Check Sheet | What is Check Sheet in 7 QC Tools?

Check Sheet | Tally Sheet | What is Check Sheet in 7 QC Tools?

What is the Check Sheet in 7 QC Tools:

→ Check Sheet is a systematic method of collecting, recording and presenting the relevant data in a simple manner.
→ It can collect qualitative and quantitive data also.
→ Sometimes it is also called as a tally sheet.
→ It is a good tool of a Seven Basic Quality Control Tools.


Types of a Check Sheet

➤ Dr. Kaoru Ishikawa identified five types for Check Sheet in quality control:

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

Five Easy Steps for making a Check Sheet in 7 QC Tools:

➤ Steps for making a Check Sheet:

  1. Establish what information is needed.
  2. Determine 5W and 2H.
  3. Construction.
  4. Testing.
  5. Take the final approval for Use.
Steps for making a Check Sheet in 7 QC Tools

➥ Step 1. Establish what information is needed

→ Define what information is needed?
→ Sometimes this sheet is known as record form, data form, etc....



➥ Step 2. Determine 5W 2H:

→ 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 Sheet:

➝ CheckSheet has three types of information. 
[1] Title
[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. Testing of Sheet:

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

➥ Step 5. Final approval for using this sheet:

➝ Explain the use of this 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.
Tally Mark

5 W's of the Check Sheet in 7 QC Tools:

  1. Who will fill the data in sheet?
  2. What data to be collected? (what each check represents, an identifying batch or lot number)
  3. From where the data to be collected? Place of data collection (facility, room, apparatus)
  4. When the collection took place? - a time of data collection (hour, shift, the day of the week)
  5. Why the data is to be collected?

➤ Example of Defect Tally sheet:

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

Tally sheet (Check Sheet in 7 QC Tools)


➤ Example of Check Sheet in 7 QC Tools:

 The example is given below.


Example of Check Sheet in 7 QC Tools

Benefits of Check Sheet in 7 QC Tools:

➝ By using CheckSheet we can make data gathering simple, systematic, easy and effective.
➝ We can save time and get easily data collection in regular Manufacturing Process
➝ It is used for monitoring process performance
➝ We can use this sheet for tracking defect item, defect location and cause of the defect
➝ It is also very helpful for traceability