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Pert_chart_colored.gif: Original uploader was Jeremykemp at en.wikipedia derivative work: Rehua ( talk ) This is a retouched picture , which means that it has been digitally altered from its original version.
PERT is not easy to scale down for smaller projects. The network charts tend to be large and unwieldy, requiring several pages to print and requiring specially-sized paper. The lack of a timeframe on most PERT/CPM charts makes it harder to show status, although colours can help, e.g., specific colour for completed nodes.
PERT chart for a project with five milestones (10 through 50) and six activities (A through F). The project has two critical paths: activities B and C, or A, D, and F – giving a minimum project time of 7 months with fast tracking. Activity E is sub-critical, and has a float of 1 month.
PERT network chart for a seven-month project with five milestones (10 through 50) and six activities (A through F). X-Pert supports the full cycle of project management – through multi-level work breakdown structure creation, transition to multiple projects using critical path diagrams and Gantt chart presentation.
It's much less popular than PERT (Program Evaluation and Review Technique) or CPM (Critical Path Method) however, it allows some of those methods limitations to be addressed. The main limitations of PERT or CPM that might be addressed by GERT are: there are no alternative paths - all activities have to be performed
In probability and statistics, the PERT distributions are a family of continuous probability distributions defined by the minimum (a), most likely (b) and maximum (c) values that a variable can take. It is a transformation of the four-parameter beta distribution with an additional assumption that its expected value is
A Gantt chart is a type of bar chart [4] [5] that illustrates a project schedule. [6] This chart lists the tasks to be performed on the vertical axis, and time intervals on the horizontal axis. [ 4 ] [ 7 ] The width of the horizontal bars in the graph shows the duration of each activity.
Project management software are computer programs that help plan, organize, and manage resources.. Depending on the sophistication of the software, it can manage estimation and planning, scheduling, cost control, budget management, resource allocation, collaboration software, communication, decision-making, quality management, time management and documentation or administration systems.