A Check points is a structured, prepared form for collecting and analyzing attribute data. You can use this generic tool wide variety of purposes. This tool is also called tally sheet .
When to Use :
When data can be observed and collected repeatedly by the same person or at the same location.
When collecting data on the same frequency or patterns of events, problems, defects, defect location, defect causes, etc.
1. Decide the observed event or problem. (for example telephone interruptions)
2. Determine the collected data and for how long. (lets say 5 days)
3. Design the form. Set it up so that data can be recorded simply by making check marks .
4. Label all spaces on the form.
5. Each time the targeted event or problem occurs, record a check mark on the check sheet.
The figure below shows a check sheet used to collect data on telephone interruptions. The talley marks were added as the operator collected data over one week.