Total float pmp. Modern Project Management. Total float pmp

 
 Modern Project ManagementTotal float pmp  The latest finish marks a boundary that cannot be surpassed without delaying the entire project

exper. 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. Negative Total Float. 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 No one likes to do it, but often it’s necessary and worth it in the end. This helps to ensure that tasks are completed on time and that the project is completed within the allotted. Float. It represents the flexibility and scheduling cushion available to project. Project Float can also be the amount the critical path can be delayed without delaying the project past its constrained finish date. 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. Total floats and free floats are important in. Let’s consider that a project activity is not on the PMP critical path. 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. If you want to learn how to calculate TF and FF, refer to Total Float vs. Total Float (TF) :LS – ES , LF – EF. If you don’t see the Free Slack and Total Slack fields, press Tab to move to those fields. ES = Early Start, EF = Early Finish. The CP becomes. 머리아프게 하지말구 Free float은 잊자. Megan Bell. 3-1,. プロジェクトネットワーク図に4つの. Total Float. Float is a tactic that can be used alongside your existing project management strategies. However, that float is shared between them. 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. 2- You should not have any open ends. Two important concepts in CPA are Total Float and Free Float. In fact, there are two distinct types of float that project managers use to manage task timelines: total float and free float . and the project completion date. The following are the types of project management float: Total float. During PMP® coaching sessions, I observe […] All the following formulas along with the full form of their abbreviations are listed in the downloadable cheat sheet. In this article, we will be discussing total float vs free float. Tasks that have negative float should have an “explanation and a corrective action plan to mitigate the negative float”. Free float refers to the amount of time an activity can be postponed before it delays a successor. If you use level of effort or WBS summary activities in your schedule always make sure that the schedule calculates “Total Float” as. Total float is how many delays are. Calculating Float in a PND. Total Float: Amount of time an activity can be delayed without effecting the Project Completion date. Project management formula for Late Finish (LS) if the convention that the project starts on day one is adopted. Required fields are marked. or. 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. But that diagram does not show the. Mark the Calculate multiple float paths option. The threshold is set at 5% or less. It applies to both independent tasks that can be performed simultaneously and sequential ones that depend on the completion of preceding activities. Total Float: Amount of time an activity can be delayed without effecting the Project Completion date. It is the total amount of time any task can be delayed without impacting the delivery date of the project. To choose, what type of critical path you want in Primavera P6, change the settings of the project. The Total Float is estimated as the distinction between the ambitious beginning and poor start dates (LS – ES) or late completion and early completion dates (LF – EF). In this article, we will be discussing total float vs free float. Post navigation. Term #9: Free float (FF) Free float is the same as total float — it even uses the same formula. By default Float or slack actually means Total FloatTotal Float: This term is given. . Take the Task B, for it total float = LS - ES = 6 - 3 = 3 days. ”. Negative Float appears in a schedule when the early dates of an activity are later than the late dates. ETC = (BAC – EV) / CPI. Click the link below to download. Critical path method (CPM): The critical path method is a step-by-step project management technique for process planning that identifies critical and noncritical tasks, preventing timeframe problems and process bottlenecks. The two main forms of float are free float and total float. It is perfectly fine to use either term in project management. This can also occur when multiple calendars. Total Float and Free Float Calculation 2 Project Management Professionals Hot Topics & Challenges - Time Management . 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). Total Float of an activity = Late Start of an activity – Early Start of an activity. Project Management frameworks can be a little dry at times, but. Reference: PMBOK® Guide 4th Edition, page 155In project management, the terms slack and float describe the length of time that an activity can be delayed without delaying the finish date of a subsequent activity, or the finish date of the entire project. In this article, we’re going to look in. Walker and James E. It is the total amount of time any task can be delayed without impacting the delivery date of the project. Total Float and Free Float Calculation 2 Project Management Professionals Hot Topics & Challenges - Time Management . + 3 σ. To calculate total float, subtract the task’s earliest finish (EF) date from its latest finish (LF) date. For example, if a task is scheduled to take 5 days to complete and it. Create regular project update reports. paper) 1. Total float: This is the amount of time an activity can be postponed from the early start date before the project's completion date or a scheduling restriction is violated. Constrained activities can show negative Total Float and can drive negative float to their successors or predecessors. For Critical Path ES = LS and EF = LF; For Critical Path Total Float = 0; Total / Free Float PMP Formulas. Total float is often known as the slack. Also known as a Gantt Chart. Applying contraints throughout a project will affect what activities are Critical. + 2 σ. Project management aims to quickly finish. By understanding the total float of a project, project managers can identify potential risks and opportunities that may arise. 