Preview

push vs pull

Satisfactory Essays
Open Document
Open Document
1578 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
push vs pull
Push and Pull Production Systems

You say yes.
I say no.
You say stop. and I say go, go, go!
– The Beatles

© Wallace J. Hopp, Mark L. Spearman, 1996, 2000

1

http://factory-physics.com

The Key Difference Between Push and Pull
Push Systems: schedule work

Pull Systems: authorize work

releases based on demand.
• inherently due-date driven
• control release rate, observe WIP level © Wallace J. Hopp, Mark L. Spearman, 1996, 2000

releases based on system status.
• inherently rate driven
• control WIP level, observe throughput http://factory-physics.com

2

1

Push vs. Pull Mechanics
PUSH

PULL

(Exogenous)
Schedule

(Endogenous)
Status

Production Process

Job

Job

Push systems are inherently make-to-order. © Wallace J. Hopp, Mark L. Spearman, 1996, 2000

Production Process

Pull systems are inherently make-to-stock. 3

http://factory-physics.com

Pulling with Kanban
Outbound
stockpoint

Production cards Completed parts with cards enter outbound stockpoint.

When stock is removed, place production card in hold box.

© Wallace J. Hopp, Mark L. Spearman, 1996, 2000

http://factory-physics.com

Outbound stockpoint Production card authorizes start of work.

4

2

Push and Pull Line Schematics
Pure Push (MRP)

Stock
Point

Stock
Point

...

Pure Pull (Kanban)

Stock
Point

Stock
Point

...
…

Stock
Point

CONWIP

Authorization Signals
© Wallace J. Hopp, Mark L. Spearman, 1996, 2000

Stock
Point

...

Full Containers

http://factory-physics.com

5

Push/Pull Interface
Eliminate: entire portion of cycle time by building to stock.
Requirements:
• Level demand.
• Relatively few distinct parts.
• Relatively constant product mix.

Implementation:
• kanban
• late customization (postponement)

© Wallace J. Hopp, Mark L. Spearman, 1996, 2000

http://factory-physics.com

6

3

Example - Custom Taco Production Line
Continue Reading
View Writing Issues

You May Also Find These Documents Helpful

  • Satisfactory Essays

    Physilogy
    • 266 Words
    • 1 Page

    Physilogy

    1. Explain one way in which facilitated diffusion is the same as simple diffusion and one way in which it differs.…

    • 266 Words
    • 1 Page
    Satisfactory Essays
    Read More
  • Satisfactory Essays

    Difference and Plan
    • 345 Words
    • 2 Pages

    Difference and Plan

    Describe the similarities and differences among the major types of health plans. Do you believe any one plan offers greater financial or coverage benefits to either a consumer or a provider? Explain your answers.…

    • 345 Words
    • 2 Pages
    Satisfactory Essays
    Read More
  • Satisfactory Essays

    Compare and Contrast Pi and Chuck
    • 1582 Words
    • 7 Pages

    Compare and Contrast Pi and Chuck

    There is not one key to survival; no it’s more like the key ring to survival. The first key I want to talk about is strength, but there is more to strength then just the physical strength there is also a need for emotional strength. “Its life’s only true opponent. Only fear can defeat life.” Martel, Yann. "56." Life of Pi: A Novel. New York: Harcourt, 2001. 203. Print. This is why the mastery of fear can help you survive. Love which is almost an exact opposite of fear but goes hand in hand with hope; alas there are many forms of love that can bring about the needs to survive, this helps Pi and Chuck near the end of the trials. Knowing you are at the top, or that you are the alpha gives you strength and courage to carry on, both Chuck and Pi need to come to this realization in order to survive. This key ring of characteristics does not stop here; I have only a chosen a select few. Although both Pi and Chuck survived they accomplished this feat using the same characteristics but in a unique way differing from the other. Emotional and physical strength will determine your ability to survive as it did in the stories of Pi and Chuck.…

