Which is the amount of time an activity can be delayed from its early start without delaying the planned project finish date?

Leads, lags and float are concepts used in schedule development process. The process of schedule development includes: identification of all activities, sequencing all activities based on dependency, estimating duration of each activity and finalizing the schedule. Leads, lags and float are used as part of activity sequencing process. All activities once sequenced will form a schedule network diagram. Let us first look at the definition of all these three attributes.

Float

Float (also known as slack) is the amount of time by which the start of an activity can be delayed without delaying the project completion time. Every task will have following set of start and finish time. 

• Earliest start time (ES) - The earliest time, an activity can start once the previous dependent activities are over.
• Earliest finish time (EF) - This would be ES + activity duration.
• Latest finish time (LF) - The latest time an activity can finish without delaying the project.
• Latest start time (LS) - This would be LF - activity duration.

Float time of an activity can be calculated by taking the difference between Late Start (LS) and Early Start (ES) OR between Late Finish (LF) and Early Finish (EF).

Float = LS-ES  OR 

=LF-EF

A positive float time indicates the flexibility we will have in delaying the specific activity without delaying the project completion time.

Typically, while doing scheduling, the critical path tasks will have zero float and the non-critical path tasks will have a positive float. That means non-critical path tasks can be delayed to certain extent without compromising on the project completion time. Float time information of tasks is very useful to the project team for taking scheduling decisions when there will be resource constraints.

Lag:

Lag is the amount of wait time between two tasks. Or in other words, lag is the amount of time by which a successor activity will be delayed. Lag can be used in all the four logical relationships in scheduling, such as Finish-to-start (FS), start-to-start (SS), finish-to-finish (FS) and start-to-finish (SF).

In below example, Task A and B have a Finish to Start (FS) relationship. Ideally both A and B should get finished on the 12th day. But when we insert a waiting of time of 2 days before B can start, then both A and B will get completed only on the 14th day.

Lead:

Lead is the amount of time a successor task can be accelerated. Lead can applied only on finish-to-start relationship between two activities. We can see the below example. In the below example, task B can start 2 days before the completion of task A. Hence the start of task B, which ideally would have been on 6th day, will not start on 4th day.

Conclusion:

Float, lead and lag are very important concepts and information for the scheduling team. A PMP training course ensures you get a hold of these concepts. These are used to optimally identify the dependencies and the associated constraints. Float information is useful in resource allocation when there are resource constraints. Lead is used for accelerating start of tasks (fast tracking) for reducing project timelines. Lag is used for ensuring that required idle or wait time after a task is appropriately provisioned.

• What term is used for the amount of time an activity can be delayed?
• What is the name of the amount of time an activity may be delayed from its earliest start without delaying the finish of the project?
• Which of the following is the maximum amount of time an activity can be delayed from its early start without delaying the entire project?
• Is the amount of time an activity can be delayed without delaying the?
• Is the amount of time an activity can be delayed without delaying the project?
• What is the amount of time that a schedule activity can be delayed without delaying the early start of any successor activity or violating a schedule constraint?
• What is the amount of time an activity can be delayed without deleting a succeed in activity or project finish date?
• Is critical path the longest?
• Why is activity 2.2.3 delayed by 2 days?
• How are starting dates assigned to an activity?

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• What is the name of the amount of time an activity may be delayed from its earliest start without delaying the finish of the project?
• Which of the following is the maximum amount of time an activity can be delayed from its early start without delaying the entire project?
• Is the amount of time an activity can be delayed without delaying the?
• Is the amount of time an activity can be delayed without delaying the project?
• What is the amount of time that a schedule activity can be delayed without delaying the early start of any successor activity or violating a schedule constraint?
• What is the amount of time an activity can be delayed without deleting a succeed in activity or project finish date?
• Is critical path the longest?
• Why is activity 2.2.3 delayed by 2 days?
• How are starting dates assigned to an activity?
• Is the total amount of time that a schedule activity may be delayed from its early start date without delaying the project finish date?
• What is the amount of time an activity may be delayed before it delays the project end date?
• What is the amount of time that a task can be delayed?
• What do you call the amount of time that a scheduled activity can be delayed without delaying the early start of any immediately following activity?

Total float
The amount of time that an activity can be delayed from its early start without delaying the project finish date. Total float is a mathematical calculation and can change as the project progresses and changes are made to the project plan. Also called “float,” “slack,” and “path float.” See also free float.

