The Project Management Glossary defines it as: “A technique that makes use of float when allocating resources so as not to affect total project duration. Assemble and add construction site. Total float refers to how long tasks can be delayed from the earliest start date without impacting the project completion date. ” How to calculate float in project management. Place standalone items around. This paper presents the concept of GPM forensic total float and its role in retrospective schedule analysis, whether in updating or forensic analysis. Using "float" in strategic plans allows management to more effectively regulate how the length of activities affects the completion of the works. In project management, float is used to denote the extra time that a project task, a branch of project tasks, or the entire project can be extended by. Total float is how long an activity can be delayed without putting off the project completion date. Uses bar charts instead of logic diagrams to portray the schedule. Total Float is the maximum amount of time an activity can be delayed without delaying the project whereas Free Float is the amount of time an activity can be delayed without impacting the Early Start date of any of its immediate successors. Tasks on the critical path will have a float of zero, meaning there are no delays in the sequence. In the context of project management, the term “free float” is used to describe amount of time that spans from the completion of one previously scheduled activity and extends to the point at which the next scheduled activity is set to begin. Activity F has the most, with nine days of float: It can finish up to nine days later than its early finish date and not cause. Preparation for the PMP® certification exam should be inclusive of all earned. Negative float occurs in Primavera P6 when the total float is less than Zero, which means that the critical activities in the original plan (activity with zero total floats) are being delayed and the original project completion date is delayed. EAC = AC + ETC. How to Create the Critical Chain Network Diagram. In project management, float is a term that refers to the number of days that an activity can be delayed before affecting the next activity in the schedule or the project as a whole. Perception and Using Total Float. Free Float = ES2 – EF1 Free Float identifies the window of opportunity during which a task can be rescheduled without causing a ripple effect on subsequent tasks or the project timeline. If you use level of effort or WBS summary activities in your schedule always make sure that the schedule calculates “Total Float” as “Finish Float=Late Finish-Early Finish”. But that diagram does not show the. Negative Total Float. - pasture/watercourse management . In fact, there are two distinct types of float that project managers use to manage task timelines: total float and free float . 5% = 47. Formulas for calculating Total Float and Free Float are as follows: Total Float = LS – ES (it is also calculated by LF – EF)Free Float = Lowest. Inappropriate Level of Detail. It is based on identifying the critical path of a project and analyzing it to find the minimum completion time for the. Check out for more free engineering tutorials and math lessons!Project Management Tutorial: Determine Total Float & Free Float (. Once we have the early start and finish times we can get the late start and late finish times via the backward pass. Online. Also watch the video on How to Answer Contract Type Questions for PMP exam. In fast-tracking, you review the critical path and list all vital activities. c. Total float means how long we can delay an activity without taking off the completion date of the project. Rita Mulcahy's PMP Exam Prep: Rita's Course in a Book for Pearson vue trick card declined 2020Store | Project Management InstitutePoint of total assumption - Wikipedia2021 PMP Cost - The Complete GuideGestión de proyectos. If yes, then “free float” is your answer. It brings many benefits, from helping you never miss a deadline to keeping your team focused on what needs to be done. Here's an example to illustrate the difference between Total Float and Free Float: Suppose you have a project with three tasks: A, B, and. iv) Wall framing – 4 days. A concept related to, and crucial for using the Critical Path Method is float or slack. Exhibit 5. However, non-crucial tasks may have some float, allowing for some flexibility in scheduling. The MS Project®version u. It is used to determine the critical path, as well as the float of each task. Any float that Activity C uses isn’t available for Activity E. PMP Practice Exam 1. This paper presents the concept of GPM forensic total float and its role in retrospective schedule analysis, whether in updating or forensic analysis. For that reason, total float, activity sequences and logic of the network diagram effect the required resource quantities per time. Project Selection Methods 5. 