Just-in-time Filosofin (JIT Filosofin)

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Just-in-time Filosofin (JIT Filosofin)

Vad är Just-in-Time? Definition

Just-in-time pionjären var Taiichi Ohno ifrån Japan på Toyotas bilmonteringsfabrik under det tidiga 70-talet. Det är en tillverkningsorganisations filosofi.   JIT minskar kassation/förluster genom att leverera delarna just när monteringsprocessen behöver dem.  I centrum för JIT ligger kanban, ett japanskt ord för kort. Detta kanban kort överförs till lagret för att be om en standard uppsättning av delar som då och då har förbrukats i monterings/tillverkningsprocessen. JIT kräver precision, eftersom de rätta delarna måste anlända ”just-in-time” på rätt plats (till arbetsstationen på monteringsbandet). Den används i första hand för högvolyms upprepande flödestillverkningsprocesser.


Historia bakom Just-in-time

Historiskt så uppstod JIT-filosofin utifrån två andra skäl:

  1. Japanerna önskade att förbättra sin produktionkvalitet. Då japanska företag hade ett dåligt anseende så långt, som det berörde kvaliteten i tillverkningen och biltillverkning i synnerhet.
  2. Kaizen är också en japansk metod om ständig förbättring.

Just-in-time ramverket gällande lagret är en dålig ursäkt för dålig planering, stelhet, fel maskineri, kvalitetsproblem, etc.. Målet med JIT är att snabba upp kundresponsen medans man samtidigt minimerar lagret. Lager  hjälper till att reagera snabbt på förändrade kundbehov men kostar oundvikligen också pengar och ökar på det nödvändiga rörelsekapitalet.


 År 1990 så skrev James  Womack en bok som kallades ”The Machine That Changed The World” som introducerade terminologin ”Lean Manufacturing”. Också du kan stöta på uttrycket: ”Lean production”. Principerna bakom dessa angreppssätt skiljer sig inte väsentligen åt från de tekniker som utvecklades av Ohno på Toyota.


Uppmärksamhetsområden vid Just-in-time

Typiska uppmärksamhetsområden av JIT-genomföranden inkluderar:

  • Lager minskning.
  • Mer av mindre produktionstilldelningar och storleken på tillverkningsomgångarna.
  • Kvalitetskontroll.
  • Minskning av komplexitet och transparens.
  • Platt organisationsstruktur och delegering.
  • Minimering av kassation och spill.

Extern och utvidgad Just-in-time

I och med uppkomsten av Internet och Försörjningskedjans Planering-/Supply Chain Planerings programvara, har företag under tiden utvidgat Just-in-time tillverkningen till att omfattas även utanför företagets gränser. Genom att begära av deras leverantörer att leverera lagret till fabriken endast när den behövs för monteringen, gör att JIT tillverkning och att beställa, leveransprocesser ännu snabbare och mer flexibla och effektivare. På dettta sätt kan Integrerade Leverantörs Nätverk (Köparnätverk) eller elektroniska leveranskedjor bildas.


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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.
13
 
6 kommentarer
Combining JIT and Outsourcing
JIT and outsourcing go hand in hand.
On one side it seems contradictory. JIT stands for producing and delivering to (...)
13
 
2 kommentarer
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 chan (...)
9
 
1 kommentarer
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.

Ka (...)
8
 
Importance of Inventory Velocity
Why is inventory velocity so important in supply chain management? (...)
6
 
2 kommentarer
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. (...)
6
 
1 kommentarer
Sustainable Business Approach after Years of JIT
I had a very interesting conversation with someone who has become recently Chief Sustainability Officer of a top 10 phar (...)
5
 
2 kommentarer
Just-in-time Needs Flexibility
Of course, Just-in-time needs a flexible manufacturing system.
But actually, this flexibility has several aspects. (...)
5
 
1 kommentarer
Classification of Lean Tools
Can you briefly explain how to classify lean tools?
I mean: different people seem to classify Lean tools in differe (...)
5
 
1 kommentarer
Kanban and Procurement Planning
Does the Kanban or the pull system contradict with the procurement planning early in the project life cycle? (...)
5
 
2 kommentarer
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 (...)
5
 
1 kommentarer
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 realit (...)
4
 
4 kommentarer
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 s (...)
4
 
5 kommentarer
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 c (...)
3
 
1 kommentarer
Information Velocity
Why is information velocity important in supply chain management? (...)
3
 
2 kommentarer
Poka Yoke - Explanation
Poka Yoke is a method that shapes the production process the way it gets almost impossible to make mistakes. Employees h (...)
3
 
1 kommentarer
Disadvantages of JIT
A lean system has no resilience. Integrating JIT as far as possible back up the supply line creates rigid connections b (...)
2
 
14 kommentarer
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 (...)
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4 kommentarer
Intent of Just in Time
In my view, ultimately the intent of just in time is to minimise cost. Which must be understood very well and planning s (...)
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4 kommentarer

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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 (...)
20
 
3 kommentarer

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 f (...)
16
 
6 kommentarer

The Principles of Lean
Lean works on certain principles:
1. Identify customer specific value (customer requirements);
2. Value stream (...)
11
 
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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 a (...)
8
 
10 kommentarer

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 (...)
7
 
5 kommentarer

Lean and JIT Manufacturing
Is there any difference between Lean and JIT Production? (...)
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Avancerad insikt om Just-in-time (Engelsk). Här hittar du professionella råd från experter.


Main Advantages of JIT?

Benefits of J
Among the main causes for the success of J are its capabilities to deal with certain major economic trends: (...)

Lean Tools to Attack Waste

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

7 Things to Avoid in Just-in-Time

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

Use of Andon as Part of J

Signaling Abnormalities
J is a pull-system. That means that when the customer places his order, the machine starts rolling. Of cours (...)

The 8 Wastes of Lean Explained

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T - Transport - Moving people, products & information I - Inventory - Storing parts, pieces, documentation ahead of req (...)

Standard Work in Just-in-Time

Just-in-Time
A J organization has to be capable to function 100% reliable when ‘pulled’ by the customer. To achieve this (...)

Operation Management Issues and Focus Areas

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According to Heizer and Render, there are 10 decision areas of Operation Management (each having typical issues): 1. Go (...)

How to Focus your Improvement Efforts?

Achieve More With Less, Kaizen, BPR, JIT, Lean, Value Chain
Very often organizations consider continuous improvement as committing on improvement efforts, and thus creating project (...)

Synonyms of J (JIT)

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

JIT II

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

Obtaining a High Supplier Quality

Best Practice to Consider
W. Edward Deming, a well-known management consultant, strongly recommended Sole (Single) Sourcing as the only management (...)
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Summary of Lean Manufacturing and Maintenance. History, Tools, PROs and CONs

Operational Excellence, Maximizing Efficiency
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Value Chain Management, Quality Management, Innovation, Operational Excellence
This presentation firstly presents the role of functional strategies and the value chain in the achievement of competiti (...)

Financial Consequences from Implementing Lean Manufacturing

JIT, TQM
In the last 30 years, many U.S. firms have adopted lean manufacturing strategies. Despite evidence of substantial variat (...)

Lean Production for a Green Environment

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Presentation about lean manufacturing and its relation with sustainable business. The presentation includes the followin (...)

Lean Assessment Tool

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Spreadsheet calculates current and future Lean and Six Sigma scores based on scoring in 28 criteria. Generates Lean Over (...)

Managing your Inventory: Quick Introduction to Just in Time, Stock Review and ABC Analysis

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