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Construct the network diagram and identify the critical path? Activity Immediate predccassors days A B m A - 2 4 3 B A 1 3 2 C A 2 10 6 D C 1 3 2 E A 1 5 3 F B 2 4 3 G C 3 7 5 H C 0.5 1.5 1 I F,h 1 2 1.5 J I 1 3 2
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Can there be no slack time in a critical path network diagram?
The critical path is the set of activities that can't be put off -- they determine how long the project will take overall, and a delay in any of these activities will delay the project.You can always put off the slack, however, without increasing the total duration of the project. So the answer is "Yes, there can be no slack time in a critical-path network diagram."
Give detail of critical path analysis network?
See the link section for a detailed explanation. In a nutshell, the idea is to calculate those tasks that take the longest and cannot be skipped nor done in parallel. These tasks become your critical path - which define the shortest amount of time the project will take to complete. Some projects may have more than one critical path; though the one with the longest time frame will define the time frame. All other tasks can be done in parallel or can be skipped. Once the critical path is defined, then one can try to redefine certain components so as to remove them from the critical path. The fewer items on the critical path the smaller the risk of failure and the easier it is to get more things done in parallel.
Definition of pert cpm?
Its the abbreviation of Program Evaluation and Review Technique / Critical Path Method. The critical path method (CPM) is a project modeling technique developed in the late 1950s by Morgan R. Walker of DuPont and James E. Kelley, Jr. of Remington Rand.Kelley and Walker related their memories of the development of CPM in 1989. Kelley attributed the term "critical path" to the developers of the Program Evaluation and Review Technique which was developed at about the same time by Booz Allen Hamilton and the US Navy. The precursors of what came to be known as Critical Path were developed and put into practice by DuPont between 1940 and 1943 and contributed to the success of the Manhattan Project. CPM is commonly used with all forms of projects, including construction, aerospace and defense, software development, research projects, product development, engineering, and plant maintenance, among others. Any project with interdependent activities can apply this method of mathematical analysis. Although the original CPM program and approach is no longer used, the term is generally applied to any approach used to analyze a project network logic diagram. PERT is a method to analyze the involved tasks in completing a given project, especially the time needed to complete each task, and to identify the minimum time needed to complete the total project. PERT was developed primarily to simplify the planning and scheduling of large and complex projects. It was developed for the U.S. Navy Special Projects Office in 1957 to support the U.S. Navy's Polaris nuclear submarine project. It was able to incorporate uncertainty by making it possible to schedule a project while not knowing precisely the details and durations of all the activities. It is more of an event-oriented technique rather than start- and completion-oriented, and is used more in projects where time, rather than cost, is the major factor. It is applied to very large-scale, one-time, complex, non-routine infrastructure and Research and Development projects. An example of this was for the 1968 Winter Olympics in Grenoble which applied PERT from 1965 until the opening of the 1968 Games. This project model was the first of its kind, a revival for scientific management, founded by Frederick Taylor (Taylorism) and later refined by Henry Ford (Fordism). DuPont's critical path method was invented at roughly the same time as PERT.
What is a PERT Chart?
A PERT (Program Evaluation and Review Technique) chart is a graphic representation of a project schedule, showing the sequence of tasks, which tasks can be performed simultaneously, and the critical path of tasks that must be completed on time in order for the project to meet its completion deadline. A Gantt chart is another representation of a project schedule, but specifically uses a bar chart.
What is difference between profibus dp and profibus pa?
First I think I should point out that Profibus-PA instruments do not use RS-485 (such as is used by Profibus-DP), but a MBP (Manchester Coded, Bus Powered) physical layer, as described in the IEC 61158-2 standard. This is why you need a bus coupler to 'translate' the signals from Profibus-DP to Profibus-PA, and to power the PA bus. The maximum transmission rate of Profibus DP network 12Mbps The maximum transmission rate of Profibus PA network 45.45Kbps You need to power the DP instruments, while PA instruments get its power and exchange data via the same PA cable . You need DP/PA link or DP/PA coupler to link DP network with PA . when you use a coupler connected directly to the DP network , then your DP network transmission rate would be decreased to 45.45. From Pradip
What is cpm and pert?
Critical Path Method (CPM) - A schedule network analysis technique used to identify the schedule flexibility and the critical path of the project schedule network diagram.
