Six Sigma Tool Navigator: The Master Guide for Teams
| AKA | Tally Sheet |
| Classification | Data Collecting (DC) |
Tool description
A checksheet is a simple form designed to record and quantify facts and data over a period of time. The construction of the checksheet should be tailored to collect data on specific categories and location of defects, frequency of events, or possible causes.
Typical application
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To observe an operation and record specific data over a period of time.
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To acquire a short-term observation of process variability on the current situation.
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To identify what potential problem should be addressed first.
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To confirm the effects of problems.
Problem-solving phase
| → | Select and define problem or opportunity |
| → | Identify and analyze causes or potential change |
| Develop and plan possible solutions or change | |
| → | Implement and evaluate solution or change |
| Measure and report solution or change results | |
| Recognize and reward team efforts |
Typically used by
| 3 | Research/statistics |
| Creativity/innovation | |
| Engineering | |
| Project management | |
| 2 | Manufacturing |
| Marketing/sales | |
| 4 | Administration/documentation |
| Servicing/support | |
| 1 | Customer/quality metrics |
| Change management |
before
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Data Collection Strategy
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Observation
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Surveying
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Interview Technique
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Focus Group
after
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Stratum Chart
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Histogram
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Frequency Distribution (FD)
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Box Plot
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Pareto Chart
Notes and key points
Types of frequently used Checksheets:
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To count occurrences (Tally
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To measure activities (amounts, time, etc.)
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To locate problems or defects (Defect Map)
Step-by-step procedure
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STEP 1 Identify data to be collected. See example Customer Complaints.
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STEP 2 Design checksheet for easy data capture.
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STEP 3 Collect data for the stated time period. Example: 20 days.
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STEP 4 After a specified period, total the check marks and input this data into the problem-solving process. Date the checksheet.
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STEP 5 Note: For another type of checksheet, see the defect map approach.
Example of tool application
Customer Complaints
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