Resource Histograms

Definition: Resource Histograms visually display the distribution of resources used over time in a project.
Construction: To construct a Resource Histogram, use the orders of activities from an activity network and their respective durations.
Utilization: Determine the utilization of resources across the timeline by marking the resources needed for each activity.
Analysis: Identify periods of over-utilization and under-utilization. Over-utilization may require reallocation or additional resources, while under-utilization signifies inefficient use of resources.
Management: Resource histograms aid in balancing the utilization of resources, making them an essential tool in project management.
Critical Paths and Resource Histograms: The resource histogram is used in conjunction with the critical path. It assists in identifying critical activities that cannot be delayed without impacting the project completion time.

Definition: A Gantt Chart is a type of bar chart that represents the schedule of a project.
Construction: It is constructed using information from the activity network, including task dependencies and duration.
Pictorial Representation: Each task is represented by a bar; the position and length of the bar reflect the start date, duration, and end date of the task.
Dependencies: Task dependencies are represented using arrows or lines connecting different tasks.
Flexibility: Gantt charts can be easily updated to reflect changes in project timelines or tasks, making them an invaluable project management tool.
Visualisation: Gantt Charts provide an easy-to-understand visualisation of the project timeline facilitating communication among project team members and stakeholders.