What does quality help firms do? Show
Quality helps firms increase sales and reduce costs, both of which can increase profitability. Sales Gain: improved response, flexible pricing, and improved reputation) Reduced costs: (Increase productivity and lower rework, scrap, and warranty costs) The totality of features and characteristics of a product or service that bears on its ability to satisfy stated or implied needs. Or informal “quality lies in the eyes of the beholder” Product quality vs. manufacturing based quality Manufacturing quality: Quality means conforming
to standards and making it right the first time. What are the implications of quality?
What is the Malcolm Bridge National Quality Award? Award for US based global companies that excel in quality. Four major categories of costs associated with quality are?
Costs associated with reducing defective parts or services. Ex. Training, quality improvement programs Costs related to evaluating products, parts, processes, and services. Ex. testing labs/inspections) Costs that result from production of defective parts or services before delivery to customer (ex. Rework, scrap, and downtime. External facilities costs Costs that occur after delivery of defective parts or services (ex. Rework, returned goods, liabilities, lost goodwill, costs to society) Refers to the quality emphasis that encompasses the entire organization, from supplier to customer. Who is W. Edwards Demings? created the 14 points for implementing quality improvement. What are the seven concepts of TQM
What is deming’s 14 points for implementing quality improvement?
Plan-To-Do-Checklist (PDCA) for Continuous Improvement Plan, Do, Check, Act is Walter Shewhart’s version of continuous improvement What are the two definitions of Six Sigma? (Statistical sense and program sense) Two means in TQM:
A comprehensive system - a strategy, a discipline, and a set of tools - for achieving and sustaining business success. What is the Six Sigma improvement model known as DMAIC? Defines, Measures, Analyses, Improves, Controls the improvement of operations. What are the set of seven tools of SIX sigma? Check sheets, scatter diagram, cause-and-effect diagrams, Pareto charts, flowcharts, histograms, and statistical process control. What is employee empowerment? Involving employees in every step of the production process. A group of employees who meet regularly to solve work-related problems. Involves selecting a demonstrated standard of products, services, costs, practices that represent the very best performance for processes or activités very familiar to your own. What are the steps for benchmarking
What are the typical measures used in benchmarking Percentage of defects, costs per unit or per order, processing time per unit, service response time, return on investment, customer satisfaction rats, and customer retention rates. Systems designed to produce or deliver goods just as they are needed. What are the three ways JIT is related to quality?
Genichi Taguchi’s three concepts aimed at improving both product and process quality.
Products are products that can be produced uniformly and consistently in adverse manufacturing and environmental conditions. Philosophy of continuous improvement to bring the product exactly on target. Quality-loss function (QLF) a measure that attempts to estimate the cost of devoting from the target value. A check sheet is any kind of form that is designed for recording data. Helps find facts or patterns that may aid subsequent analysis. Show the relationship between two measurements. Cause and Effect Diagram aka Ishikawa diagram or fish-bone chart Four Ms are the cause: Material, Machinery/Equipment. Manpower, and method. Branch with individual causes associated with each major cause. A method of organizing errors, problems, or defects to help focus on problem-solving efforts. Created by Vilfredo Pareto. Sums the complaints and notes them by category in decreasing order along the horizontal axis of table. Graphically present a process or system using annotated boxes and interconnected line. Great for trying to improve the process. Shows the range of values of a measurement and the frequency with which each value occurs. Shows Frequency and variation of values. Statistical Process Control (SPC) Monitors standards, make measurements, and takes corrective actions as a product or service is being produced. are a graphic presentation of data over time that show upper and lower limits for the process we want to control. Can involvem measurement, tasting, touching, weighing, or testing product. Goal is to detect a bad process immediately. Only find deficiencies and defects. OMs need to know when to inspect and where to inspect. Inspections can take place at any of the following points.
Controlling or monitoring at the point of production or purchase - at the source. (Employee empowerment). Poka-yoke (Source Inspection) A foolproof device or technique that ensures production of good units every time. Ex. French fry boxes, gas diesel pump nozzles differentiating shape Checklists (source inspection) Type of poka-yoke to help ensure consistency and completeness in carrying out a task. What is the main goal for source inspections? To provide guarantee of 100% good product or service at each step of a process. Classifies items as being either good or defective. Does not address degree of failure. Measures such dimensions as weight, speed, size, or strength to see if the item falls within an acceptable range. What are the determinants of service quality Reliability, responsiveness, competence, access, courtesy, communication, credibility, security, understanding/knowing the customer, tangibles Service recovery strategies Train and empower employees to immediately solve problems. LEARN rountine which is an acronym for Lister, Empathize, Apologize, React, Notify Useful for evaluating preformance. Provides direct comparisons between customer service expectations and the actual service provided. Focus on the gaps. Which of the following categories of costs is related to evaluating products processes parts and services?Prevention costs - reducing the potential for defects.. Appraisal costs - evaluating products, parts, and services.. Internal failure costs - producing defective parts or service before delivery.. External failure costs - defects discovered after delivery.. Which of the four major categories of quality costs is the highest and most difficult to estimate?A. Among the four major categories of quality costs, external failure costs are the most difficult to quantify.
In which of the four major categories of quality costs would the costs associated with scrap and rework belong?Cost of Poor Quality (COPQ) is the cost associated with providing poor quality products or services to the customer. In other words, it is the total financial losses incurred by the company due to performing incorrect things. For example, scrap, rework, repair, warranty failure.
Which cost of quality is hardest to evaluate?The four costs are internal failure, external failure, prevention, and appraisal. The hardest category to estimate is external failure costs, or costs that occur after delivery of defective parts or services. These costs are very hard to quantify. State the American Society for Quality's definition of quality.
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