1- Free Float. Free Float is the amount of time an activity can be delayed without delaying the successor activity. It calculates expected duration by finding the weighted average of three different estimates viz. Activities for this project are as below (output from Define Activities process) –. In strategic planning, there are primarily three kinds of float zero float, total float, and free float. v) Roof framing – 6 days. . " See also free float. Total float is calculated by subtracting the early start date of a task from its late start date. Total Float is the maximum amount of time an activity can be delayed without delaying the project whereas Free Float is the amount of time an activity can be delayed without impacting the Early Start date of any of its immediate successors. The total float will be zero on the critical path. Thus, independent float can be calculated as under: Independent Float = Total. For example the total float for Task A = LS - ES = 4 - 1 = 3 days. Steps to Developing a Precedence Diagram. Then you must follow these three additional steps to develop a critical chain network diagram:There are two types of float in project management: free float and total float. In this case total float of activity E and F are 8. Here’s a breakdown of the two types of float: Total float: This is the amount of time that an activity can be delayed from the early start date without delaying the project finish date or violating a schedule constraint. Pessimistic, Optimistic and Most likely estimates. Step 6: Calculate the float. But as soon as you start updating actual progress, the work will force the. Tinox1 • 2 yr. Float = LS - ES. In this case, the critical path is the creation of the press release:In project management, the network diagram is a graphical depiction of a project schedule which uses boxes to represent each task. Project Management Institute. , critical path, total float, and free float. It is the total amount of time any task can be delayed without impacting the delivery date of the project. Total float is the amount of time a task or a project can be delayed without impacting the overall project completion time. There is no extra time to spare on these tasks, and if one is delayed, then the project is delayed too. The sequence of critical activities in. Optional Techniques ; Where appropriate, describes one or more alternative approaches that a program team might use, considering degree of difficulty,Resource smoothing is a technique used in project management to optimize resource allocation without extending project duration. In the given example below the total float for activity 3 is 5 and the free float is also 5(ES of activity 5-EF of activity 3). Resource smoothing. e. Total float is the total amount of time that a schedule activity may be delayed from its early start date without delaying the project finish date, or intermediary milestone. Resource Smoothing is performed to achieve a more uniform resource utilization over a period of time. 1- Free Float. Calculation: (Late finish date) – (early finish date) or (Late start date) - (early start date). pick two (pick any two): Pick two, sometimes expressed as pick any two, is the principle that in many sets of three desirable qualities, those qualities will be somewhat mutually exclusive. 34% on either side of the mean. Since it is not on the PMP critical path, delay on this activity can be compensated. See the below example, for the same activities but with a negative float. It is the path with the greatest total. Float là gì và cách tính Float trong kỳ thi PMP. + 3 σ. Total float, a fundamental concept in project management, plays a crucial role in evaluating the flexibility of tasks within a project timeline. We discuss three types of Floats in this video viz Total Float, Free Float and Independent Float with examples. The former is called “free float”, and the latter is called “total float”. As described above, the term ‘negative float’ has different meaning to different people even within the project management community. This paper presents the concept of GPM forensic total float and its role in retrospective schedule analysis, whether in updating or forensic analysis. Total Float and Free Float are. Also we have learned that the total float of the activities on the critical path is always equals to ZERO, by. To calculate the float, you need to have the earliest and latest start and finish times of each activity, which you can obtain from the critical path analysis. To adjust slack and float for changes, identify the source and scope of the change, evaluate the options and alternatives, select the best option and implement it, and monitor and control the. No one likes to do it, but often it’s necessary and worth it in the end. Total Float, Lead time and Lag time. A float will always have a zero value on the critical path. Critical Path: The tasks which define the completion date of the project. Total Float, Lead time and Lag time. Anything can happen during the course of working on an extended task. So let's answer these questions by defining the two types of float that you may find in your project schedule network diagram. Step 3 – Perform the Backward Pass. Total Float and Free Float are used in Critical Path Method (CPM) to…Discretionary dependencies should be fully documented since they can create arbitrary total float values and can limit later scheduling options. Activity 2 is on the critical path so it will have a float of zero. Total float of an activity = (LF - EF) of that activity OR (LS-ES) of that activity Unless specifically asked for free float in questions consider float=total float. It can be calculated by subtracting the activity’s Early Start date from the Late Start date. Using a CPM/PERT network enables project managers to analyze a project schedule so as to understand the impact of possible changes, so as to understand what will happen or what may happen. The ability to determine total floats and the critical path for the as-built portion of a schedule (left of the data date) is solved by the graphical path method (GPM). Those in project management must be aware of the total float time they have available to them at the beginning of the project. Free Float : The amount of time that a schedule activity can be delayed without delaying the