What is the name of the amount of time an activity may be delayed from its earliest start without delaying the finish of the project?

Interfering Float is the amount of time a schedule activity can be delayed or extended from its early start date without delaying the project finish date. However, it should be understood that delaying an activity into interfering float will delay the start of one or more following non-critical activities.

Is the amount of time an activity can be delayed without impacting the early start date of its successor?

Free float: It is the amount of time that the activity completion time can be delayed without affecting the earliest start time of the immediate successor activities in the network.

Which of the following is the maximum amount of time an activity can be delayed from its early start without delaying the entire project?

Slack
Slack is the amount of time that an activity can be delayed past its earliest start or earliest finish without delaying the project. The critical path is the path through the project network in which none of the activities have slack, that is, the path for which ES=LS and EF=LF for all activities in the path. 4.

Is the amount of time an activity can be delayed without delaying the?

So, A float (or slack) in a critical path method (CPM) is the amount of time that a task can be delayed without causing any delay to Subsequent tasks and project completion date.

What term defines the amount of time an activity can be delayed and not delay the project?

The term total slack refers to the amount of time an activity can be delayed without delaying the start of a subsequent activity. The term Late Finish refers to the latest time an activity may begin without delaying the completion of the project.

Is the amount of time an activity can be delayed without delaying the project?

Total Float (TF) It is the amount of time by which an activity can be delayed without delaying the project duration.

What is the amount of time that a schedule activity can be delayed without delaying the early start of any successor activity or violating a schedule constraint?

Total Float is the amount of time a schedule activity can be delayed or extended from its early start date without delaying the project finish date or violating a schedule constraint. The Total Float (also referred to as just float or slack) of any activity on the Critical Path is usually 0 (zero).

What is the amount of time an activity can be delayed without delaying succeeding activity or project finish date?

A float (or slack) in a critical path method (CPM) is the amount of time that a task can be delayed without causing any delay to Subsequent tasks and project completion date. 2.

What is the amount of time an activity can be delayed without deleting a succeed in activity or project finish date?

Solution(By Examveda Team) Free Float is the amount of time that an activity can be delayed without delaying the early start date of any successor activity.

Is critical path the longest?

The critical path (or paths) is the longest path (in time) from Start to Finish; it indicates the minimum time necessary to complete the entire project.

How much can C be delayed without delaying the project?

Can activity C be delayed without delaying the entire project? If so, by how many weeks? Yes, C can be delayed by 2 weeks.

Why is activity 2.2.3 delayed by 2 days?

Observe that John is willing to work on weekends, but activity 2.2.3 is delayed by two days because one of the moving companies did not provide bids on the weekend. Observe that activity 2.3 has a lead time of one day, but that relationship is between activity 2.1 and 2.3.

How are starting dates assigned to an activity?

Starting dates can be assigned to each activity by doing a forward pass proceeding from left to right in the network diagram beginning with the project start date. The dates derived by this method are the early start (ES) dates. The early start date for an activity is the earliest date the activity can begin.

When to assign the calculated date to the late start date?

Assign the calculated date as the late start date of the predecessor activity. The difference between the early start date and the late start date for activities on the critical path is usually the same as the total float, unless the activities are affected by the resource calendars differently in the forward and backward pass.

Is the total amount of time that a schedule activity may be delayed from its early start date without delaying the project finish date?

There are 2 concepts need to be clarified. Float and Total Float. Float is the amount of time that an activity can be delayed from its early start without delaying the successor activity. Total Float is the amount of time that an activity can be delayed from its early start without delaying the project end date.

What is the amount of time an activity may be delayed before it delays the project end date?

Float, sometimes called slack, is the amount of time an activity, network path, or project can be delayed from the early start without changing the completion date of the project.

What is the amount of time that a task can be delayed?

A float (or slack) in a critical path method (CPM) is the amount of time that a task can be delayed without causing any delay to Subsequent tasks and project completion date. 2.

What do you call the amount of time that a scheduled activity can be delayed without delaying the early start of any immediately following activity?

Free float is an amount of time that a schedule activity can be delayed without delaying the early start of any immediately following schedule activities.

What is the amount of time that a task can be delayed?

What is the amount of time that a task can be delayed without affecting the subsequent task?

What is the minimum amount of time a dependent activity must be delayed to begin or end?

What term is used for the amount of time an activity can be delayed from its early start without delaying the planned project finish date quizlet?