    • 1582 Words
    • 7 Pages
    Satisfactory Essays
    Read More
  • Good Essays

    differnces
    • 576 Words
    • 2 Pages

    differnces

    Frederick Douglass and Harriet Jacobs are two authors with very similar backgrounds. Both Douglass and Jacobs illustrate the tension involving being African American in a time where slaves did not have any rights, and when they were treated like property instead of a humans. Each of the slaves had different experiences with slavery, but one thing in common: share their accounts through autobiography on how slavery greatly changed their lives. The experiences, memories and treatment in any situation are viewed upon differently between a man and a woman. Obvious in the case of slavery, the two sexes were treated differently and so therefore their recollections of such events were-different…

    • 576 Words
    • 2 Pages
    Good Essays
    Read More
  • Satisfactory Essays

    Holding things together
    • 270 Words
    • 2 Pages

    Holding things together

    When Lucy was home, Alfred had already mowed the grass for Lucy, which is the first time he helped on house work.…

    • 270 Words
    • 2 Pages
    Satisfactory Essays
    Read More
  • Powerful Essays

    Control and Co-Ordination
    • 3202 Words
    • 13 Pages

    Control and Co-Ordination

    The human body is made up of many cells which form and create different tissues and organs within the body. Control and coordination are required to enable all functions within the body to work accordingly and appropriately at the specific times required. The system within the body which assists to control and coordinate the functioning of all the systems is called the nervous system. The nervous system works alongside the endocrine system allowing communication and coordination between the many organs and systems within the human body. This allows them to function correctly, and have the ability to respond to stimuli when needed. The nervous system has two main systems within itself. These are the central nervous system known as CNS, and the peripheral system known as PNS. The central nervous system is often referred to as the ‘controller’ within the human body; the CNS consists of the brain and the spinal cord. The peripheral nervous system is often referred to as the ‘reactor’ within the human body, as this includes the sensory and motor nerves, connecting the CNS with the sense organs, glands and muscles within the body.…

    • 3202 Words
    • 13 Pages
    Powerful Essays
    Read More
  • Good Essays

    The Effort Effect
    • 285 Words
    • 2 Pages

    The Effort Effect

    In the “Effort Effect” of Stanford Magazine, Marina Krakovsky writes about being born with greatness vs. learning the skills of becoming great. She discusses how the idea of belief about innate ability and that nothing comes to ones being with out hard work. This is a controversial topic that is brought to attention throughout the article including the study of the UK soccer team by Professor Dweck exclaims, the soccer culture said, “The most talented of players are born, not made.” Marina’s purpose in writing the article is to enlighten her outlook on the research examinations she carried out amongst the students in schools on performance and learning, fixed and growth mind-sets, and culture. The study in school exuberated the thought that capable college students that hit a roadblock lacked a sense of ability, as commonsense rendered that the idea about ability influences self-confidence. All of these supporting details help make the argument that we can benefit from a growing mindset; settling for fail equals fail or looking at failure as an opportunity to learn from and strive beyond. The ability that something needs to be proven or developed falls in to play. According to Marina Krakovsky, “You can’t simply remove the fixed mindset and replace it with the growth mindset.” Essentially she’s saying that we are not robots and can’t be programmed, change of any sort takes time and isn’t just an over night process. Marina Krakovsky concludes “The Effort Effect” observes that the study of developing mind set skills and the ability to create a growth mind, though can be taken too far, is believed to be highly learned…

    • 285 Words
    • 2 Pages
    Good Essays
    Read More
  • Good Essays

    External Forces
    • 808 Words
    • 4 Pages

    External Forces

    To what extent is an individual’s sense of belonging determined by external forces. Support your response by close reference to how ideas about belonging are represented in your prescribed text and at least one other related text of your own choosing.…

    • 808 Words
    • 4 Pages
    Good Essays
    Read More
  • Good Essays

    The Push/Pull Factors: Monica Mena By Monica Mena
    • 841 Words
    • 4 Pages

    The Push/Pull Factors: Monica Mena By Monica Mena

    To start this off let’s talk about the setting of the room, now picture a living room with white wall and a white ceiling, then the floor is wood. The room had general furniture like a couch its center table the tv with its console decoration of the season and two windows one on the first wall you see and the wall to your right. Then on the couch is where which was the color olive is where the subject sat a Hispanic lady of walnut color hair and today in her 50s and with Indian color skin. She wore a casual clothing a normal beige blouse and dress pants that are black, sitting on the couch, and so the interview begins.…

