Inevitably, as software projects, software products, and it environments all become more and more complex, so, too, does the task of estimating what they will cost and how long they will take.
由于软件项目、软件产品和IT环境不可避免地变得越来越复杂，因此评估项目的费用和项目的进度变得越来越难。
And while a teardown doesn't account for the costs of design, software, manufacturing, or shipping, these cost estimates help fill in the blanks toward estimating the profit on each device sold.
但拆解并没有计入设计，软件，生产和运输的成本。这样的开销估算填补了对每一台售出设备的利润估计的空白。
Most software engineering texts spend some amount of copy on project planning and estimating, including tools like the Constructive Cost Model (COCOMO).
大多数软件工程学课本都花费篇幅介绍项目计划和估计，包括类似Constructive Cost Model (COCOMO) 5这样的工具。
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