Chapter 6 Software Engineering 6.1.1 The Cycle as a whole The software life cycle is shown in Figure 6-1. This figure represents the fact that once software is developed, it enters a cycle of being used and modified that continues for the rest of the software's life. Such a pattern is common for many manufactured products as well. The difference is that, in the case of other products, the modification phase is more accurately called a repair or maintenance phase because other products tend to move from being used to being modified as their parts become worn. 在图6-1中展示了软件的生命周期。这个图说明了一个事实:一且软件开发 完成,它就进入了使用和修改的循环,并且这个循环将在软件生命期的剩 余时间中不断进行。这样的模式对机器制造的产品而言也是很普通的。不 同之处在于,对于其他产品,软件工程中的修改阶段要被更精确地称作修 理或者维护阶段,因为其他产品由于部件的磨损会有从使用到修改的过程。 计算机专业英语 6-6Chapter 6 Software Engineering 计算机专业英语 6-6 6.1.1 The Cycle as a Whole The software life cycle is shown in Figure 6-1. This figure represents the fact that once software is developed, it enters a cycle of being used and modified that continues for the rest of the software's life. Such a pattern is common for many manufactured products as well. The difference is that, in the case of other products, the modification phase is more accurately called a repair or maintenance phase because other products tend to move from being used to being modified as their parts become worn. 在图6-1中展示了软件的生命周期。这个图说明了一个事实：一旦软件开发 完成，它就进入了使用和修改的循环，并且这个循环将在软件生命期的剩 余时间中不断进行。这样的模式对机器制造的产品而言也是很普通的。不 同之处在于，对于其他产品，软件工程中的修改阶段要被更精确地称作修 理或者维护阶段，因为其他产品由于部件的磨损会有从使用到修改的过程