    • 841 Words
    • 4 Pages
    Good Essays
    Read More
  • Good Essays

    Precious vs Push
    • 1123 Words
    • 5 Pages

    Precious vs Push

    While reading Push, by Sapphire you are engaged in Precious’ every thought, whether it was random, or a part of what was going on in that very moment. You knew her responses to what was said to her, even if she did not respond aloud to what was being said. In the book, her own personal thoughts were intertwined with the dialect of the story. I enjoyed that aspect of the book, while in the film if you were to here all of the random thoughts and responses it would seem to be too much going on, and to confuse the reviewer. I enjoyed the fact that in the film I could look at the expression on Precious’ face and know, courtesy of the book, exactly what she was thinking. A film adaptation of a book should complement the book, still telling the story accurately and getting the characters personality and struggles or successes across and I believe the film Precious did just that.…

    • 1123 Words
    • 5 Pages
    Good Essays
    Read More
  • Satisfactory Essays

    Explain The Agreed Ways Of Working
    • 322 Words
    • 2 Pages

    Explain The Agreed Ways Of Working

    Agreed ways of working is following the companies’ policy and procedures within the care plan given to each service user and care plans within The Manor. The policies and procedures document will give you all the information you need to know within your role and place of work, it explains how you should do your job, for example it translates policies into working practice such as a manual handling procedure will tell you how to undertake a risk assessment and will cover all the stages of the process.…

    • 322 Words
    • 2 Pages
    Satisfactory Essays
    Read More
  • Good Essays

    Which Is More Effective at Improving Performance, Positive or Negative Feedback?
    • 616 Words
    • 3 Pages

    Which Is More Effective at Improving Performance, Positive or Negative Feedback?

    The aim of this investigation is to discover which form of feedback, either positive or negative, is most effective in serving to improve performance.…

    • 616 Words
    • 3 Pages
    Good Essays
    Read More
  • Good Essays

    Law of Attraction
    • 4542 Words
    • 19 Pages

    Law of Attraction

    As with everything in this world, it is governed by laws. Some people understand laws of physics, natural laws and even laws created by humans. But what about those principles that a person can't see happen in action? This is where the law of attraction is introduced. The Law of Attraction states, "That which is like itself is will attract." That is easy enough to understand. Like attracts like.…

    • 4542 Words
    • 19 Pages
    Good Essays
    Read More
  • Powerful Essays

    MU1 Assignment 2
    • 1726 Words
    • 6 Pages

    MU1 Assignment 2

    In manufacturing companies, production is usually the most important aspect of the entire process mostly due to the high cost incurred, the staffing and the complexity of the departments involved –…

    • 1726 Words
    • 6 Pages
    Powerful Essays
    Read More
  • Satisfactory Essays

    difference
    • 1410 Words
    • 6 Pages

    difference

    Elementary School and Middle School: The Differences and Similarities What_is_it_like_to_transition_from_elementary_to_middle_school? _ That_is_a_question_many_kids_ask_each_year._Having_experienced_ both,_I_can_tell_you_that_there_are_plenty_of_similarities_as_well_as_ some_very_big_differences_between_the_two_types_of_schools. Elementary_schools_and_middle_schools_have_many_traits_in__ common._Typically,_both_are_open_five_days_a_week_for_a_set__ number_of_hours_each_day._Students_sit_at_desks_in_classrooms__ and_are_expected_to_listen_to_and_learn_from_their_teachers._There__ is_a_set_time_for_lunch._Each_day,_students_are_given_homework__ assignments._Students_take_quizzes_and_tests._In_all_of_these_ways,_ middle_school_should_feel_somewhat_familiar_to_new_students. However,_there_are_some_big_changes_that_new_middle_school_ students_should_be_aware_of._In_elementary_school,_students__ usually_stay_in_the_same_classroom_with_one_teacher_for_most_of__ the_day._That_is_not_the_case_in_middle_school,_where_students__ typically_have_a_different_teacher_for_each_subject._Students_must_ move_to_a_different_classroom_for_each_subject_too._Since_there_is_ not_one_classroom_in_which_to_store_supplies,_middle_schools_often_ provide_students_with_lockers._For_many_kids,_getting_a_locker_is_a…

    • 1410 Words
    • 6 Pages
    Satisfactory Essays
    Read More

Related Topics