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High variety impacts on Bill of Materials Structure: Carmakers case study

Chatras, Clément; Giard, Vincent; Sali, Mustapha (2015), High variety impacts on Bill of Materials Structure: Carmakers case study, 2015 IFAC Symposium on Information Control in Manufacturing (INCOM 2015), 2015-05, Ottawa, Canada

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Chatras et al 2015 N280.pdf (568.0Kb)
Type
Communication / Conférence
Date
2015
Conference title
2015 IFAC Symposium on Information Control in Manufacturing (INCOM 2015)
Conference date
2015-05
Conference city
Ottawa
Conference country
Canada
Journal name
IFAC-PapersOnLine
Volume
48
Number
3
Publisher
Elsevier
Pages
1067-1072
Publication identifier
10.1016/j.ifacol.2015.06.225
Metadata
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Author(s)
Chatras, Clément
Laboratoire d'analyse et modélisation de systèmes pour l'aide à la décision [LAMSADE]
Giard, Vincent
Laboratoire d'analyse et modélisation de systèmes pour l'aide à la décision [LAMSADE]
Sali, Mustapha
Dauphine Recherches en Management [DRM]
Abstract (EN)
The great variety of offerings from companies engaged in mass customization such as in the automotive sector, implies millions of end products. As in the case of carmakers, this variety proceeds from the combination of dozens of optional or alternative components. A number of technical or commercial constraints prevent most combinations of alternative components (ACs). In these conditions, the creation and updating of the full set of the Bills of Materials corresponding to each end-product is extremely complex. Additionally, customers may not define their product requirements by specifying a list of alternative components because of the number of alternative components (including some entirely unknown to them) and their interdependence. In the past 25 years, scant research has been dedicated to Bills of Materials representation problems in this context. The most exciting ones use predicates to formalize combinatorial constraints between ACs and introduce a ‘generic Bill of Materials’ concept to avoid an exhaustive description of all end products. Additionally, product description for customer purposes was streamlined through a further concept – the set of alternative services (SAS). This approach, implemented by several carmakers in the last fifteen years, superseded the traditional approach to bills of materials, though it never gave rise to the theoretical exercise described here that involves an analysis of its impact on bills of materials and on operational and tactical decisions. It describes the product based on its market features, before moving on to the actual ACs combinations based on predicates for alternative services (ASs). We show how some carmakers successfully use the AS concept to support sales at configurator level and address operational production issues.
Subjects / Keywords
generic Bill of Materials; mass customization; Planning Bill of Materials; automotive industry; alternative services
JEL
M11 - Production Management
L92 - Railroads and Other Surface Transportation

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