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Mr.Right

不顾一切的去想,于是我们有了梦想。脚踏实地的去做,于是梦想成了现实。

 
 
 

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人生一年又一年,只要每年都有所积累,有所成长,都有那么一次自己认为满意的花开时刻就好。即使一时不顺,也要敞开胸怀。生命的荣枯并不是简单的重复,一时的得失不是成败的尺度。花开不是荣耀,而是一个美丽的结束,花谢也不是耻辱,而是一个低调的开始。

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Project 基线建立与比较  

2017-08-13 23:42:54|  分类: 学习 |  标签: |举报 |字号 订阅

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A well-managed project often involves comparing a project to earlier version of it. This is a critical part of tracking your project.

Before you start tracking your schedule, however, you need to set a baseline so that you can compare it with your up-to-date schedule later in the project. As your project progresses, you may also want to save an interim plan periodically.


Baseline plans and interim are similar in that they you compare current dates against an early date. But they have important differences that you want to get straight.

Baselines

A baseline is a group of nearly 20 primary reference points (in five categories: start dates, finish dates, durations, work, and cost estimates) that you can set to record the original project plan when that plan is completed and refined. As the project progresses, you can set additional baselines (to a total of 11 for each project) to help measure changes in the plan. For example, if your project has several phases, you can save a separate baseline at the end of each phase, to compare planned values against actual data.

Because the baseline provides the reference points against which you compare actual project progress, the baseline should include your best estimates for task duration, start and finish dates, costs, and other project variables that you want to monitor. The baseline may also represent a contractual obligation for the project. Baseline information that consistently differs from current data may indicate that your original plan is no longer accurate, possibly because the scope needs review or because the nature of the project has changed. If project stakeholders agree that the difference warrants it, you can modify or rework the baseline at any time during the project. You may find that setting multiple baselines is especially useful for long projects or for projects in which the baseline is rendered irrelevant by significant changes to scheduled tasks or costs.

Interim plans

An interim plan, on the other hand, is a set of current project data that you save after the project begins and that you can compare against the baseline to assess project progress. An interim plan saves only two kinds of information:

  • Current start dates

  • Current finish dates

You can set up to 10 interim plans for a project. If you need to keep records of extensive project data during the planning phase, it is a good idea to set multiple baselines instead of using interim plans. For example, you may want to set a baseline at each major planning milestone. Then, if you need to save only task start dates and finish dates after the project begins, you can set multiple interim plans. For example, you may want to set an interim plan on a monthly or quarterly basis.


Project 基线建立与比较 - 阿英 - Mr.Right

 

进度计划指定完成,并经过审核确认之后,要把当前的计划保存为一个快照或者副本。有何作用呢? 在项目执行期间,项目计划肯定会有变更,就是通过这个快照或者副本来查看变更。

Project最多支持保存11个快照或者副本,Project中这个名字叫做“基线”。在Project中,点击“项目-日程-设置基线”可以保存基线,基线的本质就是比较基准。 基线在后期项目的变更和监控中,作用至关重要。


Analyze baseline and interim data

After you set baseline or interim data, you can compare it with the scheduled and actual data to see how your project is tracking against your initial goals.

View project baseline information

After you set a baseline for the entire project, you can view the baseline data side-by-side with the current planned data, the actual data, and the variance.

  1. On the Project tab, in the Properties group, click Project Information.

Project 基线建立与比较 - 阿英 - Mr.Right
 

Compare baseline and scheduled information

You can compare baseline and scheduled information in either of two ways:

  • To view variance information in a sheet view, click the View tab. In the Data group, click Tables, and thenVariance.

  • To view variance information graphically, click the View tab. In the Task Views group, click Gantt Chart, and then click Tracking Gantt.

The Variance table shows start and finish dates for both scheduled information and baseline information, making it possible to evaluate your prediction of how the project would progress (baseline) by comparing that prediction with how the project is in fact progressing (actual).

Project 基线建立与比较 - 阿英 - Mr.Right
 

 上层是实际的计划,下层是之前保存的比较基准。通过这里比较,就可以看到,当前实际的计划和之前保存的基准有什么差异。
 

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