V2EX system boundary

System Boundary

定义 Definition

system boundary(系统边界):在系统分析、系统工程或科学建模中,用来界定“系统之内”与“系统之外”的概念性或物理性边界;它决定哪些要素、过程与相互作用被纳入研究范围,哪些被视为外部环境。该术语在环境评估(如生命周期评价 LCA)、热力学、管理学与复杂系统研究中很常见。(在其他语境中也可指组织/项目的范围界限。)

发音 Pronunciation (IPA)

/sstm band()ri/

例句 Examples

The system boundary includes the factory but not the delivery trucks.
系统边界包含工厂,但不包括送货卡车。

When we redraw the system boundary to include customer behavior, the model predicts very different outcomes, because feedback loops outside the original scope become visible.
当我们将系统边界重新划定,把顾客行为也纳入其中时,模型会预测出截然不同的结果,因为原先范围之外的反馈回路变得可见。

词源 Etymology

这是由 system(系统)+ boundary(边界)构成的组合术语。System 源自希腊语 systēma(“组合在一起的整体”);boundary 与古法语/中古英语中表示界限、分界”的词有关。作为固定搭配,“system boundary”在20世纪系统论、工程建模与环境评估等学科发展过程中逐渐普及,用来强调“范围划定”对结论的决定性影响。

相关词 Related Words

文学与著作 Literary Works

  • Thinking in Systems: A Primer(Donella H. Meadows)讨论系统思维时多次强调边界选择对理解系统行为的重要性。
  • The Fifth Discipline(Peter M. Senge)在学习型组织与系统思考的语境中谈到系统的界限与相互作用。
  • Systems Engineering and Analysis(Benjamin S. Blanchard 等)在系统工程方法中使用“system boundary”来界定系统与外部环境、接口与需求范围。
  • ISO 14040 / ISO 14044(生命周期评价标准)在LCA中系统边界是核心概念,用于规定评估所包含的过程与阶段。
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