What is Check Sheet in 7 QC Tools

What is Check Sheet in 7 QC Tools?

→“Check Sheet in 7 QC Tools is a systematic method of collecting, recording and presenting the relevant data in a simple manner.”


1) Check Sheet in 7 QC Tools:

→“Check Sheet is a systematic method of collecting, recording and presenting the relevant data in a simple manner.”
→ The Check Sheet is sometimes called a tally sheet.




2) Dr. Kaoru Ishikawa identified five uses for Check Sheet in quality control:

   1. Process performance Check Sheet, 
   2. Defect item Check Sheet,  
   3. Defect location Check Sheet
   4. Task conformation Check Sheet  (Related to traceability) etc...
   5. Defect cause Check Sheet
What is Check Sheet in 7 QC Tools

3) Steps for making a Check Sheet in 7 QC Tools:

   1. Establish what information is needed.
   2. Determine 5W and 2H of Check Sheet.
   3. Construct the Check Sheet.
   4. Test the Check Sheet.
   5. Take the approval for Use the Check Sheet.
What is Check Sheet in 7 QC Tools

➤ Step 1. Establish what information is needed - Check Sheet in 7 QC Tools:

→ Define what information is needed? in Check Sheet.
→ Sometimes Check Sheet is known as record form, data form etc....


 Step 2. 5W 2H for Check Sheet in 7 QC Tools:

→ Why is the data needed?
→ What type of data collection is required? 
→ Where the data should be collected from? (Plant/machine/place)
→ Who has to collect the data?  (Operator/ supervisor/manager)
→ When will the data be collected?  (Every hour/ at the time of receipt)
→ How the data should be measured? (Instrument/clock)
→ How much data is essential?

 Step 3. Construction of the Check Sheet in 7 QC Tools:

➝ Check Sheet should broadly have three types of information. 
[1] Title of the Check Sheet.
[2] Source information
     ➧ Name of the project/ problem theme.
     ➧ Location of data collection.
     ➧ Date and/or time.
     ➧ Name of the person recording data.
[3] Content information
     ➧ Column/Raw with defect/event name.
     ➧ Then Column/Raw to record frequency.
     ➧ And Column/Raw to record total.



 Step 4. Test the Check Sheet in 7 QC Tools:

 Test the Check Sheet with at least three different collectors.
 Reconfirm that the columns/ rows are relevant and required.
 Check if the Check Sheet is easy to record and use.
 Make changes based on the feedback.



 Step 5. Use the Check Sheet in 7 QC Tools:

 Explain the Check Sheet to the data collector.
 Ensure that the data collector understands the reason for which the data is being collected.
 Collect data.
 Standardize its use to assure consistency.
 See below example of tally mark = 5.   
What is Check Sheet in 7 QC Tools

4) Example of Defect Tally sheet (Check Sheet in 7 QC Tools):

 The Check Sheet is also called as a tally sheet.
➝ The example of the tally sheet is mentioned below.

What is Check Sheet in 7 QC Tools

5) Example of Check Sheet in 7 QC Tools:

 The example othe f Check Sheet is given below.


What is Check Sheet in 7 QC Tools

6) Benefits of Check Sheet in 7 QC Tools:

 By using Check Sheet we can make data gathering simple, systematic, easy and effective.
 To arrange and present data in such a way that it can be understood and used easily in Check Sheet




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See Also: Content 7 QC Tools
2. Flow Charts - 7 QC Tools
4. Check Sheet - 7 QC Tools
5. Histogram - 7 QC Tools
6. Pareto Chart - 7 QC Tools
7. Scatter Diagram - 7 QC Tools
8. Control Chart - 7 QC Tools