\input zb-basic \input zb-ioport \iteman{io-port 70357081} \itemau{White, Stephanie Farbman} \itemti{System-level issues and approaches in software development} \itemso{COMPSAC, 813-822 (2002).} \itemcc{} \itemut{} \itemli{http://doi.ieeecomputersociety.org/10.1109/CMPSAC.2002.1045105} \end