSMIC Function Points) based only on data movement in and out of the software. Therefore, CFP can be measured on requirements defined early, and be used to estimate Code Size if there exists a strong correlation between CFP and Code Size. We have conducted four experiments in the automotive industry showing strong correlation between CFP and implemented Code Size in Bytes. All four experiments, of which two have not been published before, show equally strong correlation but the linear relationship is different between the experiments.