early start date of any immediately following schedule activities. Similarly, for activity H the total float is 12 weeks; you could delay activity H by 12 weeks without pushing the end date of the project. The forward pass calculates each activity’s early start and early finish date. Uses free float instead of total float in the schedule calculations. Chúng ta cần phải xác định được những khoảng thời gian linh hoạt về tiến độ khi lập kế hoạch dự. We can identify two float types: free float and total float. Solution. Which activities have path (total) float available: _____ 2. Total float is a mathematical calculation and can change as the project progresses and changes are made to the project plan. Free Float: Float The amount of time that a schedule activity can be delayed without delaying the early start date of any immediately following schedule activities. To create a critical chain network diagram, first, create a critical path network diagram. free Float - PM PrepCast ForumTotal Float, and; Point Of Total Assumption; Tips to Memorize PMP Formulas. This post will outline how to enable the Total Slack, Free Slack and Negative Total Slack in MS Project. 3- Be sure that your critical path is realistic and most likely present the situation on-site. Scroll down until you see the ‘Neg Float Bar’, and highlight it. A typical project has many tasks involving lots of different people so project managers have a hard time keeping track of things. . The result is the total float for that task. -- 2nd ed. It is the flexibility or buffer time available within an activity. This will have no impact on the project duration. Positive Float. Mr. The different Types of float are Free Float, Total Float, Project Float, Interfering Float, Independent Float. It is the total amount of time any task can be delayed without impacting the delivery date of the project. If any activity on the critical path is delayed, the completion of the project will be delayed by an equal amount. While there are many ways in which one may memorize and retain PMP formulae, some of the most popular methods are using Flash Cards, manually writing them down and/or using various apps available on smartphones across the market. Place standalone items around. 7 D A C F B E 9 10 4 6 14 11 9. 7 D A C F B E 9 10 4 6 14 11 9 13 G H For E Total Float: Critical path duration – Longest path of E = 38 – 19 = 19 wks Free Float: 16,17,18,19 = 4 wks Project Management Professionals Hot Topics & Challenges - Time Management Nov 3, 2023. See moreWithin project management, there are different types of float: free float, total float, and project float. Free Float = ES of successor activity – EF. Activities on the critical path have ZERO float. Free Float (FF) = the maximum amount of time an activity can. I learned about Critical Path while using MS Project. Join winding tracks. Zero float in project management is when there is no time between activities, tasks. Identify the latest day you can complete each project task if you want to stay on track to meet predefined. The critical path has zero or negative Total Float. Trong quá trình thực hiện dự án, luôn có những thay đổi xuất hiện và ảnh hưởng tới dự án, đặc biệt là tới tiến độ. The critical path method (CPM) is widely used as a project management tool. Basically, TF and FF are two critical path method terms. Total float is a property assigned to each task or milestone in the schedule. - Total Float và Free Float của một hoạt động có thể giống hoặc khác nhau, tùy thuộc vào những hoạt động khác trên sơ đồ tiến độ. To be precise, the term refers to a property assigned to each task or milestone in the schedule called Total Float, or Total Slack in Microsoft Project. In other words, it’s the flexibility that exists within the project schedule. Total Float: The amount that a task can move without affecting the final project completion date. Calculation: (Late finish date) – (early finish date) or (Late start date) - (early start date). Duration estimation can also accompany the creation of an activity network. Step 1: Obtain the project data. then hit F9 6 – Using Resources dependent activity. 68. Lưu ý: - Những hoạt động nằm trên Đường Tới hạn có Free Float = Total Float = 0. Total Float: Total float is what many of us are aware of, and is commonly referred to as a float. Float = Slack, and Slack = Float. Float/Slack. Attendance,. Work starts at 9 am in the morning of Day 1 and the duration is expressed in days. This gives you to total time or “buffer” you have to play with for this activity, before. If you reduce the time on these activities, you will just increase the float. If yes, then “free float” is your answer. Let’s take the project of exam study and preparation as an. Total Float vs Free Float is one of the most important concepts in PMP Certification training. When leveraged properly, project managers can shift activities and resources to meet the project objectives and priorities. g. A Gantt chart is a type of bar chart, developed by Henry Gantt, that illustrates a project schedule. CWT-Chapter 8. The critical path is the path through the network that has the highest total duration. Total float is often. It is the amount of time a task can be delayed without delaying the completion of the project. This flexibility can be at the project level or the activity level gives different choices. The Backward Pass determines the late dates, i. 5- After you move them to the right by double-clicking them, you can move them up or down to change the arrangement of the. The timescale for this bar is ‘Neg Float Bar’. Let’s look at the four top benefits of introducing float to