Attributes - statistical process control, Operation Management

Assignment Help:

Attributes - Statistical Process Control

On the other hand, some processes have outputs with attributes to be controlled where counting the number of defects is more appropriate than measuring them. The outputs can be segregated into two categories (eg pass/fail or non-defective/defective). For example, in bottle production, the design requirement may stipulate a maximum allowable number of air bubbles in the glass. Bottles which have no more than this number of bubbles would be counted as non-defective items; bottles with more than this number would be counted as defective items. Returning to the example of controlling the diameters of discs, it might be decided, perhaps for reasons of economy, that it is more appropriate to gauge the diameters rather than measure them. This figure shows how this can be achieved by use of a simple go/not-go gap gauge. Conforming discs, as shown in this figure, will be small enough to enter the 'go' gap, but too large to enter the 'not go' gap. As a result the output will be segregated into countable 'pass' and 'reject' groups.

1070_Attributes - Statistical Process Control.png

Much of what follows concerns the construction and use of statistical process control charts for both categories of output. The main treatment focuses on two complementary charts, sample mean and sample range charts, for the control of variables. This is followed by accounts of three charts for the control of attributes: proportion defective, number defective and number of defects.


Related Discussions:- Attributes - statistical process control

Explain toyota and the recalls, Discuss why organizations need to have the ...

Discuss why organizations need to have the correct performance metrics to drive quality. Think of examples in the news and their outcomes. For example: • Toyota and the recalls • B

Explain function of operational leadership, Create a scenario that depicts ...

Create a scenario that depicts how the first line leader should act to fulfil the purpose and function of operational leadership in his or her area

How to perform a decision tree analysis for problem, Mountain States Electr...

Mountain States Electric Service is an electrical utility company serving several states in the Rocky Mountains region. It is considering replacing some of its equipment at a gener

Define the term total quality management in short, Define the term total qu...

Define the term total quality management in short. Total quality management (TQM): Total quality management is the procedure of embracing a quality conscious philosophy o

Explain what kind of data would be considered a nod, What kind of data woul...

What kind of data would be considered a NOD?/ REFERENCE WHERE THE INFO CAME FROM

Different roles that need to be performed by team members, Question : (...

Question : (a) "When a team is performing at its best, you'll usually find that each team member has clear responsibilities. You'll also see that every role needed to achieve t

Work measurement, Work Measurement: Work  measurement  goes  hand in  ...

Work Measurement: Work  measurement  goes  hand in  with  method  design. Whereas the method design  are directed towards the study  of the components of a single or multiple

Identify business strategy and manufacturing strategy. , Your company has ...

Your company has been invited to look at possible improvements to the manufacturing system at Fly Fishing Reels.  Your colleague has already visited the company to collect the atta

Give example of groupthink, You have been assigned the task of assembling a...

You have been assigned the task of assembling a team to accomplish some task or project in your organization. What do you do? What is important for you to know? What do you need to

Plan a policy for scheduling vacations, Outline a policy for scheduling vac...

Outline a policy for scheduling vacations for a Health Information Management Department that provides daily, around-the-clock service and has both full time and part time employee

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd