Check Sheet in 7 QC Tools

→ It is a systematic method of collecting, recording and presenting the relevant data in a simple manner for analysis of the process and it is also known as a "Tally Sheet".
→ It can collect qualitative and quantitive data also.
→ It is one of the most popular tools of 7 QC Tools for process improvement.

Different Types:

→ Dr. Kaoru Ishikawa identified five different types which are mentioned below.

Process performance,
Defect item,
Defect location,
Task conformation (Related to traceability) etc...
Defect cause

Steps for Making a Check Sheet in 7 QC Tools:

→ The five steps are mentioned below.

Establish what information is needed.
Determine 5W and 2H.
Construction.
Testing.
Take the final approval for Use.

Step 1. Establish what information is needed

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

Step 2. Determine 5W 2H:

→ Why is the data needed?
→ What type of information 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 information 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.

Examples:

➝ For a better understanding refer below picture.
➝ In this example, we have mentioned the day-wise count of the defect and at the end of the week analyze the defect to take appropriate action to eliminate those.

➝ The example of the defect collection tally sheet is mentioned below.
➝ In this example, we have counted the frequency of various defects at the time of checking the product in ongoing production.

Benefits:

➝ By using this 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 for different purposes like counting, tracking, etc.
➝ It is also very helpful for traceability

👉 Also Read:

1. Flow Chart | Process Flow Diagram | Types & Examples

2. Cause & Effect Diagram (Fishbone or Ishikawa)

3. 7 QC Tools for Process Improvement

4. Histogram | Different Types of Patterns & Examples

5. Pareto Chart | Example & Principles

6. Scatter Diagram | Types & Examples

7. Control Chart | Types & Examples

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