Nancy Leveson, Sept 1999 Some decision factors Features of application Hard real time? Not just efficiency Predictability(need to guarantee deadlines will be met) High assurance? Portability? Maintainability? Others? Features of development environment Availability of programmers, compilers, development tools? Schedule constraints OthersCopyright Nancy Leveson, Sept. 1999 Some Decision Factors c Features of application: Hard real time? Not just efficiency Predictability (need to guarantee deadlines will be met) High assurance? Portability? Maintainability? Others? Features of development environment: Availability of programmers, compilers, development tools? Schedule constraints? Others? �