Explain GANTT chart.
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A Gantt chart is a visual tool used in project management to schedule, plan, and track tasks over time. Named after its inventor, Henry Gantt, this chart provides a graphical representation of a project's timeline, showing the start and end dates of individual tasks or activities, as well as their durations and dependencies.
In a Gantt chart, tasks are represented as horizontal bars along a time axis, with each bar corresponding to a specific task. The length of the bar indicates the duration of the task, while its position on the timeline indicates its start and end dates. Dependencies between tasks are illustrated by linking the bars with arrows, showing the sequence in which tasks must be completed.
Gantt charts allow project managers to visualize the project schedule, identify critical path tasks, and allocate resources effectively. They provide a clear overview of task dependencies and milestones, enabling teams to coordinate their efforts and monitor progress towards project goals. Additionally, Gantt charts can be used to communicate project timelines and status updates to stakeholders, facilitating transparency and alignment.
For example, suppose a construction project involves several phases, including site preparation, foundation construction, building erection, and finishing. A Gantt chart for this project would display each phase as a separate task, with dependencies showing the sequence in which they must be completed. Project managers can use the Gantt chart to identify potential bottlenecks, adjust timelines as needed, and ensure that the project stays on schedule.