SPC (STATISTICAL PROCESS CONTROL) CHECKLIST

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--- PROCESS DEFINITION & SELECTION ---
[ ] Process Being Monitored? (Machining, Assembly, Welding, Painting, Other)
[ ] Process ID/Name
[ ] Brief Description of the Process
[ ] Sample Size (n)
[ ] Measurement System? (CMM, Calipers, Micrometer, Visual Inspection, Other)
[ ] Rationale for Selecting this Process for SPC
[ ] Frequency of Measurement/Sampling

--- DATA ACQUISITION & RECORDING ---
[ ] Sample Size (n)
[ ] Sampling Frequency (samples per unit of time)
[ ] Measurement System (e.g., calipers, micrometer, gauge) (Calipers, Micrometer, Go/No-Go Gauge, Coordinate Measuring Machine (CMM), Other)
[ ] Measurement Procedure Description
[ ] Date of Data Collection
[ ] Time of Data Collection
[ ] Operator ID (if applicable)
[ ] Notes on Data Acquisition (e.g., equipment issues, operator concerns)
[ ] Calibration Certificate (if applicable)

--- CONTROL CHART CREATION & SETUP ---
[ ] Process Characteristic Being Monitored (Length, Diameter, Weight, Surface Roughness, Color, Other (Specify in LONG_TEXT))
[ ] Description of Process Characteristic (for 'Other' selection)
[ ] Number of Data Points for Initial Control Limit Calculation
[ ] Subgroup Size (if applicable)
[ ] Type of Control Chart Selected (X-bar and R Chart, X-bar and S Chart, Individuals Chart, p-Chart, np-Chart, c-Chart, u-Chart)
[ ] Rationale for Chart Type Selection
[ ] Raw Data File (for Control Chart Setup)
[ ] Date Control Chart Established

--- CONTROL LIMIT VERIFICATION & ADJUSTMENT ---
[ ] Initial Subgroup Size Used for Control Limit Calculation
[ ] Number of Data Points Used for Initial Control Limit Calculation
[ ] Method Used to Calculate Initial Control Limits (e.g., X-bar and R, X-bar and S) (X-bar and R, X-bar and S, Moving Range, Other (Specify in Long Text))
[ ] If 'Other' was selected for calculation method, please specify.
[ ] Date of Initial Control Limit Validation
[ ] Number of Valid Data Points Collected for Control Limit Verification
[ ] Was there any evidence of non-random variation during verification? (Yes, No)
[ ] If 'Yes' to non-random variation, describe the nature of the variation and corrective actions taken.
[ ] Were Control Limits Adjusted based on Verification? (Yes, No)
[ ] If yes, describe the changes made to the Control Limits and justify the change.

--- ONGOING MONITORING & CHART INTERPRETATION ---
[ ] Date of Chart Review
[ ] Time of Chart Review
[ ] Number of Points Reviewed
[ ] Chart Stability Assessment (Stable/Not Stable) (Stable, Not Stable)
[ ] Summary of Observed Trends/Patterns
[ ] Number of Points Outside Control Limits
[ ] Description of any identified Special Causes
[ ] Corrective Actions Taken (if applicable) (No Action Required, Investigated and documented, Corrective Action Implemented)
[ ] Reviewer Signature

--- OUT-OF-CONTROL ACTION & INVESTIGATION ---
[ ] Describe the out-of-control point (value, sample size, date/time).
[ ] Date of Out-of-Control Point
[ ] Time of Out-of-Control Point
[ ] Potential Causes Investigated (list all considered)
[ ] Root Cause Category (Select all that apply) (Material, Equipment, Method, Manpower, Environment, Measurement System)
[ ] Detailed Description of Root Cause Determination
[ ] Corrective Actions Taken (Specific actions to address root cause)
[ ] Sample Size of Next Measurement After Correction
[ ] Verification of Corrective Action Effectiveness (how was it validated?)
[ ] Signature of Investigator

--- PROCESS IMPROVEMENT & OPTIMIZATION ---
[ ] Describe the identified process improvement opportunity (based on SPC data).
[ ] What is the target improvement in the key process characteristic (e.g., reduction in defects, increase in throughput)?
[ ] Detail the proposed actions to address the improvement opportunity.
[ ] What is the priority level of this improvement action? (High, Medium, Low)
[ ] Planned start date for the improvement action.
[ ] Target completion date for the improvement action.
[ ] Which SPC charts were impacted by the issue?
[ ] Document any statistical analysis supporting the proposed changes.

--- DOCUMENTATION & RECORD KEEPING ---
[ ] Date of Control Chart Creation
[ ] Time of Data Collection (Start)
[ ] Summary of Out-of-Control Events and Corrective Actions
[ ] Control Chart Image (Current)
[ ] Number of Samples Collected Per Shift/Period
[ ] Notes on Calibration Records (Equipment Used)
[ ] Review Frequency (Control Charts) (Daily, Weekly, Monthly)
[ ] Reviewer Signature
[ ] Description of any process changes implemented and their potential impact on SPC.

--- TRAINING & COMPETENCY ---
[ ] Number of Employees Trained in SPC Principles
[ ] Date of Last SPC Training Session
[ ] Training Delivery Method (e.g., Classroom, Online, On-the-Job) (Classroom, Online, On-the-Job, Hybrid)
[ ] Summary of SPC Training Curriculum
[ ] SPC Roles & Responsibilities Covered in Training? (Operator, Technician, Engineer, Supervisor)
[ ] Which SPC tools were covered? (Control Charts (X-bar and R charts), Pareto Charts, Histograms, Scatter Plots, Cause-and-Effect Diagrams (Fishbone), Capability Analysis)
[ ] Documentation of Training Assessments/Quizzes
[ ] Frequency of Refresher Training? (Annually, Bi-Annually, As Needed)

--- SOFTWARE & TOOL VALIDATION ---
[ ] Software Version Number
[ ] Last Validation Date
[ ] Description of Validation Process
[ ] Number of Data Points Simulated/Tested
[ ] Validation Status (Passed, Failed, Pending)
[ ] Validation Report (PDF/Excel)
[ ] Details of Any Failures & Corrective Actions
[ ] Data Integrity Check - Pass/Fail (Pass, Fail)

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