What software would one use to construct a network diagram?
A great software program for you to use to construct a Network Diagram is Solarwinds. Solarwinds will let you download the software and have a free trial for thirty days for free that is fully functional so that you can try it out first.
How do you explain the critical path analysis?
Critical path analysis is a project management technique used to identify the longest sequence of activities in a project, also known as the critical path. It helps to determine the minimum time required to complete a project by identifying the activities that have no flexibility in their schedule. By focusing on the critical path, project managers can prioritize resources and ensure that any delays or changes on these activities will directly impact the project's overall timeline.
Why critical path is critical to project management?
Critical path method - This is the schedule network analysis technique used to identify the schedule flexibility and the critical path of the project schedule network diagram. The critical path is the longest path (sequence of activities) in a project schedule network diagram. Because it is the longest path, it determines the duration of the project and hence the finish date of the project given the start dateThe Critical Path and Duration of the Critical Path, gives the project manager a clear picture of how long all the activities can take to complete. It also helps him to identify the flexibility in the project schedule by calculating the early and late start and finish dates of each activity on each path. The schedule flexibility of an activity is measured by the positive difference between the late start date and the early start date for the activity and is called float time or total float.
What is critical chain method?
Critical path method - This is the schedule network analysis technique used to identify the schedule flexibility and the critical path of the project schedule network diagram. The critical path is the longest path (sequence of activities) in a project schedule network diagram. Because it is the longest path, it determines the duration of the project and hence the finish date of the project given the start dateThe important feature of the critical path method is to identify the flexibility in the project schedule by calculating the early and late start and finish dates of each activity on each path. The schedule flexibility of an activity is measured by the positive difference between the late start date and the early start date for the activity and is called float time or total float.
What are the uses of the critical path?
These critical path enables PMs to know which activities (tasks) are essential for Project Completion (can delay the project), and which activities are not. It also gives a clear idea on how to accelerate the projects (eg by adding more resources to the tasks on the critical path).Answer:Critical Path Method: This is the schedule network analysis technique used to identify the schedule flexibility and the critical path of the project schedule network diagram. The critical path is the longest path (sequence of activities) in a project schedule network diagram. Because it is the longest path, it determines the duration of the project and hence the finish date of the project given the start date
What is the significance of Critical Path Analysis in Project development?
Critical path method - This is the schedule network analysis technique used to identify the schedule flexibility and the critical path of the project schedule network diagram. The critical path is the longest path (sequence of activities) in a project schedule network diagram. Because it is the longest path, it determines the duration of the project and hence the finish date of the project given the start date.The second important feature of the critical path method is to identify the flexibility in the project schedule by calculating the early and late start and finish dates of each activity on each path. The schedule flexibility of an activity is measured by the positive difference between the late start date and the early start date for the activity and is called float time or total float.Without a proper Critical Path Analysis, an efficient Schedule for the Project cannot be created
What is chaining method?
Critical path method - This is the schedule network analysis technique used to identify the schedule flexibility and the critical path of the project schedule network diagram. The critical path is the longest path (sequence of activities) in a project schedule network diagram. Because it is the longest path, it determines the duration of the project and hence the finish date of the project given the start dateThe important feature of the critical path method is to identify the flexibility in the project schedule by calculating the early and late start and finish dates of each activity on each path. The schedule flexibility of an activity is measured by the positive difference between the late start date and the early start date for the activity and is called float time or total float.
Can there be no slack time in a critical path network diagram?
The critical path is the set of activities that can't be put off -- they determine how long the project will take overall, and a delay in any of these activities will delay the project.You can always put off the slack, however, without increasing the total duration of the project. So the answer is "Yes, there can be no slack time in a critical-path network diagram."
Which two situations require the use of a Link-state protocols?
(*)Fast convergence of the network is critical.(*)The network is very large.
What is dummy task for a project?
A dummy task is a task representing nothing (no actual work done), but is there only to clarify the activity network diagram. Source: http://www.pmhut.com/critical-path-mapping-with-activity-network-diagrams
Critical path of a project?
The critical path is the longest path (sequence of activities) in a project schedule network diagram. Because it is the longest path, it determines the duration of the project and hence the finish date of the project given the start date
