How to deal correctly with Lead Time in General Supply Chains

In the new global economy, the inventory control has become a priority for the supply chain management. Safety stock is the sole way to fight against the demand and the supply uncertainty, so determining the amount of it that must be kept along the network to holistically minimize the risk of disrup...

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Bibliographic Details
Author: Martín Romero, Maria Pilar
Format: master thesis
Publication Date:2017
Country:España
Institution:Universitat Politècnica de Catalunya (UPC)
Repository:UPCommons. Portal del coneixement obert de la UPC
Language:English
OAI Identifier:oai:upcommons.upc.edu:2117/110790
Online Access:https://hdl.handle.net/2117/110790
Access Level:Open access
Keyword:Business management BM
Empreses -- Direcció i administració
Àrees temàtiques de la UPC::Economia i organització d'empreses
id ES_b044f499eca5f112f3e2edb26060a5d3
oai_identifier_str oai:upcommons.upc.edu:2117/110790
network_acronym_str ES
network_name_str España
repository_id_str
spelling How to deal correctly with Lead Time in General Supply ChainsMartín Romero, Maria PilarBusiness management BMEmpreses -- Direcció i administracióÀrees temàtiques de la UPC::Economia i organització d'empresesIn the new global economy, the inventory control has become a priority for the supply chain management. Safety stock is the sole way to fight against the demand and the supply uncertainty, so determining the amount of it that must be kept along the network to holistically minimize the risk of disruption while maximize the profit is a critical issue. For the supply side, the focus is held in the lead time variability which can significantly vary depending on the part of the supply chain or new inconvenient facts could relevantly affect the lead time. Even so, developed models have forced to assume a certain value or a distribution for the lead time, yet this is risky. Historical data is often unreliable, not available or insufficiently representative. Therefore, a new model based on the Guaranteed Service approach and combined with robust optimization techniques is proposed, working with the lead time volatility without assuming any specific distribution. Interesting features arise from the new model such as the smooth tractability of the problem, the facile computational skills required or the lack of resources needed. This approach has been formulated and tested, as well as the Guaranteed Service when a distribution is assumed for the lead time and the original model. Then, the performance of the three of them has been compared in order to find the correct way to deal with uncertain lead time. Finally, the Robust Guaranteed model benefits promise better security to companies and it also provides a powerful tool to manage the risk from the supply side.OutgoingUniversitat Politècnica de CatalunyaMatsukawa, Hiroaki20172017-03-0120172017-11-16master thesishttp://purl.org/coar/resource_type/c_bdccNAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/masterThesisapplication/pdfhttps://hdl.handle.net/2117/110790reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1107902026-05-27T15:37:01Z
dc.title.none.fl_str_mv How to deal correctly with Lead Time in General Supply Chains
title How to deal correctly with Lead Time in General Supply Chains
spellingShingle How to deal correctly with Lead Time in General Supply Chains
Martín Romero, Maria Pilar
Business management BM
Empreses -- Direcció i administració
Àrees temàtiques de la UPC::Economia i organització d'empreses
title_short How to deal correctly with Lead Time in General Supply Chains
title_full How to deal correctly with Lead Time in General Supply Chains
title_fullStr How to deal correctly with Lead Time in General Supply Chains
title_full_unstemmed How to deal correctly with Lead Time in General Supply Chains
title_sort How to deal correctly with Lead Time in General Supply Chains
dc.creator.none.fl_str_mv Martín Romero, Maria Pilar
author Martín Romero, Maria Pilar
author_facet Martín Romero, Maria Pilar
author_role author
dc.contributor.none.fl_str_mv Matsukawa, Hiroaki
dc.subject.none.fl_str_mv Business management BM
Empreses -- Direcció i administració
Àrees temàtiques de la UPC::Economia i organització d'empreses
topic Business management BM
Empreses -- Direcció i administració
Àrees temàtiques de la UPC::Economia i organització d'empreses
description In the new global economy, the inventory control has become a priority for the supply chain management. Safety stock is the sole way to fight against the demand and the supply uncertainty, so determining the amount of it that must be kept along the network to holistically minimize the risk of disruption while maximize the profit is a critical issue. For the supply side, the focus is held in the lead time variability which can significantly vary depending on the part of the supply chain or new inconvenient facts could relevantly affect the lead time. Even so, developed models have forced to assume a certain value or a distribution for the lead time, yet this is risky. Historical data is often unreliable, not available or insufficiently representative. Therefore, a new model based on the Guaranteed Service approach and combined with robust optimization techniques is proposed, working with the lead time volatility without assuming any specific distribution. Interesting features arise from the new model such as the smooth tractability of the problem, the facile computational skills required or the lack of resources needed. This approach has been formulated and tested, as well as the Guaranteed Service when a distribution is assumed for the lead time and the original model. Then, the performance of the three of them has been compared in order to find the correct way to deal with uncertain lead time. Finally, the Robust Guaranteed model benefits promise better security to companies and it also provides a powerful tool to manage the risk from the supply side.
publishDate 2017
dc.date.none.fl_str_mv 2017
2017-03-01
2017
2017-11-16
dc.type.none.fl_str_mv master thesis
http://purl.org/coar/resource_type/c_bdcc
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/110790
url https://hdl.handle.net/2117/110790
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universitat Politècnica de Catalunya
publisher.none.fl_str_mv Universitat Politècnica de Catalunya
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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