your project management. Learn more about it here: Negative Float. Actual Cost (AC) = $60,000. Gui Ponce de Leon, PE, PMP, LEED AP, PMA Consultants LLC Abstract The critical path method (CPM) is widely used as a project management tool. Total float and free float pertain to the measure of time, or planning flexibility, connected with ongoing projects. Float : LS – ES = 17-7 = 10. Total float is associated with the path. It doesn’t replace other frameworks but rather works alongside them. Total float of activities on critical path is usually zero. PMP Questions 61 - 80. Note that our programs are management development courses and do not qualify for personal. Negative total float is caused when a constraint on the late dates is violated by duration and logic. Here's a post explaining the difference between the two, with an example: Total Float vs Free Float. By Praveen Malik, PMP July 22, 2023. The longest path of planned activities to the end of the project. Schedule compression is only useful on the critical path activities. Estimate Float Time. In project management, “float” or “slack” is the amount of time a task can be delayed without affecting the deadlines of subsequent tasks or the project’s final delivery date. Let’s discuss first a few points/definitions. Step 3 : PDM Float Calculation for Each Activity / Precedence Diagramming Method Example. The result of the analysis defines the critical path, a sequential set of related and essential steps. Resource Leveling and Resource Smoothing are two resource optimization techniques. Related: Critical path project management (with step guide) Types of float. Assemble two-tier bridge. Float is the amount of time that a task can be delayed without delaying the entire project. It is the difference between the estimated duration of the task and the latest. Use the resource from the activity with 9 days total float. Constraints. Total float is considered as a primary type of float. Each activity in Network Diagram is represented as below, Also, remember that Float can be calculated with these start and finish values using the formula below,Critical Path Analysis. You use both of them while analyzing the project network diagrams and. Optional Techniques ; Where appropriate, describes one or more alternative approaches that a program team might use, considering degree of difficulty,Resource smoothing is a technique used in project management to optimize resource allocation without extending project duration. Activity G has the highest total float; Activity F has the highest total float; Activity D has the highest total float; Activity H has the highest total float; The right answer is option (1) PMBOK® 6th Edition Reference: PMBOK 6th Ed. Tags: PMP Schedule Management. Total float: To calculate the total float of a task, subtract the task’s earliest finish from its latest finish. Based on project management in terms of time, discretionary dependency is sometimes referred to as preferred logic, preferential logic or soft logic. Total float = LS - ES or LF - EF Free float: This refers to how long an activity can be delayed. The critical path activities have zero float. The focus is on achieving a balanced workload by utilizing available slack in the schedule. Free Float = ES of successor activity – EF. Total Float: LS – ES = 17-7 = 10. To know more View Resources. 1. Today we will fly the NEW Dehavilland DHC-2 Beaver Float version from Victoria up the Squamish River to Whistler. In the given example below the total float for activity 3 is 5 and the free float is also 5(ES of activity 5-EF of activity 3). Float or Slack in Project Management. " But let's move on to a more concrete meaning. This helps to ensure that tasks are completed on time and that the project is completed within the allotted. Total Float A,B,D,F,H (critical activities): 0; Activities that have a total float of zero are usually activities that are on the. Total Float refers to the amount of time that a task can be delayed without affecting the completion date of the project. The earliest and latest that each activity can start and finish without making the project longer. Earned Value Management (EVM) SV = EV – PV. The latest finish marks a boundary that cannot be surpassed without delaying the entire project. Blog consists of essential resources for project management professionals and pmp aspirants. Project Management Professional (PMP)® certification requires knowledge of the project schedule network diagram in terms of types, benefits, and how to create one. This project management system can be. To understand this concept, refer the below-given example. You take all the information gathered in the project management plan to date and begin to develop a project schedule. Possitive Float is amount of time available to complete non-critical activities or work items without affecting the total project durationTotal float is the amount of time that a schedule activity can be delayed or extended from its early start date without delaying the project finish date or violating a schedule constraint. Suggested Answer: A 🗳️ Total float or slack is computed by subtracting the early start date from the late start date, or 19 גˆ’ 10 = 9. Interfering float is that part of the total float which causes a reduction in the float of the successor activities. Zero float. Total float is the total amount of time an activity on the schedule network diagram can be delayed without affecting the project. Total float is measured as the difference between the early and late start dates (LS - ES) or the early and late finish dates (LF – EF). The two main forms of float are free