적시생산시스템 (JIT, Just-in-time)

지식 센터

   

공급망계획(Supply Chain Planning). Taiichi Ohno의 적시생산시스템(JIT, Just-in-time) 철학의 설명. ('70)

목차

  1. 요약
  2. 포럼
  3. 모범 사례
  4. Expert Tips
  5. 자료
  6. 인쇄

적시생산시스템

JIT란 무엇인가? 정의

JIT 일본의 Toyota 자동차 조립공장에 있던 Taiichi Ohno에 의해 1970 년대 초기에 개척되었다. JIT 제조업 조직의 철학이다.   JIT는 조립프로세스에서 부품을 필요로 할 때에만 부품을 공급하게 함으로써 낭비를 줄인다. JIT의 중심에 카드를 의미하는 일본어인 간반(Kanban)이 있다. 이러한 간반카드를 부품이 조립/제조 프로세스에서 소모될 때 창고에 보내 부품의 표준수량을 요청한다. JIT는 올바른 부품이 올바른 장소(조립라인의 작업대)에 적시에(just-in-time)에 보내져야 하므로 정밀도를 요구한다. JIT는 주로 수량이 많은 반복적인 제조 프로세스에 사용된다.


JIT의 역사

역사적으로 JIT 철학은 다음 2가지로부터 발생했다:

  1. 생산품질을 개선하려는 일본의 바램. 당시 일본 기업들은 제조품질 특히 자동차 제조에 관련하여 나쁜 평판을 받고 있었다.
  2. Kaizen[카이젠, 개선기법], 또한 지속적인 개선을 위한 일본식 방법.

JIT모델은 재고를 기획부실, 경직성(inflexibility), 잘못된 기계, 품질 문제 등에 대한 변명으로 보았다. JIT의 목표는 재고를 최소화하는 동시에 고객반응의 속도는 높이는 것이다. 재고는 변화하는 고객의 수용에 신속히 대응하는데 도움이 되지만, 어쩔 수 없이 원가가 증가하고 필요한 운전자본이 증가하게 한다.


1990년에 James Womack은 "The Machine That Changed The World"란 책에서 '린생산방식(Lean Manufacturing)'이라는 용어를 소개하였다. 또는 "린 생산 (Lean Production)"이라는 단어로도 불린다. 이러한 접근법의 배경에 있는 원칙은 Toyota의 Ohno가 개발한 기술과 내용이 많이 다르지 않다.


JIT의 관심영역

JIT 행의 일반적인 관심영역은

  • 재고 감소.
  • 더 작은 생산 롯트(lot) 및 배치(batch) 크기.
  • 품질 관리.
  • 복잡성 감소와 투명성.
  • 수평적 조직구조와 권한위임.
  • 낭비 최소화.

외부 확장

인터넷 시대의 도래와 공급망계획(Supply Chain Planning) 소프트웨어를 통해 기업은 JIT 제조방법을 기업의 경계선 밖으로 확장하여 왔다. 공급자들이 조립공정에 필요할 때에만 공장으로 재고를 배달하도록 함으로써, 제조, 주문 배달 프로세스를 더욱 신속하고, 유연하며 효율적으로 하고 있다. 이러한 방식으로 통합된 공급네트워크(integrated supply network 또는 수요네트워크 demand network) 또는 전자공급망(Electronic Supply Chains)이 형성된다.


적시생산시스템 포럼
  List of Barriers to Just-in-Time | Barriers to JIT
Though JIT as a theoretical concept seems superb, there are practical barriers in getting this concept to work in reality and get JIT implemented properly. Let's create a complete a list of all those barriers to act as a reference for those wanting t...
     
 
  Single Minute Exchange of Dies
Dear reader, I am currently working on a Single Minute Exchange of Dies (SMED) project in a beer production facility.
To implement SMED, I need to determine the baseline on which processes are done now during the changeover. I wanted to FILM thi...
     
