The filters are actually open source program code written in LISP, one of the first programming languages ever created.

过滤器实际上是使用LISP编写的一种开源程序代码，LISP是最先创建的编程语言之一。

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For the development organization, code churn — the frequency of changes in program source code — would be an operational measure.

对于开发组织来说，代码搅动——程序员代码中变更的频率——是可运作的度量。

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Things that might change, such as a product name, make particularly good entities, much like declaring constants in program source code.

可能变化的事物（比如产品名称）非常适合使用实体，这与在程序源代码中声明常量很相似。

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On one system, 74 user accounts had privileges enabling them to change program source code without supervisory oversight, the report stated.

CNN: Extensive security gaps persist in DOD networks

But they are refusing to allow independent analysis of the program's source code, on the grounds of commercial confidentiality.

BBC: Why e-voting is a non-starter

If the borrowed open-source code is integral to a larger program, that program becomes a "derivative work, " subject to various claims--e.g.

FORBES: Magazine Article