Add the number of hours spent fixing bugs in the numerator to arrive at an actual metric for the maintainability of the system.
通过在分子中增加解决问题花费时间的方法可以获得系统可维护性的一个实际度量单位。
2
In particular, the goal of object system design is to partition the system state to meet the same goals of maintainability and extendibility faced in software design.
特别是，对象系统设计的目标是分割系统状态，从而达到软件设计中面临的同样的可维护性和可扩展性的目标。
3
By employing open architecture, the new system will allow future capability upgrades while improving reliability and maintainability that reduce overall cost.