 
  Customer Support in Just in Time is Needed
I think for implementing Just-In-Time, the customer must support it with firm and better forecasting, co-operative and committed for inwarding supplies as per the issued schedules. Else we will get sandwiched between performance and customer r...
     
 
  Can Just-in-Time Work Without Kanban?
Just-in-Time is a basic philosophy or a paradigm. If you read about it, you still have no idea HOW to do it.

Kanban however gives a practical way to achieve Just-in-Time. As Taiichi Ohno says:Kanban, in essence, becomes the autono...
     
 
  The Principles of Lean
Lean works on certain principles:
1. Identify customer specific value (customer requirements);
2. Value stream mapping for the process (identify process);
3. Create flow (reduce cycle time);
4. Eliminate waste and non-value-added ...
     
 
  Classification of Lean Tools
Can you briefly explain how to classify lean tools?
I mean: different people seem to classify Lean tools in different ways, for example according to the 8 wastes. Who can give me another way to clas...
     
 
  Just-in-time Needs Flexibility
Of course, Just-in-time needs a flexible manufacturing system.
But actually, this flexibility has several aspects. For a proper functioning JIT-system, flexibility is required towards:
* Changes in product demand: the process ...
     
 
  How to Reduce the Vendor Risks with Just-in-Time ?
When we execute JIT, we normally require our vendor to prepare some stock to deliver fast.
If there are design change requests, or other products updates, how to reduce vendor stock risk?...
     
 
  The Impact of JIT on the Organization of Production Planning
JIT will have a strong impact on your organization of production planning.
With JIT, a factory should operate in a company similar as the autonomic nervous system in the human body. For example the human body will take care of our heartbeat and ...
     
 
  Why is a Sustainable Business Approach Capable of Removing So Much Inefficiency after years of JIT?
I had a very interesting conversation with someone who has become recently Chief Sustainability Officer of a top 10 pharma company (after years as global head of engineering there).
He is using a  
   
 
  Experiences with Including Purchased Parts in Kanban
Taiichi Ohno was plant manager of a Toyota factory when he started experimenting with JIT, Kanban and other Lean tools. This is one of his stories:
we used Kanban in select areas only and the purchased parts were the very last to be p...
     
 
  Just-in-time: Problematic or Possible?
Just-in-time (JIT) has always been a troublesome part of the management of any supply chain. However, it is feasible if the parties have a better understanding of their respective roles and the value each must bring to the chain.
Managing a supp...
     
 
  Definition of Just-in-time
JIT can be considered as:
1. A way of life
2. A philosophy of continuous improvement
3. A way to achieve manufacturing excellence by continually eliminating waste....
     
 
  Poka Yoke - Explanation
Poka Yoke is a method that shapes the production process the way it gets almost impossible to make mistakes. Employees have to make improvements in the process and needs to come up with proposals on how to prevent all the mistakes. The process has to...
     
 
  Information Velocity
Why is information velocity important in supply chain management?...
     
 
  Importance of Inventory Velocity
Why is inventory velocity so important in supply chain management?...
     
 
  Lean Manufacturing Tools for Beginners
Could somebody tell me what are the most important lean tools and techniques that should be used in a company that are about to implement lean manufacturing for the first time? Why? Thank you for your suggestions....
     
 
  JIT is Playground for Big Companies
I think that JIT or zero inventory or any system aiming similar targets needs power to execute. There are three cushions against delivery time variability.
1. Stock
2. Extra capacity
3. Unhappy customers
Big companies may p...
     
 
  JIT in Variable Marketplaces
In trying to implement a JIT system within my organisation. We are finding difficulties due to the random flows we are seeing. This random flow of products is making it hard to establish optimal stock levels.
With optimal stock levels establishe...
     
 

적시생산시스템 시그(SIG)


시그(SIG)

적시생산시스템 교육 및 이벤트


교육, 세미나 및 이벤트 찾기


모범 사례 - 적시생산시스템 프리미엄
  Combining JIT and Outsourcing
JIT and outsourcing go hand in hand.
On one side it seems contradictory. JIT stands for producing and delivering to the customer what he wants when he wants. This is an extreme challenging condition. So you would expect that we should not furthe...
     
