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A coffee shop is a good illustration of a work-related project that may be segmented into structures, tasks, subtasks, and work packages, as this type of establishment requires. The speed of work in coffee shops is fast, and employees are expected to fulfill their jobs, which include producing beverages and completing sales transactions in a quick and efficient manner. Training employees to follow particular processes to complete customer orders without wasting any time would be possible with the help of the CPM/PERT chart. Including delegating particular responsibilities to each individual worker. For instance, one worker would be responsible for taking orders and checking customers out, another worker's only responsibility would be to prepare the beverages and fulfill the orders, and a third worker would be in charge of stocking the supplies. The workload might be more effectively distributed, leading to increased productivity and a more streamlined experience for the customers as a whole. Managing a project with a CMP/PERT chart is more cost effective than other methods for a few different reasons. The critical path in the CPM/PERT chart reveals to managers which activities are time-sensitive. This information enables managers to concentrate their efforts largely on the activities that contribute the most significantly to the successful completion of the project. Following that, any necessary adjustments can be made. Either the processing time at important points in the project can be shortened in order to produce more slack time, or the project timetable can be compressed in order to achieve a faster turnaround. Because of this, managers are able to be more cost effective by concentrating their efforts on the appropriate activities at the appropriate times. The amount of time it takes to complete a project is directly influenced by the amount of time it takes to do its tasks and subtasks; hence, when one of these times is off, the entire project is off. The utilization of a CBM/PERT chart assists managers in maintaining focus, reducing unnecessary expenses, and meeting deadlines for project completion.