Just-in-time[JIT,即时生产]

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Supply Chain Planning[供应链规划]。 Taiichi Ohno的 Just-in-time[JIT,即时生产]哲学解析。 (‘70)


即时生产

什么是即时生产? 释义

即时生产(JIT)最先由日本丰田汽车公司的Taiichi Ohno于上个世纪70年代初期提出, 它是一种生产管理哲学。   JIT要求物料供应部门只有在装配流程需要时才向组装厂提供零配件,从而减少浪费。 JIT理论的核心是看板管理(Kanban),Kanban是日语“卡片”的意思。 当生产/装配线上的原材料、零部件耗尽时,就会将Kanban送到仓库,要求仓储部门按照Kanban标明的定量提供原料、配件。 JIT对精度的要求很高,即正确的部件必须即时地抵达准确的地点(装配线)。 它主要应用于大规模重复生产流程。


即时生产的沿革

JIT源于以下两个原因:

  1. 日本企业希望改进其生产质量。 历史上,日本企业也曾因为生产质量不过关而享有恶名,尤其是汽车制造业。
  2. Kaizen[改善],日本企业实现持续改进的另一个方法。 

即时生产的理论架构认为,库存是规划不当、生产僵硬、设备错误以及质量问题的一个可怜借口, JIT的目标就是要在尽可能减少库存的同时,提高顾客需求反应速度。 库存虽然有助于快速应对不断变化的顾客需求,但是不可避免地将增加成本以及对营运资金的需求。


1990年,James Womack出版了《改变世界的机器》(The Machine that Changed the World)一书,率先提出了“精益制造”(Lean Manufacturing的概念, 有时也称作为: “精益生产”(Lean Production。 这些新鲜名词、时髦方法背后的法则与Taiichi Ohno发展的“即时生产”并没有本质区别。


即时生产的关注点

以下几个方面是JIT实施过程中要尤为注意的:

  • 减少库存。
  • 少量生产、批量生产。
  • 控制质量。
  • 减小复杂程度,增加透明度。
  • 组织结构、层级关系扁平化。
  • 废料率最小化。

外延扩展的JIT

随着互联网技术的广泛运用,以及供应链规划软件的问世,公司已经能够将JIT扩展延伸至组织边界之外。 通过要求供应商实时提供原材料,实现JIT生产,公司的订货、配送等流程变得更快捷、更灵活、更高效。 现在,综合化的供需网络(亦被称之为“电子供应链”)已经正在形成。


即时生产 小组


小组 (52名成员)


即时生产论坛  

在论坛部分,您将在此知识领域中找到最近的讨论。


  Waste Elimination (0个反应)
Got it, JIT and Lean production share the same methodology!...
 
 
 
 
  如何提高玩具的生产效率 (0个反应)
生产效率是每一个玩具企业都想不断提高的一...
 
 
 
 
  Single Minute Exchange of Dies (6个反应)
Dear reader, I am currently working on a Single Minute Excha...
 
 
 
 
  List of Barriers to Just-in-Time | Barriers to JIT (4个反应)
Though JIT as a theoretical concept seems superb, there are ...
 
 
 
 
  JIT in Variable Marketplaces (5个反应)
In trying to implement a JIT system within my organisation. ...
 
 
 
 
  Poka Yoke - Explanation (1个反应)
Poka Yoke is a method that shapes the production process the...
 
 
 
 
  Information Velocity (2个反应)
Why is information velocity important in supply chain manage...
 
 
 
 
  Why is a Sustainable Business Approach Capable of Removing So Much Inefficiency after years of JIT? (1个反应)
I had a very interesting conversation with someone who has b...
 
 
 
 
  Disadvantages of JIT (14个反应)
A lean system has no resilience. Integrating JIT as ...
 
 
 
 
  Customer Support in Just in Time is Needed (1个反应)
I think for implementing Just-In-Time, the customer must sup...
 
 
 
 
  JIT is Playground for Big Companies (4个反应)
I think that JIT or zero inventory or any system aiming simi...
 