 
  Assumptions of Just-in-time (JIT)
Assumptions for effective JIT:
1. It depends on the type of product a company is manufacturing. JIT works best in food (perishable) business, fashion but can also be applied in cars manufacturing like in Toyota.
2. Deep buyer-supplier relat...
     
 

Expert Tips (ENG) - Just-in-time 프리미엄
 

Main Advantages of JIT?

Among the main causes for the success of Just-in-time are its capabilities to deal with certain major economic trends:
a. Deal with decrea...
Usage (application) : Benefits of Just-in-time
 
 
 

Lean Tools to Attack Waste

What lean tools you can use for every waste you can find at your company?
Before you try to implement these lean tools you have to train your ass...
Usage (application) : Waste Management, Waste Tools Overview
 
 
 

7 Things to Avoid in Just-in-Time

The seven zeros or seven areas of wastes in JIT / Lean Thinking are:
- Zero Defects: To avoid delays due to defects
- Zero (Excess) Lot Siz...
Usage (application) : Just-in-Time Pitfalls
 
 
 

Use of Andon as Part of Just-in-time

Just-in-time is a pull-system. That means that when the customer places his order, the machine starts rolling.
Of course the whole organiz...
Usage (application) : Signaling Abnormalities
 
 
 

The 8 Wastes of Lean Explained

T - Transport - Moving people, products & information
I - Inventory - Storing parts, pieces, documentation ahead of requirements
M - Motion ...
Usage (application) : Waste Management
 
 
 

Standard Work in Just-in-Time

A just-in-time organization has to be capable to function 100% reliable when pulled by the customer.
To achieve this readiness the organ...
Usage (application) : Just-in-Time
 
 
 

Operation Management Issues and Focus Areas

According to Heizer and Render, there are 10 decision areas of Operation Management (each having typical issues):
1. Goods and Services De...
Usage (application) : Operations Management, JIT, Kaizen
 
 
 

How to Focus your Improvement Efforts?

Very often organizations consider continuous improvement as committing on improvement efforts, and thus creating projects to implement them, in all ar...
Usage (application) : Achieve More With Less, Kaizen, BPR, JIT, Lean, Value Chain
 
 
 

Synonyms of Just-in-time (JIT)

Instead of JIT, you may also find the following similar terms:
- Continuous Flow Manufacturing (IBM)
- Stockless Production (HP)
- Repe...
Usage (application) : Other Terms that are used to Indicate JIT
 
 
 

JIT II

The term JIT II has been applied as co-location and is a further step toward reducing unnecessary logistics times and costs and exploring further oppo...
Usage (application) : JIT with supplier
 
 
 

Obtaining a High Supplier Quality

W. Edward Deming, a well-known management consultant, strongly recommended Sole (Single) Sourcing as the only management way to obtain high supplier q...
Usage (application) : Best Practice to Consider
 
 

자료 - 적시생산시스템 프리미엄
 

뉴스

적시생산시스템
     
 

뉴스

JIT Just-in-time
     
 

영화

적시생산시스템
     
 

영화

JIT Just-in-time
     
 

프리젠 테이션

적시생산시스템
     
 

프리젠 테이션

JIT Just-in-time
     
 

적시생산시스템
     
 

JIT Just-in-time
     

관련 개념:  Kaizen[카이젠, 개선기법]  |  Deming Cycle [데밍 사이클]  |  Six Sigma [6 시그마]  |  Value Chain[가치 사슬]  |  Value Stream Mapping [VSM, 가치흐름지도]  |  Bricks and Clicks [온라인 오프라인 공조전략]  |  Delta Model [델타 모델]  |  제 3 자 물류관리 (3PL)


다른 페이지로 이동: Change & Organization [변화와 조직]  |  공급망관리와 품질


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Copyright 2016 12manage - 경영 이러닝 커뮤니티. V14.1 - 마지막 업데이트: 30-9-2016. 모든 상표권은 소유자에게 있습니다.