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Elements and Performance Criteria

1. Obtain data for process capability study
   • Identify the process requiring capability analysis, including relevant procedures.
   • Identify customer specifications for product or service.
   • Obtain process capability data.
2. Analyse data
   • Identify assignable causes of variation in liaison with relevant personnel.
   • Develop solutions to eliminate variation due to assignable causes in liaison with relevant personnel.
   • Analyse random variations for possible causes in liaison with relevant personnel.
   • Confirm causes of random variation.
   • Develop solutions to reduce random variations in liaison with relevant personnel.
3. Take action to improve process capability
   • Develop plans to implement solutions.
   • Liaise with relevant personnel to implement solutions.
   • Gain necessary approvals, as required.
   • Monitor implementation and make adjustments, as required.
   • Determine new/revised process capability.
   • Implement revised process capability regime.

Range Statement

This field allows for different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included.
Competitive systems and practices include one or more ofL	lean operations agile operations preventative and predictive maintenance approaches statistical process control systems, including six sigma and three sigma Just in Time (JIT), kanban and other pull-related operations control systems supply, value, and demand chain monitoring and analysis 5S continuous improvement (kaizen) breakthrough improvement (kaizen blitz) cause/effect diagrams overall equipment effectiveness (OEE) takt time process mapping problem solving run charts standard procedures current reality tree.
Process capability data includes one or more of:	customer requirements for product or service process stability (control chart) performance other charts and data.
Procedures (written, verbal, visual, computer based, etc.) include one or any combination of:	work instructions standard operating procedures (SOPs) safe work method statements formulas/recipes batch sheets temporary instructions any similar instructions provided for the smooth running of the plant.

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Performance Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy the requirements of the elements and performance criteria and include the ability to determine and improve the capability of one (1) or more processes and to:

obtain relevant data

analyse the data to determine random and non-random variation

develop solutions to reduce variation

develop and monitor the implementation of plans aimed at reducing variation

make further improvements as appropriate and determine capability of improved process.

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Knowledge Evidence

Must provide evidence that demonstrates sufficient knowledge to interact with relevant personnel and be able to determine and improve capability, including knowledge of:

statistical methods of processing and describing data

data collection methods

data processing techniques required to establish variability and normal distribution

calculate three sigma or six sigma process capability, as relevant

random and non-random results and processes for recognition of assignable causes

causes of different types of non-random results

causes of random variation

process understanding sufficient to translate the data into variations in the process and determine methods of controlling them.

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