范围基线包括工作分解结构（WBS），，，，范围声明，，，，andWBS词典。它是三个性能测量基线之一。其他两个基线是日程安排和成本基线。
The scope is the most important project parameter because you must complete the scope of work to successfully finish and deliver the project.
This blog post will discuss the scope baseline, its components, and its importance in project management.
Let’s get started.
Scope Baseline
范围基线不是一个文件；它是三个文档的集合：范围语句，工作故障结构和WBS词典。
范围基线是一个受控文档，针对此蓝图测量了项目的状态和进度。
范围基线的组件
以下是示波器基线的三个组成部分：
- 范围声明
- Work Breakdown Structure
- WBS词典
范围声明
范围语句是定义完整工作范围的文档。它提供有关项目可交付成果，目标，assumptions and constraints，包容，排除等。
Work Breakdown Structure
工作分解结构是将所有项目工作或可交付成果分为较小且易于管理的任务的层次分解。通常，WBS具有两到三个级别的细节，最低级别的元素称为工作包。
Sometimes, work packages are preceded by planning packages, and control accounts precede planning packages.
WBS词典
The WBS Dictionary is an integral part of WBS; in fact, the WBS is incomplete without the WBS Dictionary. Being graphical, WBS does not show element details; therefore, the WBS Dictionary lists all the WBS element details.
范围基线的使用
范围基线定义已批准的可交付成果，工作范围,同意d-upon goal(s). It is the foundation of project progress, helping you determine your daily work based on it.
A scope baseline helps you:
- 在利益相关者之间提供共同协议，
- 推进项目,没有麻烦,
- provide a basis for monitoring and controlling the work,
- avoid scope creep and gold plating.
A scope baseline is an approved document containing stakeholders’ requirements and expectations. The scope baseline is the document you will consult to get back on track in case of any deviation. It is a good communication tool to let team members be aware of their job responsibilities.
由于您在您和您的团队成员面前定义了所有任务，因此每个人都知道他们应该做什么。责任不会含糊不清，您可以毫无麻烦地完成工作。
范围基线是一份批准的文件，可帮助您衡量项目的状态和进步，以明确的目标。如果您想更改范围，则需要提出更改请求并获得新的范围基线批准。
Since all changes are controlled, there will be less chance of范围蠕变，这是范围不受控制的变化。同样，由于定义了示波器基线，因此减少了黄金电镀（添加未补偿的附加功能）的机会，并且该进度始终与范围基线相匹配。
如何发展范围基线
项目经理与项目管理团队一起开发范围基线。
The scope baseline is created while developing the Work Breakdown Structure and consists of the project scope statement, the WBS, and the WBS Dictionary.
范围声明包括对工作范围，项目可交付成果，假设，约束，milestones，，，，project inclusions, project exclusions, etc.
对于开发范围声明，您将审查合同文件，浏览要求文件，然后撰写范围声明。
A WBS is a visual, hierarchical breakdown of a project into smaller components or tasks.
这是项目计划的重要基础，并帮助管理人员确定项目组件，以便他们确定项目成本并制定时间表。它集成了项目范围，时间表和成本基线，并确保项目计划保持一致。
A WBS structure is developed after you complete the scope statement. It validates the scope statement and helps refine it throughout the entire process.
工作分解结构（WBS）可以具有两个到三个级别的细节；但是，复杂的项目可以根据需要具有更高的水平。
根据《 PMBOK指南bob手机客户端》，WBS词典是“一份文档，可提供有关工作崩溃结构中每个组件的详细可交付，活动和调度信息。”
The Dictionary lays out each element of WBS, including deliverables, scope, duration, milestones, starts, and end dates, required resources, costs, quality, assigned team members, etc.
You will develop the WBS Dictionary during or after creating the WBS. The Dictionary reinforces the WBS and provides clarity for team members in understanding the WBS.
Conclusion
Scope baseline is the approved version of the scope statement, WBS, and WBS dictionary. To make changes in this document, you need to go through a formal change management system.
开发范围基线是成功完成项目的第一步。范围基线定义了工作范围，帮助构建项目时间表，并提供有关里程碑，假设，约束等的信息。
It is one of theperformance measurement baselinesthat helps you keep your project on track.
我希望这篇文章能阐明您对最重要的范围基线的理解，我想了解更多有关您在范围基线的经历的信息。请通过评论部分分享您的经验。
从PMP考试的角度来看，此主题很重要。
