Handout 10 Flashcards
an industry-standard methodology for measuring and controlling quality during the manufacturing process to enable continual improvement.
Statistical Process Control (SPC)
It refers to a manufacturing state where the product fully conforms with its intended design and characteristics.
Quality of conformance.
It refers to a manufacturing state where the product differs in design and characteristics due to the combined natural influences in the production process.
Chance variation/Random variation.
It refers to a manufacturing state where the product differs in design and characteristics due to an identifiable cause which can be easily eliminated.
Assignable variation/Nonrandom variation
The statistical process control aims to improve processes which yields improved products and services on a continual basis.
Continual Improvement.
The statistical process control aims to establish production standards resulting to a repeatable and predictable process that meet customer requirements.
Predictability of Process.
The statistical process control aims to maximize resources and minimize wastes in the production resulting to lower cost of production which yields lower cost of goods produced.
Lower Cost of Goods.
The statistical process control aims to eliminate output variations and impose production control resulting to lesser cost in inspection and audit of the quality assurance team of a company.
Sampling and Auditing.
a time-ordered plot of sample statistics that aims to monitor the causes of output variation.
Control Chart
The control charts are designed for speed which makes it useful in the industrial aspect of a business.
In industrial settings
The control charts are designed for promoting work efficiency which makes it useful in the campaigns of charities and various organizations.
In non-profit organizations.
The control charts can be used to examine the percentage of monthly expenditures of a given company.
Budget
The control charts can be used to monitor the retention rate of the human resource department of a given company.
Retention rate.
Through the use of a control chart a company will be vigilant to negative feedbacks of the customers that will help them determine their possible areas for improvement.
Customer surveys.
The top management must show full support in the implementation of SPC since it requires spending money, utilizing human resources, changing the organization’s culture, and hiring employees with new skills.
STEP 1: Commit to SPC.
The top management must form a cross-functional team that will oversee the implementation and execution of SPC in the organization.
STEP 2: Form an SPC committee.
The top management must provide basic training in statistical data for the SPC committee
STEP 3: Train the SPC committee
The SPC committee through the help of a consultant must set objectives for the program.
STEP 4: Set SPC objectives.
The SPC committee must select a few pilot processes for the initial implementation of SPC.
STEP 5: Identify target processes.
The SPC committee together with the management must provide extensive training for the operators and teams who will be directly involved with the collection, plotting, and interpretation of SPC data.
STEP 6: Train appropriate operators and teams.
The in-house experts must ensure that all the measuring equipment that will be used, from basic calipers to complex micrometers, are properly calibrated and certified for accurate collection of data.
STEP 7: Ensure repeatability of methods.
The management must delegate responsibility
in maintaining SPC control charts, collecting, and plotting data to the operators since they are
directly involved in the process.
STEP 8: Delegate responsibility to the operators.
The SPC committee together with the operators must create graphical representation of the entire production process.
STEP 9: Flowchart the process.
The SPC committee must formulate a causeand-effect diagram listing all the factors that might impact the result of the output during the
production process
STEP 10: Eliminate the special causes of variation
The in-house experts must develop the appropriate control chart that will be used to monitor the different steps in the production process.
STEP 11: Develop control charts.
The process operator must take the sample data and plot them on the control chart at regular intervals.
STEP 12: Collect and plot SPC data
The SPC committee must determine whether the
established process and standards are effective in achieving continual improvement
STEP 13: Determine process capability.
