green belt review cards Flashcards
value stream mapping follows..
the flow of material and information in and out of the process
VSM, always start with _____ and ______
leveling of process 1 input and the pull of the furthest out constraint.
def cycle time (CT)
start and stop… how long to get it done
def change over time (CO)
SMED and TAT are the same,
SMED and TAT
single minute exchange of die and turn around time
equation for Takt time is…
available time to do work/ customer demand
Takt time relation to cycle time….
cycle time should be equal to or less than takt time
establish this for everything!
Process improvement function equation..
f(x)=y +E
process(input)=output + errors
solving for E to eliminate
Muda
Muri
Mura
7 wastes
overworking a person or machine
unevenness in workflow (batch or push)
What is the fix for Mura?
Heijunka… process leveling (fifo, one piece flow, pull)
xxxoooxxoxoxox goal…
x= heavy labor, o = light labor. get a balance for each days activity for a steady flow
def of station
a dedicated area designed for a specific work function
def of work cell
…a collection of stations
def of motion economy
Motion economy is the process of minimizing the physical and perceptual loads imposed on people engaged in any type of work, whether it be in the office, the shop floor, the kitchen, or at the driving wheel.
extra: What is the principle of motion?
The biomechanical principle of motion relates to linear motion, velocity, speed, acceleration, and momentum. Motion is a movement that results from a force. … However, in order to properly apply velocity, speed, acceleration, and momentum the other types of motion should also be defined.
def practice of standardization
standardized SOP,
Train
Audit (kamishibai= story)
most critical 3 tools for success
process metric is…
smaller, these are functions and steps to accomplish result.
outcome metric is…
larger, this is the final result sought after.
Pareto chart, cause and effect, 5 Why are examples of _______ analysis
root cause analysis
Pareto chart orange line = ?
the cumlative percentages of all errors reported
Pareto chart blue bars = ?
the actual number of incidnets in each category
Pareto chart, orange line blue bar intersect= ?
the items to the left are the significant few and the ones for initial focus of effort (insignifcant few are the others to the right)
(Six sigma)D M A D V= ?
define, measure, analyze, design, verify. used for new problems.
(six sigma) Why does dmaic deteriorate over time?
after the temporary team has achieved its success it disbands and those in maintaining mode are less adept at keeping the new proceeses running efficiantly. there is no Lean process included,
control chart components=?
UCL and LCL upper and lower control limits. these limits are determined by the data. the center line is the mean (average), each deviation from the center is one sigma…
Histogram=?
gives the bell curve. set USL upper spec limit and LSL lower spec limits. set by customer. view is like looking down on the control chart from the top.
Scatter plot=?
deals with data point correlations. Positive coor= Line of best fit. Negative Coor=, No coor.
name the three central tendencies.
mean= the average median= the middle (if no clear middle, add thetwo center numbers and divide by 2) mode= most frequent (eliminate outlyers)
Charts: Box Whiskers=?
make date points appear in quartiles, view is like the top of a histogram. the target is to have a shorter and tighter bell curve.