float and total float. Project Management Academy's free PMP formula based practice questions are developed from PMBOK® Guide topics. Slack time or float time is a term used in project management to refer to the maximum amount of downtime or delay we can have without project failure. You might also see these terms referred to as free slack and total slack; slack is synonymous with float. Project managers usually apply schedule adjustments to develop an efficient CPM schedule. Discretionary dependencies should be fully documented since they can create arbitrary total float values and can limit later scheduling options. Float is also known as slack. This video delves deeper into calculating the Critical Path on your Schedule Network Diagram by using the Forward and Backward pass. 3-1,. However if the scenario gives numbers, first you need to determine if the free float can handle the delay (i. The earliest and latest that each activity can start and finish without making the project longer. The total float time for a zero float task is always 0, which means it must be started as soon as possible and finished on schedule. . In project time management, when using the Critical Path Method (CPM) to determine the. Preparing a schedule with the appropriate level of detail is difficult. The term is used primarily in the Critical Path Method to distribute work among team members evenly where a project's critical activities are plotted on a timeline. Regardless of the inclusion of “PMP” in the name, the concept of variance at completion is the same and in fact, is one of twelve earned value metrics. It is like a built in safety. A concept related to, and crucial for using the Critical Path Method is float or slack. You cannot develop your project network diagram. Each activity has its. Free Float = ES of successor activity – EF. 19 Frequently Asked Questions on Critical Path Method Total Float vs. Precedence Diagram Method (PDM) Dependency Levels. E_PERT= (O+P+4×M)/6. how and why certain techniques or functions might impact total float, durations, critical path, or impacts from other scheduling tool calculations. Total Float = Late Start (LS) – Early Start (ES) For this sake, we. One frequent mistake made when preparing a schedule is creating too many. The LBNL EVMS complies with the criteria for project cost and sched-ule control as required by DOE Order 413. Define the various terms used in the development of network schedules, e. For activity B, the total float is 11 weeks; you could delay activity B by 11 weeks without delaying the project. 14 - 12 = 2. Positive float activities are not on critical path . Free float, on the other hand,. Critical Path Analysis (CPA) is a project management technique that helps identify the critical tasks and the amount of time required to complete them. We discuss three types of Floats in this video viz Total Float, Free Float and Independent Float with examples. GPM® and Forensic Total Float By Dr. Join winding tracks. Total float is the amount of time that a schedule activity can be delayed or extended from its early start date without delaying the project finish date or violating a schedule constraint. These are: Confronting/Problem Solving Collaborating. When we have several non-critical path tasks chained together, the backward pass calculations show that they all have the same float. This shows you that you can have up to nine days of delays without impacting subsequent tasks and still finish the overall project on time. Total float is the amount of delay that an activity faces without delaying the project completion date. In fast-tracking, you review the critical path and list all vital activities. Free Float: Amount of time a single task can be delayed without delaying the early start of any successor task. They are also called logical network diagrams. It is clear from this explanation that this type of float is providing the cushion to the overall project timelines. E_SA= (O+P+M)/3. The three point estimation can also be done by using simple average formula. A float is either total float or free float. The term Float expresses flexibility that helps in such schedule adjustments. The Project Management Body of Knowledge defines resource smoothing as " a technique that adjusts the activities of a schedule model such that the requirements for resources on the project do not exceed certain predefined resource limits. In doing so, it explains FF's significance and defines. ii) Working on the slab and pouring – 3 days. Track progress regularly: Stay on top of project developments and update your schedule as. It is the flexibility or buffer time available within the entire project. where total float is determined by the difference between late finish dates and early finish dates. It adjusts the activities of a schedule after resource leveling to ensure resource requirements stay within predefined limits. Total float is the duration that a task (or an activity) can be postponed without delaying the project. Total Float and Free Float are used in Critical Path Method (CPM) to. The LF for the activity is 8 days. Subtract EST from LST to get the total slack time for the project. Use the resource from the activity with 3 days free float. Take the Task B, for it total float = LS - ES = 6 - 3 = 3 days. Description and implementing procedures maintained by LBNL’s Project Management Office (PMO). Total float = 9 days. Best and Worst case. then hit F9. Total Float = LF – EF Total Float = LS – ES. Total float is how many delays are allowed from the beginning of the project which will not interfere with the projected completion date. All the