Help Manual

Contents






Sigma Magic Help Version 15

TAKT Time

Overview

TAKT time is the amount of time available to produce one product or deliver one service. For example, if you have to make 10 products in 1 hour (60 minutes), the TAKT time would be 6 minutes. If you make one product every 6 minutes, at the end of the hour, you would have made the required quantity of 10. TAKT time is a calculated number and not a measured number by cycle time. By comparing the cycle time to the TAKT time, we can determine if the process is capable of meeting customer needs.

To add this tool your workbook, click on Lean and then select TAKT Time.

Inputs

Click on Analysis Setup to open the menu options for this tool.

Setup

A sample screenshot of the setup menu is shown below.
inputs
1
Num Rows: Specify the number of rows of data you would like to enter on the worksheet. This information is used to format the worksheet. Note that any data below this formatted area will be cleared.
2
Time Units: Enter the units for the TAKT time. This is the unit in which the results would be computed and displayed.
3
Demand Period: The first input is the period of the analysis. Enter the duration that is considered for the product or process demand. Typically, this would be a month. The analysis results should not change what period we pick, we just need to make sure that we enter the rest of the data in sync with this period. For example, if you specify the period to be one month, you should enter the demand in units for one month.
4
Days/Month: The number of working days for the period of study. You need to subtract the days your company does not work (such as weekends) to derive this number.
5
Work Hours/Day: The total work hours per day. Here, you would consider if you are running your company in one shift, two shifts, three shifts etc. Don't enter any overtime that you occasionally do in this number.
6
Nonworking Hours/Day: The number of planned non-work hours per day for example lost in meetings,  lunch break, tea break, etc.
7
View Example: Click on this button to open the example file. You can view the example to get an idea of how to fill out this tool or you can use the example as a starting point and modify it to meet your project needs.
8
Help Button: Click on this button to open the help file on this topic.
9
Cancel Button: Click on this button to exit without saving any changes.
10
OK Button: Click on this button to save changes and update your analysis results.
On the worksheet, enter the details of your products/service:
  • The description of the product/service and the total demand per period. The period is the same period that you have defined in the dialog box.
  • If there are multiple products, enter the above details for each of your products.

Charts

If you click on the Charts button, you will see the following dialog box. Charts
1
Title: The system will automatically pick a title for your chart. However, if you would like to override that with your own title you can specify a title for your chart here. Note that this input is optional.
2
Sub Title: The system will automatically pick a subtitle for your chart. However, if you would like to override that with your own subtitle you can specify a subtitle for your chart here. Note that this input is optional.
3
X Label: The system will automatically pick a label for the x-axis. However, if you would like to override that with your own label for the x-axis you can specify a different label here. Note that this input is optional.
4
Y Label: The system will automatically pick a label for the y-axis. However, if you would like to override that with your own label for the y-axis you can specify a different label here. Note that this input is optional.
5
X Axis: The system will automatically pick a scale for the x-axis. However, if you would like to override that with your values for the x-axis, you can specify them here. The format for this input is to specify the minimum, increment, and maximum values separated by a semi-colon. For example, if you specify 10;20 then the minimum x-axis scale is set at 10 and the maximum x-axis scale is set at 20. If you specify 10;2;20, then the x-axis increment is set at 2. Note that this input is currently disabled and you will not be able to change this setting.
6
Y Axis: The system will automatically pick a scale for the y-axis. However, if you would like to override that with your values for the y-axis, you can specify them here. The format for this input is to specify the minimum, increment, and maximum values separated by a semi-colon. For example, if you specify 10;20 then the minimum y-axis scale is set at 10 and the maximum y-axis scale is set at 20. If you specify 10;2;20, then, in addition to minimum and maximum values, the y-axis increment is set at 2. Note that this input is optional.
7
Horizontal Lines: If you want to add a few extra horizontal reference lines on top of your chart you can specify the values here. The format for this input is numeric values separated by semi-colon. For example, if you specify 12;15 then two horizontal lines are plotted at Y = 12 and Y = 15 respectively. Note that this input is optional.
8
Vertical Lines: If you want to add a few extra vertical reference lines on top of your chart you can specify the values here. The format for this input is numeric values separated by semi-colon. For example, if you specify 2;5 then two vertical lines are plotted at X = 2 and X = 5 respectively. Note that this input is optional.

Verify

If you click on the Verify button, the software will perform some checks on the data you have entered. A sample screenshot of the dialog box is shown in the figure below. Verify The objective of this analysis as well as any checks that are performed is listed in this dialog box. For example, the software may check if you have correctly specified the input options and entered the required data on the worksheet. The results of the analysis checks are listed on the right. If the checks are passed, then they are shown as a green-colored checkmark. If the verification checks fail, then they are shown as a red-colored cross. If the verification checks result in a warning, they are shown in the orange color exclamation mark and finally, any checks that are required to be performed by the user are shown as blue info icons.

Outputs

Click on Compute Outputs to update the output calculations. A sample screenshot of the worksheet is shown below.
outputs You can read the total TAKT time and the contribution that each product/service makes to the total TAKT time. What-if analysis can also be performed to see how the TAKT time changes with changes in product mix and demand.

Notes

Here are a few notes regarding this analysis:
  • Currently, you can enter up to 20 products. If you have more products, you can pick the most important ones using the 80-20 rule.

Examples

Following examples can be found in the Examples folder within the software.
  • Calculate the TAKT time for a company that makes 5 main products operating one shift 5 day work-week (TAKT Time 1.xlsm).