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。
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)。
Easier software updates and upgrades over vehicle lifetime.
在车辆生命周期中更容易地软件更新和升级。
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