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Chapter 3: Problem 11

How do planned lead times differ from actual lead times? Which is typically bigger, the planned lead time or the average actual lead time? Why?

Short Answer

Expert verified
Explain the reason for the difference in size. Answer: The key difference between planned lead time and actual lead time is that planned lead time is an estimated duration based on projections, while actual lead time is the actual duration it takes to complete a task or project. Typically, planned lead time is bigger than the average actual lead time because companies incorporate a buffer to account for uncertainties and potential delays. This buffer helps reduce the risk of late delivery or production issues.

Step by step solution

01

Define Planned Lead Time

Planned lead time is the estimated duration required to complete a specific task or project. It takes into account the time needed for procurement, production, and transportation processes, based on historical data and expectations.
02

Define Actual Lead Time

Actual lead time, on the other hand, is the actual duration it takes to complete a task or project from start to finish. It may differ from the planned lead time due to various factors, such as unexpected delays, production issues, or changes in demand.
03

Compare Planned and Actual Lead Times

Planned lead times differ from actual lead times because they are based on estimates and projections, while actual lead times are based on the time taken to carry out the task or project. In other words, planned lead time is an estimate, whereas actual lead time is a fact.
04

Determine Which is Bigger: Planned Lead Time or Average Actual Lead Time

Typically, the planned lead time is bigger than the average actual lead time. This is because companies often incorporate a buffer into their planned lead time to account for uncertainties and potential delays that may occur during the project.
05

Reason for the Difference in Size

The reason for the difference in size between the planned lead time and the average actual lead time is that companies need to ensure that they have enough time to complete a task or project without putting too much pressure on their resources. By incorporating a buffer into their planned lead time, businesses can account for potential disruptions and reduce the risk of late delivery or production issues.

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