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43 Cards in this Set
- Front
- Back
Phillip B Crosby |
Author of Quality is Free about quality control |
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Phillip B Crosby |
Created 4 cardinal rules of quality management. |
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4 cardinal rules of Quality Management |
1) performance std should be set as 0 defects 2) quality is the same thing as conformance to requirements 3) quality is achieved by preventing defects 4) measure of quality's value is the cost of non conformance |
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George D Edwards (2) |
First president of American Society for Quality Instumental in advancing Bell Telephone's quality assurance program |
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W. Edwards Deming (4) |
-Father of quality control -Used statistical methods to promote quality control -differntiated common cause and special cause variation -7 deadly sins in workplace and 14 pts for management |
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Armand Feigenbaum |
Promoter of total quality management -outlined 4 key actions to implement TQM programs -Nine M's of quality |
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4 TQM key actions |
1) establishing stds 2) measuring conformance to these standards 3) resolving issues hindering conformance 4) continuously planning for improvement |
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Joseph Juran |
emphasized idea that quality control always should be from perspective of customer |
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Kaoru Ishikawa |
One of main promotors of total quality contol in Japan -Credited with developing the quality circle |
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Quality Circle |
Groups work together rather than lone employees to resolve problems |
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Genichi Taguchi |
Wrote Design of Experiments |
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Standard Deviation |
Amount of variation between the members of the data set |
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Six Sigma intention |
To improve all processes such that 6 std devs will fit between the mean and both upper and lower acceptable limits |
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Process Cycle Efficiency |
Used to determine the most useful and positive ways to improve cycle time |
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Process Cycle Efficiency is most used in what phase |
Analyze |
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How to calulate Process Cycle Effciency? |
Divide value-added time by process lead time |
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How to calculate Process lead time? |
divide number of items in a process by the number of times the process is completed in an hour. |
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Little's Law |
A process can attain a max process cycle efficiency of 100% if all the activities in the process add value |
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What % efficiency do processes approach after implementation of lean stategies? |
25% |
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Lean |
System for decreasing waste and increasing cycle times and quality |
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Tools of lean (5) |
5s, velocity, spaghetti diagrams, level loading, process cycle efficiency |
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Strategy of Lean |
identify activities that add value and activities that dont |
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Lean philosophy emphasizes 3 areas |
-transparaency, velocity, and value |
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Transparancy |
Easy access and useful info. When processes can be observed and measured |
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Velocity (aka) |
AKA as flow. speed with which processes are completed |
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Ultimate way of measuring velocity? |
interval between a customer's order and the delivery of the good and service |
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Value |
set of qualities or characteristics for which a customer is willing to pay |
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Value is always assessed from perpsective of who? |
Customer |
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Inventory and work-in-progress are considered what in lean? |
Drags rather than assets. A business will try to keep very little inventory on hand and instead strive to respond quickly to customer orders without relyin on the storage of work-in-progress |
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What are some strategies for improving velocity? |
-increase # of completions per hr -eliminate redundant or unnecessary process steps -decrease waiting time -decrease necessity of moving resources or personnel |
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Kaizen Philosophy |
constant efforts to improve quality of business;. These improvements are continious and subtle and are small and frequent. Based in insights of lower level employees |
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Define Flow in Kaizen |
quality of continuous process accomplishment. MAterials and info do not wait between activities |
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Define Pull in Kaizen |
each activity in a process shuld recieve only the necessary materials when subsequent activities are demanding the process to be completed |
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Define Perfection in Kaizen |
ultimate goal of continious improvement. Approached by elimating waste and streamlining processes |
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Poka-yoke AKA |
Error Proofing |
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Error Proofing |
system for preventing defects in production processes |
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Poka-yoke philosophy |
preventing errors is better than detecting them |
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Poka yoke forms (3) |
-auto-correction systems(reflexively adjust to changing external systems) -automatic shutdown (stops a machine or process if conditions for an error exist) -warning signal (presence of a human operator that alerts when there is an error ) |
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Value stream mapping |
communication tool. It depicts flow of materials and infor throung an organization |
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What are the 2 versions of Value mapping Streaming? |
current state and future state |
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Value stream mapping should include following information...(5) |
-cycle time, down time, inprocess inventory, path of information, path of materials |
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Theory of constraints |
approach to improving processes by focusing on their most problematic areas |
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Difference between DMAIC and DMADV |
DMADV if product is created from scratch and DMAIC for improvements on exsisting processes |