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. First things first… on the PMP Exam, Float is also written as Slack. A forward pass in project management is a technique used to move through a project network diagram. test prep!!!QNA. 1. The second type, free float, indicates how long you can delay an activity without delaying the subsequent tasks. Project managers use this technique to manage resource conflicts especially when time is a priority. By Praveen Malik, PMP July 22, 2023. The forward pass helps you understand the project duration and calculate the early start and early finish values (meaning, the earliest day each project task can begin and wrap up). Once backward pass and total float calculation is complete the resultant network diagram will look as follows. This paper presents the concept of GPM forensic total float and its role in retrospective schedule analysis, whether in updating or forensic analysis. This post is a collection of PMP study notes for the PMBOK ® Guide, 6th Edition. When you are asked to calculate the “Float” for an activity in the PMP Exam, you are asked to calculate the “Total Float“. Project Management Professional (PMP)® certification requires knowledge of the project schedule network diagram in terms of types, benefits, and how to create one. The different Types of float are Free Float, Total Float, Project Float, Interfering Float,. Total float is the length of time you can delay a task from its early start date without delaying the project’s anticipated date of completion. It brings many benefits, from helping you never miss a deadline to keeping your team focused on what needs to be done. i-e, Activities without a successor or predecessor. By Praveen Malik, PMP July 22, 2023. I learned most of the project management concepts while managing software projects – Critical Path Analysis was one such concept. 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. Also we have learned that the total float of the activities on the critical path is always equals to ZERO, by. It is used when project time constraints are important. Any float that Activity C uses isn’t available for Activity E. (Sometimes it seems that we try to make things. Standard Deviation in the PMP® Certification Exam. - Trong bài thi PMP, khi bạn được yêu cầu tính “ Float. To use this online calculator for Total Float, enter Late Finish Time (LFT), Early Start Time (EST) & Activity Time (tactivity) and hit the calculate button. Float management is a project management style known for its flexibility. Total Float vs Free Float. C. Now total float is calculated as the difference between LS and ES or the difference between LF and EF. This can be calculated by using the formula: LF – EF = total float. Independent float. Figure 4: Scenario 3 – Activity D Delayed 5 DaysProject Finish Milestone has a -30 days total float so it may have many activities with the same total float. Leads, lags and float are used as part of activity sequencing process. Total Float = Late Start (LS) – Early Start (ES) For this sake, we. In Primavera P6 there are two main reasons for existence of negative float: 1. constraint-generated total float would actually make the path longer, with total float being part of the shortest possible duration for the overall project. Total float is the duration that a task (or an activity) can be postponed without delaying the project. Float, or slack, is the amount of time a delayed task can postpone the project's completion. 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. It is the amount of time an activity can be delayed without impacting other activities or the project end date and changes over the course. 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. In Figure 2, a milestone is shown for which a ‘Finish On or Before’. Free. Total Float vs Free Float is one of the most important concepts in PMP Certification training. The latest start time (LST) is the last date the task could begin and not cause a delay. You use both of them while analyzing the project network diagrams and. Project Management Professional (PMP)®. 3. Click on ‘Negative Float’ in the Filter column, and up will. On a critical path, the total float is zero. 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. Project management team is responsible for many activities; all of the following activities are part of project management team responsibility except:A critical activity in project management is any task that stakeholders must complete on schedule to meet project deadlines. Critical Path Analysis. Types of float in project management. If the business needs to make up this money, your best bet is to secure an. They are drawn to depict project dependencies or relationships between two activities and/or milestones. For example the total float for Task A = LS - ES = 4 - 1 = 3 days. Total float (= độ linh hoạt của lịch trình) được đo bằng khoảng thời gian mà một hoạt động có thể bị trì hoãn hoặc kéo dài kể từ ngày Early Start của nó mà không làm chậm ngày hoàn thành dự án hoặc vi phạm một ràng buộc lịch trình. (2) Resource Leveling, called Resource Leveling, is a technique that avoids over-allocation. Total float and free float pertain to the measure of time, or planning flexibility, connected with ongoing. In doing so, it explains FF's significance and defines. Each type serves a specific purpose and provides valuable insights into project scheduling. Total Float: On the other hand, Total Float encompasses the total amount of time a task can be delayed without affecting the final project completion date. Total Float = LF – EF (or LS – ES)Float means "scheduling flexibility" in project management, also commonly known as "slack. Total float . Source: Project Management AcademyI never thought that total float and free float were different concepts before my PMP exam preparation. Create regular project update reports. Project management The application of processes, methods, knowledge, skills and experience to achieve specific objectives for change. What is the total float for this activity? 