pros..
some tasks can have some slack time without affecting the project completion time.
they are used to determine and avoid surprises and minimize wastage.
cons
it can be expensive to develop,update and maintain.
it can be complicated and confusing with multitudes tasks.
Advantages of a PERT chart is that it's a great mean for visualizing and communicating progress on projects. They usually help the Project Manager to better manage the project.
The main advantage of the Gantt Charts is that visualizing your project schedule makes it very easy for the Project Manager to communicate the project schedule to various stakeholders as well as to the project team. The main disadvantage is that Gantt Charts are not well suited for conveying complex dependencies or projects having significant potential variability in completion dates. The PERT chart was devised in the 50's for the Polaris project in order to represent this key missing concept.
PERT is a chart used to organize schedules and manage tasks within a project. PERT is an acronym of Program Evaluation Review Technique.
Henry Gantt was the person whom the Pert Chart was named after. He's the main person behind popularizing Gantt charts in the west in the turn of the twentieth century.
PERT chart is a technique for scheduling a project based on individual tasks or activities whereas Gantt Chart is a bar chart that represents the tasks and activities of the project schedule.Source: Satzinger, J., Jackson, R., Burd, S. "Systems Analysis and Design in a changing world" Fifth Edition, Cengage Learning, Boston.
Advantages of a PERT chart is that it's a great mean for visualizing and communicating progress on projects. They usually help the Project Manager to better manage the project.
A PERT chart is vital to planning because it helps people to plan certain functions of production. The chart will indicate some milestones before others.
A PERT chart is mainly used for documenting data (visually) on projects. This data may include the expected time and actual time of a task. A main objective of the PERT chart is to easily help the Project Manager establish the Critical Path of a project.
Can't post images here to give you a decent example of the PERT chart, here's an article on the subject: http://www.pmhut.com/using-pert-analysis , the article also explains how to make a PERT chart in MS Project.
PERT is a chart used to organize schedules and manage tasks within a project. PERT is an acronym of Program Evaluation Review Technique.
The main advantage of the Gantt Charts is that visualizing your project schedule makes it very easy for the Project Manager to communicate the project schedule to various stakeholders as well as to the project team. The main disadvantage is that Gantt Charts are not well suited for conveying complex dependencies or projects having significant potential variability in completion dates. The PERT chart was devised in the 50's for the Polaris project in order to represent this key missing concept.
The Gantt Chart, The PERT Chart
PERT refers to program evaluation review technique. Is a chart used in project management to coordinate tasks associated with projects.
Henry Gantt was the person whom the Pert Chart was named after. He's the main person behind popularizing Gantt charts in the west in the turn of the twentieth century.
PERT Chart
PERT chart is a technique for scheduling a project based on individual tasks or activities whereas Gantt Chart is a bar chart that represents the tasks and activities of the project schedule.Source: Satzinger, J., Jackson, R., Burd, S. "Systems Analysis and Design in a changing world" Fifth Edition, Cengage Learning, Boston.
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.