Final Exam - Small Study Guide Flashcards
bullwhip effect
◦Causes large order size◦You want short order sizes
What are the two thinsg that cause a bullwhip effect
‣ Stockout and misdue date
What are the 2 things that reduces bullwhip effect
◦Short delivery and short order sizes reduces bullwhip effect
Aggregate production plan
◦First step◦Beginning of everything◦More than 1-2 year
◦Production activity control
‣ Produces their own shit
◦Purchase planning and control
‣ Buy it
Chase strategy
◦Chasing sales◦Produce whatever the sale is◦Whatever the supplier is they will give that exact amount.◦It is stable◦If its high skill labor it will not work for you
Level strategy
◦Employment level is stable◦Inventory fluctuates
System nervousness
◦ Not enough time to react
◦ Lead capacity
‣ Need to built a new facility to have more production
◦Lag capacity
‣ Produce no matter what happens‣ Keep doing what you’re doing regardless what you’re doing.
◦Best of breed
‣ Pick the best software
◦Single integrator solution
‣ Pick the company• For example, pick oracle for everything
Master production schedule
◦ Independent◦Quality and timing◦16 to 18
Bill of material
◦What component parts you need for the finish product
Material requirement planning◦This is going to be definitely going to be on the exam◦What are the three things you need [exam]
‣ 1. Master production schedule‣ 2. Bill of material‣ 3. Inventory status
Material requirement schedule
◦Dependent◦It calculates the component parts◦Exact numbers
◦Flow time
◦Flow time‣ When you produce one product
◦Make span
‣ How much time it takes to product to produce match
◦Lateness
◦Lateness‣ Positive and negative
◦Tardiness
◦Tardiness‣ Only Positive
◦Which one can’t be negative?
Tardiness
◦Shortest processing time
◦Shortest processing time‣ Whatever you can finish the quickest
◦Earliest due date
◦Earliest due date‣ Whatever has the earliest due date
◦PDCA stands for
Plan do check act◦PDCA
Plan do check act
Plan do check act◦Continuous improvement and control
Total quality approach
Total quality approach◦ It’s top down approach◦Starts ceo and goes down
ISO 9000
ISO 9000◦Certification quality standard in place◦It’s not required◦It’s good to make sure you have a good supplier
Total cost of quality
- Control cost2. Failure cost
[notes] Control cost (2)
Control cost (2)1. Prevention cost•‣ 2. Appraisal cost• Buying new machines for quality• Enhancing something
Failure cost (2)
When your product fails‣ 2 types of failure cost• 1. External◦When you find a failure before it ships• 2. Internal◦You find In the company
quality control tools
◦Histograms◦Excel◦Etc◦Tools
◦ Kaizen
◦ Kaizen‣ Small steps for continuous improvement
◦Poke yoke
◦Poke yoke‣ Design your product until its fail proof
Six sigma
◦Approach you use seeks and finds for defects and errors◦Write formula on your notecards
In process control
In process control◦ You check your production once in a while◦Every hour you check 10 out of 50 items
[notes] Out process contorl
Out process contorl◦If you check it and its producing defects its out of control‣ Get more notes
Finished goods control
Finished goods control◦ Check the goods when they are done
Statistical process control
Statistical process control◦Definition: a methodology for monitoring quality and manufacturing control◦Moderate quality and eliminates causes of variation
◦Common (natural) cause variation
◦Common (natural) cause variation‣ Happens regardless of the process‣ Can’t change nothing about it
◦Special (assignable) cause variation
◦Special (assignable) cause variation‣ Huge variation in the product or service‣ You can trace the variation
◦Processwhat type of variation
◦Process‣ Common variation
◦process out controlwhat type of variation
◦process out control‣ Common and special variation
◦Variable
◦Variable‣ Measures on a continuous scale
◦Attribute
◦Attribute‣ Its a yes or no
‣ X bar
‣ X bar• Central tendency
‣ R chart
‣ R chart• Dispersion
‣ P-chart
‣ P-chart• Measures Proportions of defects
‣ C-chart
‣ C-chart• Defects per unit
Just in time
Just in time◦JIT◦Eliminating waste or lean operating systems◦Ship directly to point of use‣ Need to use immediately◦short orders and more frequently
Visual control
Visual control◦Digital or cutboard◦Thing that tells you to keep producing or stop producing
Lean six sigma definition
Lean six sigma definition ◦Eliminate waste
Lean six sigma ◦3 things
Lean six sigma ◦3 things‣ 1. High quality,‣ 2. small variation‣ 3. Continuous improvement
Pull system
Pull system◦Strategy to reduce waste◦You use this for JIT
• Must importance of JIT◦Advantage (2)
• Must importance of JIT◦Advantage (2) ‣ 1. Improve and enhance your operations‣ 2. Continuous improvement and waste elimination
