Partition cost function
Software characterization using ?, ?, P and B: static bound
- can be used to select appropriate partition of system functionality between hardware and software.
over estimation of processor and bus bandwidth is possible (since actual distribution of data communication is not captured above)
Include SH (hardware size ) bottom up.
- From the size estimates of the resources implementing operations
Characterize interface using set of communication ports (one per variable)
- overhead due to communication between hw and sw is manifested by the utilization of bus bandwidth.