### Right First Time (RFT) Chart

Understanding the Right First Time (RFT) Chart

The RFT chart is a chart-like report used by Rolls Royce. It may look something like the chart shown below, though your chart may vary due to different selection criteria.

Sample Week to Week RFT Chart

1. The Y axis labels on the left of the chart show the percentage value for Right First Time.

2. The black line is the conforming feature percentage line. Parts generally have many features, and this shows the statistical result of those features. If any of the features fails, the part is considered defective.

3. The blue line shows the percentage of conforming parts. For example, if the number of defective parts is 1, and the conforming parts are 4, this chart calculates the report using this equation:

4. Each colored column shows the conforming parts in green and the defective parts in red.

5. The Y axis labels on the right of the chart show the number of parts.

6. The X axis labels on the bottom show the chosen time period. The above image shows each label as a different week throughout the year. It draws columns if there is data for the time period specified. The YearOnly report will only show a single column for the selected year.

Displaying a Right First Time (RFT) Chart

To display an RFT chart, follow this procedure:

1. From the Tools menu choose Options. The Option dialog box appears.

2. From the Option dialog box, click the Definition tab.

3. Define the Process number and Part serial number. At a minimum, these two items must be specified.

4. Click Save and OK. The Option dialog box closes.

5. From the side bar, click All Parts or select a category containing the part for which you want to display the RFT chart. The main view displays the part thumbnail.

6. Right-click on the part thumbnail on the main view and from the shortcut menu choose RFT chart. The RFT Conditions dialog box appears.

RFT Conditions dialog box

1. - Period query: Defines the time period to query. The transactions within the selected time period will be included. Click on the small calendar icon to select the date for the period query. Once the calendar displays, you can use the left and right black arrows to go to different months and select the dates you want. If needed, click on the calendar's title to change from a single month calendar to a 12 month calendar, or again to a 12 year calendar to quickly get to the year or month you want.

Day to Day - Defines a query from day A to day B.

Week to Week - Defines a query from week A to week B. The selected day for the week doesn't matter.

One Year - Defines a query for a year with 12 columns, one for each month. The selected day month, week, or day doesn't matter.

Multi Year - Defines a query from year A to year B. The selected month, week, or day doesn't matter.

1. - Process #: This defines the process to use in the analysis.

   - Apply to: This determines either the first or the last measurement to use in the analysis.

7. Use the Period query to define the time period you want to use in the RFT chart.

8. Choose a process number from the Process NO list.

9. Choose what measurement the condition applies to, from the Apply to list.

10. Click the OK button once everything is filled out. It remains unavailable for selection if you haven't defined a process number.

Copying and Printing the Right First Time (RFT) Chart

The two icons in the toolbar area of the RFT chart let you copy and print the chart:

The Copy to Clipboard icon displays the Copy to Clipboard dialog box.

Copy to Clipboard dialog box

Use this dialog box to copy the chart as an image to your Windows clipboard. You can then paste this image into any other software that accepts images (such as MS Paint, MS Word, MS Excel, and so forth).

- The available Copy # by # buttons contain some preset sizes to use for the chart you're copying. These are: 640 x 480 pixels, 800 x 600 pixels, 1024 x 768 pixels, and 1280 x 1024 pixels.

- The Copy Custom button copies the chart and sizes the image in the clipboard to use the custom dimensions in the two boxes under the Copy Custom button.

This Print icon displays a standard Print dialog box letting you send the output to a printer or similar output device.