系统集成成本?
在您从事的软件开发项目中,系统集成的大约成本(以占系统总成本的百分比表示)是多少?系统集成包括与其他软件、数据库等的集成。
On the software development projects that you have worked on, what has been the approximate cost (expressed as a percentage of total system cost) of system integration? System integration includes integrating with other software, databases, etc.
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33.3%,因为系统集成通常与相当大的风险相关,而这些风险在项目的其他阶段(编码、文档等)中并不常见。
33.3% because system integration is usually associated with a fair amount of risk that is not as prevalent in other phases of the projects (coding, documentation, etc).
这是一个非常难以估计的值,尤其是当您面临与不熟悉的系统集成时。您能做的最好的事情就是跟踪您或您的团队过去在类似项目中的表现,并使用这些值来尝试估计您在新项目中的表现。
一般来说,如果出现以下情况,系统集成将花费更长的时间:
This is a very difficult value to estimate, especially when you are facing integrating with a system that you are not familiar with. The best you can do is track you or your team's past performance on similar projects and use those values to try to estimate how you will perform on new projects.
Generally, system integration will take longer if:
0 到 99% 之间。我构建了根本没有集成的系统以及基本上只是其他系统集成的系统。集成的好处在于它很容易估计。但只有当界面被完全理解时。那么它只是功能的重复。
不过,还有一些复杂的因素。它们可能会使它变得非常昂贵甚至不可能:
Between 0 and 99%. I have built systems with no integration at all and systems that were basically just integration of other systems. The nice thing about integration can be that it is easy to estimate. But only when the interface is fully understood. Then it is just a duplication of functionality.
There are some complicating factors, though. They can make it very expensive to impossible:
这取决于集成系统的重要性和其他因素。
我所使用的系统集成了许多 Web 服务,这些 Web 服务是应用程序的核心。如果网络服务瘫痪,我们的系统就毫无用处。
在尝试评估成本时,我会列出以下变量:
在这些情况下,员工的小时工资是多少?他们需要在这些集成系统上工作多少小时?你的项目有多少钱?如果不知道这些细节,特别是最后一个细节,我不能说你的案例会花费 X%。
It depends on the integrated system's importance and other factors.
I've worked in systems with integration in a bunch of web services that were the application's core. If the web services were down, our system was simply useless.
I would list the following variables when trying to evaluate the cost:
How much is an employee's hour rate in these scenarios? How many hours they would need to work on these integrated systems? How much money do you have for your project? I can't say it's going to cost X% on your case without knowing these details, specially the last one.