What is Program Evaluation Review Technique Chart?

840 reads · Last updated: December 5, 2024

A program evaluation review technique (PERT) chart is a graphical representation of a project's timeline that displays all of the individual tasks necessary to complete the project. Put simply, a PERT chart is a project management tool that allows users to map out a project's timeline and itemize individual tasks. This means that the PERT chart allows users to communicate project instructions and set schedules and timelines for projects among other things.

Definition

The Program Evaluation Review Technique (PERT) chart is a graphical representation of a project's timeline, showing all the individual tasks required to complete the project. Simply put, a PERT chart is a project management tool that allows users to map out a project's timeline and list individual tasks. This means PERT charts enable users to communicate project instructions, set the project's schedule, and progress, among other things.

Origin

PERT charts were first developed in the 1950s by the U.S. Navy to manage complex projects, such as missile development programs. They were designed to help project managers estimate the time and resources needed for projects under uncertainty.

Categories and Features

PERT charts are mainly divided into two types: activity-on-node and event-on-node charts. Activity-on-node charts represent tasks as nodes, with arrows showing dependencies between tasks. Event-on-node charts use events as nodes, with activities as arrows connecting these nodes. Key features of PERT charts include identifying the critical path, estimating project completion time, and identifying dependencies between tasks.

Case Studies

A typical case is Boeing using PERT charts in developing new aircraft to manage project timelines and resource allocation. By identifying the critical path, Boeing could optimize resource allocation to ensure timely project completion. Another case is NASA using PERT charts in the Apollo program to coordinate complex tasks and schedules, ensuring each task proceeded as planned.

Common Issues

Common issues investors face when using PERT charts include misunderstandings of the critical path, which can lead to improper resource allocation. Additionally, PERT charts rely on accurate time estimates, and any errors in estimation can affect the overall project timeline.

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