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The Wastes of Production in Construction – a TFV Based Taxonomy

Bølviken, Trond, Rooke, John and Koskela, Lauri (2014) The Wastes of Production in Construction – a TFV Based Taxonomy. In: Proceedings of the 22nd Annual Conference of the International Group for Lean Construction. IGLC 2014, 2 . International Group for Lean Construction, Oslo, Norway, pp. 811-822. ISBN 978-82-321-0459-8

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A paper by the authors presented at IGLC 21 in 2013 concluded that the classical list
of seven wastes presented by Ohno is context specific (related to mass production)
and that there is a need for the creation of a list specific for construction. The present
paper presents a draft of such a list. The draft list is constructed in compliance with
the Transformation – Flow – Value theory of production. Three main categories of
waste are established: Material waste, time loss and value loss. The first is related to
the transformation perspective, the second to the flow perspective and the third to the
value perspective.
Making do, buffering and task diminishment are not included as such in the
proposed taxonomy. The paper therefore discusses how these phenomena relate to the
categories of waste in the proposed taxonomy.
A taxonomy of waste must be based on an explicit definition of the term waste.
The two terms value and waste are tightly interconnected. Although value and waste
are among the most central and used terms in the “lean” literature, no commonly
accepted definitions of the two terms exist. The following definitions are proposed:
• Value is a wanted output
• Waste is the use of more than needed, or an unwanted output
Value is related to wanted things (coming out of production), whereas waste can be
related both to activities (inside production) and to unwanted things (coming out of

Item Type: Book Chapter
Subjects: H Social Sciences > HD Industries. Land use. Labor
T Technology > TH Building construction
Schools: School of Art, Design and Architecture
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Depositing User: Sara Taylor
Date Deposited: 20 Oct 2015 12:10
Last Modified: 28 Aug 2021 11:56


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