6 days; 3 days; 1 day; 5 days; ValidateBy Praveen Malik, PMP July 22, 2023. 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. There are 4 types of dependencies in project management viz. This. The PMP certification exam has 180 questions and requires a good PMP study. TF = LF – EF or LS – ES. 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. A. Total Float for activity F = (LS - ES) of F. Two important concepts in CPA are Total Float and Free Float. iii) Framing the floor – 5 days. Incorporating free float and total float into project management can provide a number of benefits to the project team. Total float = Budget – Current Budget. C. Both of these formulas produce the same result. I never thought that total float and free float were different concepts before my PMP exam preparation. The key is that the schedule has to work for the project team. It is calculated for each activity by subtracting the early finish date from the late finish date. " But let's move on to a more concrete meaning. The amount of time an activity can slip before it affects another activity’s finish date. Optimistic (O), Pessimistic (P), and Most Likely (M). For example, if a task is scheduled to take 5 days to complete and it. By Praveen Malik, PMP July 22, 2023. You might also see these terms referred to as free slack and total slack; slack is synonymous with float. provides the Construction projects with a high quality Planning and Scheduling service with a team has many years of experience on Power Stations, Oil Refineries & Construction sites. With our blog, dive deeper into project management with this comprehensive exploration of Free and Total Float, both critical concepts used to manage projects successfully. トータルフロート はパスに関連付けられる。. In Project Scheduling, Float (or Slack) is the amount of scheduling flexibility. Total float . PMP formula for Late Finish (LS) if the convention that project starts on day one is adopted. An analysis technique used to identify the critical (essential) and non-critical (non-essential) activities associated with a business process or work plan and the amount of float (slack) associated with each activity. Float is calculated by first finding out the critical path and then subtracting it with the next longest path. Free Float (slack): The amount of time the activity can be delayed without delaying the early start date of the successor(s)Project Schedule Quality Check #6: The High Float Check. Updated: 04-11-2017 CPA Exam For Dummies with Online Practice Explore Book Buy On Amazon After you calculate the early and late start and finish dates, you can determine. The formula for calculating slack time (ST) is simple. GPM® and Forensic Total Float By Dr. 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. Before calculating Float it is important to find the critical path. Possitive Float is amount of time available to complete non-critical activities or work items without affecting the total project durationSchedule variance is part of Earned Value Management and helps project managers determine if a project is ahead of or behind schedule and by how much. Step 1: Obtain the project data. 3. Total Float: Total Float is the amount of time an activity can be delayed without delaying the project end date or an intermediary milestone. In order for TF to be zero (as it must be) LS and ES must be equal. Project planners use this method to develop project schedules, including IT, research, and construction. PMP EXAM CRAM CasaBlanca Publishing Corp | David Geoffrey Litten 2012 47 Total float and Free Float. You've used a computer to generate a schedule, but have you ever wondered what the terms Early Start, Late Finish, Total Float, or Critical Path really mean? This paper offers. FF (Free Float) = Simple formula to calculate Free Float is ES (of successor) – EF of current activity. com, 347-536-2811. Here are some tips to help you make the most of it: Create a detailed project schedule: This includes mapping out all tasks, dependencies, and deadlines. Among the various boundaries. Project management office - An organizational unit that oversees project management-related activities within an organization. Check out for more free engineering tutorials and math lessons!Project Management Tutorial: What is total float (total slack) an. Determining the critical path requires five steps: Draw the Network Diagram. Free Float in CPM. Constraints. Kelly developed this technique in the late 1950s. Slack is also known as Float in project management. The earned value system uses three basic values for measuring the current performance viz. 5. The more thorough your schedule, the easier it will be to identify and manage float effectively. 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. Cost Variance (CV) Formula: CV PMP Exam Guide. Click here to get my PMP exam brain-dump for free. We have written a post that explains how to elaborate the project network diagram step by step. Float in project management does more than simply keep your business afloat. critical path. This flexibility can be at the project level or the activity level gives different choices. A Project Supervision Professional (PMP) ® Exam Prep PurveyorTo avoid such errors, there are several check-ups you can perform. 