如果在调度中使用滞后或延迟，则计算PV的方式之间的差异 [英] The difference between how PV is calculated if lag or delay is used in scheduling

问题描述

在计划任务时，可以添加前一个延迟（这对于在下一个任务（例如油漆干燥）之前必须经过的时间量有用，或者添加延迟（任务表单） \ ssdudule \ delay）。 延迟似乎对
在计划中为项目添加松弛很有用，因为它是在下一个任务之前可以通过的时间，但不一定非必要。

When scheduling tasks, it is possible to add lag from the predecessor (which is useful for an amount of time which must pass before the next task (paint drying, for example), or to add delay (task form\schedule\delay).  Delay seems to be useful for adding slack into your project in planning, as it is time that could pass before the next task, but doesn't necessarily have to.

首先 - 我的评估是否正确？

First - do I have this assessment correct?

第二 - MSP是否根据任务何时出现在计划中来计算PV，无论它们是否在那里到期滞后或延迟，或做延迟的任务假设他们会立即开始，没有延迟？

Second - does MSP calculate PV based upon when tasks appear in the schedule regardless of whether they are there due to lag or delay, or do tasks presented with delay assume that they will start straight away, without the delay?

一边 - 我一直在玩这个的原因是因为如果EV是使用物理％完成计算的，则MSP以前版本中的错误无法生成EV图表。这是否已在MSP 2013中修复？

An aside - the reason that I've been playing with this is because of a bug in the previous version of MSP where an EV graph could not be generated if EV was calculated using physical % complete.  Has this been fixed in MSP 2013?

感谢您的帮助！

推荐答案

首先，任务表单中的滞后（而不是延迟）将在前置任务/后继者表单中输入，而不是在计划表单中输入。时间表形式的延迟是指配的延迟，这意味着资源对指配的延迟。事实上，
不是必需的，只是给调度程序一个选项。

First, the lag (and not delay) in the task form is to be entered in the Predecessors/successors form and not the schedule form. The delay in the schedule form is the delay on an assignment, meaning the delay a resource has on a assignment. And indeed it is not required but just an option given to the scheduler.

PV（或
BCWS ）基于以下公式计算：
任务的时间分段基线成本，直至状态日期。延迟只是意味着任务将在项目的后期发生，因此PV将考虑滞后。

The PV (or BCWS) is calculated based on this formula: timephased baseline costs of the task up to the status date. The lag just implies that the task will occur later in the project, thus the PV will take into account the lag.

AS每个bug，我无法体验它，因此我'让你或其他人给出反馈。

AS per the bug, I couldn't experience it, thus I'll let you or others folks give a feedback on it.

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