Most of the time, good software engineering techniques ensure that this happens automatically, without us having to expend a lot of attention on the issue of object lifetime.
在大多数时候，好的软件工程技术保证这是自动实现的，不用我们对对象生命周期问题花费过多心思。
2
Formal documentation of system semantics (through modeling) will increase software quality and extend the useful lifetime of designs (thereby increasing ROI).
系统语义的正式文档(通过建模)将提高软件质量，延长设计的有效生命周期(从而提高roi)。
3
Easier software updates and upgrades over vehicle lifetime.