It is essential to have good quality guidelines about how to film a manual process to deeply analyze every worker movement.
Standard Work Measurements are a critical tool that provides information for the successful operation of an organization.
In order to assess whether individual workers perform as well as they should, performance standard are a key tool for time measurement.
So, without a standard, it is not possible to determine the level of performance of a human work.
In ISC, we work with MTM-2 as our accepted method for performing time and motion studies.
This way, and according to the Industrial Engineering Handbook and Work Measurement and Methods Improvement: “we can find out the elements of work required to perform an operation, the order in which elements occur, and the times which are required to perform them effectively”.
The result obtained with the time and motion study is the time standard. It means the time required by an average worker, working at normal pace, to complete a specified task. And all of this according to the MTM-2 standard.
Bear in mind that the time standard includes personal time, fatigue, and unavoidable delays.
Classic time studies vs Modern time studies
Traditionally, time standards used an experienced analyst and a stopwatch.
Fortunately, the advances in digital recording offer an excellent opportunity to incorporate videos to classic time studies.
This way, the accuracy of the results improves dramatically.
It is a reality that organizations are seeing the value in establishing a permanent record of a specified task as it was being performed when the standard is set.
ISC offers DGI, a tool that links video to analysis. Video time and motion analysis with DGI accurately determines the time needed by any task. While simultaneously isolating the non-value-added work.
But this poses a new problem: how to correctly place the camera for the complete recording of the manual process?
The aim of this entry is to explain the best way to film manual process.
Apply DGI to each recording
DGI, the advanced software that focuses on manual work processes and the best way to do Time and Motion Studies in a professional manner.
It allows the user to import the recorded human process and provides the most efficient tools for analysis.
In the first place, analyze human work with MTM-2 and ergonomics. Then, identify situations that are not adding value.
Then, the Non-Value Added module allows you to specify the improvements in order to enhance the cycle time. That is, reducing or eliminating wastes detected in the step 1.
Additionally, the Gantt Workflow module allows you to build an Action Plan from the tasks above.
And finally, export all the relevant information. Documents about the initial state of the machine (upon recording) and of the improved situation.
The document exported from the DGI software contains all the necessary information about the original time and motion study.
it also contains the details of every improvement to enhance human productivity as well as the achievable results.
How to film manual process
This section of the post suggests some best practices regarding the use of video in the work measurement process.
- The filming must contain at least 2 whole work cycles of the manual process.
- For a comprehensive analysis, pay special attention to the most appropriate video angle to capture all movements for MTM-2 studies and ergonomics analysis. Angles to consider include bird’s eye (directly above looking down on the process for study), rear view and side view. In addition, place the camera as close as possible to human work and capture trunk movements.
- The recording speed will be appropriate to the cycle time and time resolution. The recording frame rate must be at least 30 FPS (Frames Per Second) to guarantee a time measurement of 0.03 seconds, which is usually acceptable in most cases.
- For privacy purposes, be careful to not include identifying features of workers.