 
 
 
  Intent of Just in Time (4个反应)
In my view, ultimately the intent of just in time is to mini...
 
 
 
 

最佳实践 - 即时生产

在最佳实践部分,您将在此知识领域内找到最佳论坛讨论。


  Definition of Just-in-time (3个反应)
JIT can be considered as:
1. A way of life
2. A ph...
 
 
 
 
  Assumptions of Just-in-time (JIT) (6个反应)
Assumptions for effective JIT:
1. It depends on the typ...
 
 
 
 
  Combining JIT and Outsourcing (2个反应)
JIT and outsourcing go hand in hand.
On one side it see...
 
 
 
 
  The Principles of Lean (4个反应)
Lean works on certain principles:
1. Identify customer ...
 
 
 
 
  Lean Manufacturing Tools for Beginners (10个反应)
Could somebody tell me what are the most important lean tool...
 
 
 
 
  How to Reduce the Vendor Risks with Just-in-Time ? (1个反应)
When we execute JIT, we normally require our vendor to prepa...
 
 
 
 
  Just-in-time: Problematic or Possible? (5个反应)
Just-in-time (JIT) has always been a troublesome part of the...
 
 
 
 
  Can Just-in-Time Work Without Kanban? (0个反应)
Just-in-Time is a basic philosophy or a paradigm. If you rea...
 
 
 
 
  Experiences with Including Purchased Parts in Kanban (1个反应)
Taiichi Ohno was plant manager of a Toyota factory wh...
 
 
 
 
  Importance of Inventory Velocity (2个反应)
Why is inventory velocity so important in supply chain manag...
 
 
 
 
  Just-in-time Needs Flexibility (1个反应)
Of course, Just-in-time needs a flexible manufacturing sy...
 
 
 
 
  Classification of Lean Tools (1个反应)
Can you briefly explain how to classify lean tools?
I m...
 
 
 
 
  The Impact of JIT on the Organization of Production Planning (1个反应)
JIT will have a strong impact on your organization of produc...
 
 
 
 
  Kanban and Procurement Planning (2个反应)
Does the Kanban or the pull system contradict with the procu...
 
 
 
 
  Lean and JIT Manufacturing (7个反应)
Is there any difference between Lean and JIT Production?...
 
 
 
 

Expert Tips (ENG) - Just-in-time

在专家提示部分,您可以找到该知识领域专家的建议。


 

Main Advantages of JIT?

Benefits of Just-in-time...
 
 
 

Lean Tools to Attack Waste

Waste Management, Waste Tools Overview...
 
 
 

7 Things to Avoid in Just-in-Time

Just-in-Time Pitfalls...
 
 
 

Use of Andon as Part of Just-in-time

Signaling Abnormalities...
 
 
 

The 8 Wastes of Lean Explained

Waste Management...
 
 
 

Standard Work in Just-in-Time

Just-in-Time...
 
 
 

Operation Management Issues and Focus Areas

Operations Management, JIT, Kaizen...
 
 
 

How to Focus your Improvement Efforts?

Achieve More With Less, Kaizen, BPR, JIT, Lean, Value Chain...
 
 
 

Synonyms of Just-in-time (JIT)

Other Terms that are used to Indicate JIT...
 
 
 

JIT II

JIT with supplier...
 
 
 

Obtaining a High Supplier Quality

Best Practice to Consider...
 
 

相关资料 - 即时生产

在参考资料部分,您将在此知识领域内找到powerpoint演示文稿,微观学习视频,文章,新闻项目等。


 

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比较: Kaizen[改善]  |  Deming Cycle[戴明循环]  |  Scientific Management[科学管理]  |  Six Sigma[六西格玛]  |  Value Chain[价值链]  |  Value Stream Mapping[价值流程图]  |  CPFR  |  Bricks and Clicks[砖块加鼠标]  |  Delta Model[金三角模型]  |  3rd Party Logistics[3PL,第三方物流]  |  RFID Technology[无线射频识别技术]


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