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One on One Support Improving your processes can be difficult if you do not know where to start, as can be implementing Lean Manufacturing Tools such as 5S or Value Stream Mapping. Our online coaching for Lean however could be…

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5S PPTx and 5S PDF Downloads If you want to learn all about 5S then the following 5S presentations in ppt (PowerPoint) format and PDF format are available to you for free download. Please note that these 5S Training presentation…

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Profile:

Shahrukh A. Irani and Jin Zhou
Department of Industrial, Welding and Systems Engineering
The Ohio State University

Introduction:

Lean Thinking, a concept that is based on the Toyota Production System, extends continuous improvement efforts to reduce the costs of serving customer/s beyond the
physical boundaries of a manufacturing facility, by including the suppliers, distributors
and production system that support the manufacturing function [Womack and Jones,
1996]. These improvements and cost reductions are achieved by eliminating the muda
(wastes) associated with all activities performed to deliver an order to a customer. Wastes
are defined as "all activities that consume resources (add costs to the product) but
contribute zero value to the customer." According to Womack and Jones, there are five
steps for implementing Lean Thinking in an enterprise: 1) Define Value from the
perspective of the Customer, 2) Identify the Value Streams, 3) Achieve Flow, 4)
Schedule production using Pull, and 5) Seek Perfection through Continuous
Improvement. Womack and Jones define a Value Stream as "the set of all the specific
actions required to bring a specific product through the three critical management tasks of
any business: ...problem solving, ...information management, ...physical
transformation". Alternatively, Rother and Shook define a Value Stream as "all the
actions (both value-added and non-value-added) currently required to bring a product
through the main flows essential to every product" [Rother and Shook, 1999, p. 3].

Overview of Value Stream Mapping

Value Stream Mapping (VSM) is the process of mapping the material and information
flows required to coordinate the activities performed by manufacturers, suppliers and
distributors to deliver products to customers. Unlike the traditional process mapping
tools used by IE's, VSM is a mapping tool that maps not only material flows but also
information flows that signal and control the material flows. This enhanced visual
representation facilitates the identification of the value-adding steps in a Value Stream
and elimination of the non-value adding steps, or wastes (muda). Using VSM, many
OEM's and their top-tier suppliers have changed their existing facility layouts, as well as
existing systems for material handling, inventory control, purchasing and scheduling, to
reduce the total throughput times of orders and current levels of work-in-process (WIP)
inventories.

Please click here for the details:

Value Stream Mapping of a Complete Product.pdf

Visualization and Analysis of Multiple Flows in Value Stream Maps

Profile:

ZahirAbbas N. Khaswala and Shahrukh A. Irani 1
Department of Industrial, Welding and Systems Engineering
The Ohio State University

Outline of this Paper

First, the concept of Lean Thinking is introduced and reviewed. This is followed by an explanation of the basic concepts of Value Stream Mapping (VSM), with a listing of the advantages and disadvantages of VSM. Specifically, it is shown that the original VSM methodology breaks down in the case of "multiple flows in a value stream that merge" in the case of complex product BOMs. Next, the development of the proposed approach, Value Network Mapping (VNM), is explained in detail. Finally, the results from an industry project are analyzed and the potential benefits of the proposed approach are presented.

Please click here for the details:

Value Network Mapping (VNM).pdf