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. If you want to have the longest path as critical path and do not want to consider total float, then you can use this setting. you can find the float or the slack of activity’s time by subtracting the early. It is calculated for each activity by subtracting the early finish date from the late finish date. 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”. You use. In the Views list, double-click Detail Gantt. Project float: Project float means there’s a soft deadline and a hard deadline for the project delivery. For activity B, the total float is 11 weeks; you could delay activity B by 11 weeks without delaying the project. Project managers usually apply schedule adjustments to develop an efficient CPM schedule. Matured. What is lead time in project management? Based on PMBOK® Guide Sixth Edition. It typically indicates a mi. There are 4 types of dependencies in project management viz. Activities for this project are as below (output from Define Activities process) –. When you reach the activity labeled as 6. PMP® Mock Examination – Wishing You Success !!!. – Float depicts the flexibility in a Network Path. The Project Management Body of Knowledge states that: The critical path method is used to estimate the minimum project duration and determine the amount of schedule flexibility on the logical network paths within the schedule model. As it is shown, in case you choose to have critical paths based on total float then you need to identify the total float threshold. Total float is associated with the path. Constraints affect an activity’s Total Float value. However, the total float option is advisable. Project management float also works for small-to-medium businesses (SMBs) and industries like construction or just about anything else. To simplify, total float is the room for delay an activity can have before impacting the end date of the job. Positive float activities are not on critical path . Project Selection Methods 5. You take all the information gathered in the project management plan to date and begin to develop a project schedule. FLOAT (SLACK) Floats are mainly of three different types: Total Float (slack): The amount of time the activity can be delayed without delaying the project end date. ג€ A CPM critical path is normally characterized by zero total float on the. . ). Check out for more free engineering tutorials and math lessons!Project Management Tutorial: Determine Total Float & Free Float (. What is zero float in project management? In project management, Zero float is a condition where there is no excess of time between activities. 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. Total Float = LF – EF (or LS – ES) Float means "scheduling flexibility" in project management, also commonly known as "slack. To know your project’s critical path, look for the tasks with the same EF and LF. Total float is the amount of time a task or a project can be delayed without impacting the overall project completion time. Total Float = LS – ES or LF – EFCritical chain project management (CCPM) and the theory of constraints have received much recent attention, but the basic principles underlying them are available through appropriate use of critical path method. , dependencies) among the project activities [1]. These articles cover the complex project management topics not explained well in the PMBOK ® Guide and other PMP Study guides. 5% = 47. Now total float is calculated as the difference between LS and ES or the difference between LF and EF. Accordingly, its formula is as follows: CPI=𝐸𝑉/𝐴𝐶. Mr. Total Float = LS – ES. D, Msc, MBA, PfMP,PgMP,PMP,RMP,PBA,PRINCE2,PMOC. Total Float is the maximum amount of time an activity can be delayed without delaying the Project. Place standalone items around. Since it is not on the PMP critical path, delay on this activity can be compensated. Discretionary dependencies should be fully documented since they can create arbitrary total float values and can limit later scheduling options. Total Float shows the difference between the Earliest Start (ES) and Latest Start (LS) of an activity before the completion date is delayed. The high float check looks for any tasks with a total float greater than 44 working days. 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. Date 05/07/2022. For any remaining activities, in this case Activity 1, the float will be the duration of the critical path minus the duration of this path. Activities without float are known as critical, and these activities. Since it is not on the PMP critical path, delay on this activity can be compensated. available free float is greater than potential delay). 2. Practice standard for work breakdown structures (2nd ed. It is used to determine the critical path, as well as the float of each task. Any delay in an activity on. Total float: To calculate the total float of a task, subtract the task’s earliest finish from its latest finish. Many agree that. 