Value Stream Mapping: a Sector Based Approach

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Value stream mapping: a sector based approach
This paper was created on 01/05/2012

Gieljan Engelrelst

Dimitri Van Nieuwenhove

Industrial Engineering and Operations Research
University of Ghent
Belgium
Gieljan.Engelrelst@ugent.be

Industrial Engineering and Operations Research
University of Ghent
Belgium
Dimitri.VanNieuwenhove@ugent.be

Abstract—Value stream mapping is one of the most used tools in lean manufacturing. It’s a universal approach that can be used in many environments. In this paper, some environments are
discussed where Value stream mapping has been applied on. The typical results, depending on the environment or industry, are summarized for every environment as well as the typical
difficulties of every industry. This paper covers car
manufacturing industry, metalworking industry, distribution
sector, food sector, healthcare, product development, value
stream mapping in simulation and sales sector.
Keywords: Value stream mapping, lean manufacturing,
different industries, results, difficulties

I.

LEAN MANUFACTURING

The last decades the world has known a phenomenon
called globalization: it became easier and easier for
companies to sell their products at the other side of the
world. The main reason for the globalization is the technical evolution which made it possible to transport anything to
any place in the world. Another important factor of the
globalization is the World Wide Web. Thanks to the World
Wide Web people are able to search for stores, products,
services all over the world. An important consequence due
to the globalization of the market is the fact that companies will have to be stronger than ever before in order to survive in this competitive market. Because of the globalization,
customers are much more sensitive for the quality and the
cost of the products they buy. If the companies can’t satisfy the needs of the customer, the customers will buy their
products somewhere else.
An aid for companies to meet the demands of the
customer is lean manufacturing. Lean manufacturing is a
philosophy which distinguishes 3 types of activities within
companies: added value activities, non-added value
activities and necessary but non-added value activities. In
this context, value is everything where the customer is
willing to pay for and thus specified by the customer. Lean
manufacturing will focus on reducing the non-added value
activities, also called waste, as much as possible. There are seven categories of waste in lean manufacturing which are
shown in figure one.

Figure 1. Seven forms of waste

As one can see, these forms of waste are always present
in every company. The goal of the company that
implements lean manufacturing has to be the ideal situation
where there isn’t any form of waste. To aim for this goal, the company will have to improve continuously. After
analyzing the current situation, implementing improvements
and evaluation of the improvements, there is no point where
the story of lean manufacturing stops. The improved
situation becomes the current situation and the improvement
process starts all over again. Everyone in the company
needs to be involved anytime in the story of lean
manufacturing in order to meet all customer demands.
There are several tools in lean manufacturing which will
help the people in the company to focus on the big fishes or the right things. Some tools are easy and others are
complex, some will need a lot of time and others will go
quiet quick, some will focus on one type of waste and others will focus on a couple of types of waste. So it’s important to select the right tool for the right kind of result. A very powerful, widely used tool is value stream mapping.

II.

VALUE STREAM MAPPING

The value stream in a company are all the activities (both
value added and non-value added) currently required to
bring a product from raw material into the hands of the
customer [1]. Value stream...
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