following formulas along with the full form of their abbreviations are listed in the downloadable cheat sheet. The amount of time an activity can slip before it affects another activity’s finish date. I could say I have 5 minutes of interfering float on my critical path as I could hit the snooze button for 5 minutes and begin at 5 after the hour and have just enough time to do it all. All activities on the critical path will have float (or slack) of value zero. The total float can be calculated using either one of the following two formulas: Total Float = LF - EF; Total Float = LS - ES; To illustrate, we will use the first formula:. Step 3: Calculate the Early Start and Late Start Times. It is calculated for each activity by subtracting the early finish date from the late finish date. Note some informal resources may use the terms: VAC formula PMP, VAC PMP, or Variance at Completion PMP. Network Scheduling. PERT Formula is one on the ways for doing three point estimation. Check out for more free engineering tutorials and math lessons!Project Management Tutorial: Use forward and backward pass to det. Total float Time by which an activity may be delayed or extended without affecting the overall duration or violating a target finish date. 4 Creating an Activity Network Diagram. 2. Free 2,500+ PMP questions for practice To practice your pre-exam and review each question with detail explanation, let try with our FREE Exam tool New matching, multiple choices exam questions from domain, process, business environment and agile which align with the new 2021 exam contain outline ID 3961 these types of dependencies can create. available free float is greater than potential delay). A float is either total float or free float. You will also need to know the value of your project’s planned budget at. Free. 2 CRITICAL PATH METHOD, Page 210Updated on: 11 January 2023. Float management helps you identify “float” or “slack” time within your project’s schedules, helps you work around delays, and streamlines your projects. To calculate the nine days of float, you subtract the early finish from the late finish, or the early start from the late start. Instructor: Mike Miller. Bài viết "MỌI KIẾN THỨC VỀ PMP®" bao gồm DANH SÁCH CÁC TỪ KHÓA/THUẬT NGỮ QUẢN LÝ DỰ ÁN QUAN TRỌNG mà tác giả tổng hợp được dựa trên:- Kinh nghiệm tác giả đã thi đậu (thi đỗ) ngay lần thi đầu tiên các chứng chỉ quốc tế PMP® (2012), PMI-RMP® (2013), PMI-SP® (2013), PgMP® (2018), PfMP® (2018), PMO-CP® (2018), PMI. Free slack (or free float) is the amount of time you can delay a task, without impacting the early start (ES) of the successor(s). A Guide to the Project Management Body of Knowledge (PMBOK® Guide) (5th ed. These 14 metrics are certainly not the only metrics that can be tracked to help realize the health of your schedule, but they will provide you with some important data, that you can to turn into information. Project Management Professional (PMP)®. In Project Scheduling, Float (or Slack) is the amount of scheduling flexibility. The main reason is due to changing a setting in primavera p6 schedule option tab. LF = (lower) LS – 1. Let's take an example to understand this. 7. But, there’s a little more to it than that. Total float (TF) shows the project completion date and gives the team members flexibility to help them follow the schedule. The ability to determine total floats and the critical path for the as-built portion of a schedule (left of the data date) is solved by the graphical path method (GPM). To know your project’s critical path, look for the tasks with the same EF and LF. Free slack (or free float) refers to how much time a task can be delayed before a subsequent task — or the entire project itself — is also delayed. It’s important to understand the. When calculating float, know that zero (0) float means that if one delay occurs, the project will fall behind schedule. Alas, all is not well in. Then you must follow these three additional steps to develop a critical chain network diagram:Step 4: Calculate the total float To calculate the total float of a task, project managers need to subtract the duration of each task from the difference between the late finish date and the early finish date of each task. This process determines which activities are ". eurocontainers. In the Views list, double-click Detail Gantt. Slack is also known as Float in project management. The critical path is the path with the least amount of free float. In our example Activity B starts on Beginning of Day 6 (9 am) and finishes on End of Day 7 (5 pm). It is the difference between the latest finish time of the activity in question and the earliest starting time of the. Let’s consider that a project activity is not on the PMP critical path. Total float is a project management tool used to identify risks and opportunities in a project. Total Float: LF – EF = 27-17 = 10. To simplify, total float is the room for delay an activity can have before impacting the end date of the job. Leads, lags and float are used as part of activity sequencing process. Free float, also known as project float, is the amount of time an activity can be delayed without delaying the early start of the next activity. The Total Float is simply the sum of the Free and Interfering Float. Washing the cup has a total float of 4 minutes and 30 seconds. Can negative float exist in a schedule network? What impact does it have? How does it impacts the critical path? As a Project Planner or Manager how should work on these cases?These were some of the questions that came up in a recent session on Practical PMP with MS Project. Visit: Total Float and Free Float.