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). As defined in project management literature: Total Float is the amount of time that a schedule activity can be delayed or extended from its start date (early) without delaying the project finish date. Float là gì và cách tính Float trong kỳ thi PMP. Activities A, B, C, and D are on the project critical path. Project Management Articles. Free Float = ES of successor activity – EF. On any network path, the schedule flexibility is measured by 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, and is termed ג€total float. The former is called “free float”, and the latter is called “total float”. . TF = Late Finish – Early Finish = 7 – 5 = 2 days. But a project manager should understand how the system has calculated the values. In this video, you will learn how to use the information on a task table to create a project schedule network diagram, then perform critical path analysis i. This gives you to total time or “buffer” you have to play with for this activity, before. The second method most frequently used is to filter critical activities by specifying a total float less than or equal to zero. This video describes what the Critical Path is, and what Float is, and how they relate to each other. Don’t forget to check out the video. Another way of looking at negative float is the time beyond the scheduled completion date that a project or activity requires to achieve completion. Preparing a schedule with the appropriate level of detail is difficult. The original duration of B is 20, so the drag of B is therefore 15. . In this blog, I am addressing the confusion of Float and Free Float raised by PMP aspirants. Check out for more free engineering tutorials and math lessons!Project Management Tutorial: Determine Total Float & Free Float (. Note that the activity can have a total float value greater or equal to its free float time. Step – 3: Perform Forward and Backword pass (Not necessary every time!) Step – 4: Calculate the float. At project management, there are different guitar of flute: free float, total float, and project float. Finish to Finish (FF) - Later task does not finish until the previous task is finished. 1 Project Phases and Organization – Project Management Quality management is a process of continual improvement that includes learning from past projects and making changes to improve the next project. Go to Project screen -- bottom Details and check the Settings tab. 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. A control account is an important project management tool that involves the integration of specific and key elements of project specific constitutes. 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. Total float is the amount of time a scheduled activity can be delayed without delaying the overall project completion date. Total float. This article examines one of the many kinds of information that such analysis generates--float, more specifically, free float (FF) and total float (TF). Assemble two-tier bridge. This will give them the total float time for each task on the critical path. Take this free practice exam on PMP formulas to familiarize yourself with some of the PMP formula concepts. Regular project reports keep all of your stakeholders on top of what is happening with the project. It’s important to understand the similarities and differences between free float vs total float for the PMP certification exam, which we will outline later in the article. Float management helps you identify “float” or “slack” time within your project’s schedules, helps you work around delays, and streamlines your projects. We will make the total float equal -50 days and it has a Constraints Finish on an earlier date, so it is easier to filter the. Late Start (LS) = LF – Activity Duration (D) + 1; Critical Path PMP Formulas. 7. The slope of activity (D), on the other hand, has been relaxed by simply starting unit. We discuss three types of Floats in this video viz Total Float, Free Float and Independent Float with examples. Total: 72. 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. On the other hand, activities 1 and 2 have total Float. PMP credential holders should also know how to use the project schedule network diagram to identify the critical path and float for the project to enhance all schedule management. Project Float which is the amount that you can delay a project without delaying the next project. Given the information provided, what is the total float of activity D? Select one. then hit F9. Critical Activities can have either negative or zero Total Float. Compare this with Total Float and Free Float on a Network Diagram. e. But, there’s a little more to it than that. It can be calculated by subtracting the activity’s Early Start date from the Late Start date. Regular project reports keep all of your stakeholders on top of what is happening with the project. 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. 在对项目任务进行计划、排程时,有一个较为重要的概念叫:free float。那什么是free float,对于项目管理而言,它的意义或作用是什么呢?下面简单给大家做个介绍。 所谓free float,中文里的意思是:自由浮动时间。Free float,是float(浮动时间,也叫slack)的一种。具体而言,free float指的是:可以. To remove negative float from summary activities, you’ll need to adjust the P6 Schedule Options. This post will outline how to enable the Total Slack, Free Slack and Negative Total Slack in MS Project. Can move around on the schedule as long as its not delayed past latest finish. Enter highest EF in last box. Critical path method is a project management technique that helps assess and prioritize tasks, and determine the project's timeframe. Determine the latest start time (LST) and the earliest start time (EST). subsequent tasks ("free float")project. This is essential reading for the PMP exam. Pessimistic, Optimistic and Most likely estimates. PMI-ACP, PMBOK and the PMI Registered Education Provider logo are registered marks of the Project Management Institute, Inc. On critical path LS = ES and LF = EF hence total float is equal to zero. Some time back, we covered the Cost Plus Incentive Fee Type of Contract Calculations, which is a “must know” for the PMP exam. This paper presents the concept of GPM forensic total float and its role in retrospective schedule analysis, whether in updating or forensic analysis. Accordingly, A, B, and C are critical activities while activity D is non-critical with Total Float (TF) of 3 days. If a task has float, you can spend more time on it than is allotted, without disrupting the rest of the project schedule. 项目管理(project management)中有一个非常实用的英文术语叫total float,它在项目的进度计划和管理中常常会被用到,不仅如此,在与项目管理有关的认证考试中(比如:PMP项目管理专家等),total float也是一个重要考点。然而不少的小伙伴对于total float的具体含义和计算方法并不是很了解,本文中,睿.