Lot sizing method : calculating the ordering costs for Wärtsilä global logistics services
Riissanen, Verner (2020)
2020
All rights reserved. This publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited.
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-2020121728932
https://urn.fi/URN:NBN:fi:amk-2020121728932
Tiivistelmä
Opinnäytetyön tavoite on laskea ostoerään perustuvat tilauskustannukset Wärtsilä global logistics services:lle ja tutkia ja vertailla eräkoon laskentaan käytettäviä menetelmiä. Opinnäytetyön tuloksia voidaan käyttää eräkokojen optimointiin. Opinnäytetyötä voidaan myös käyttää yleisenä oppaana eräkoon laskentaan.
Opinnäytetyö koostuu kolmesta osasta. Ensimmäisessä osassa käsitellään eräkoon ja siihen liittyvien parametrien teoriaa. Toisessa osassa tutkitaan eräkoon laskentaa käytettäviä metodeja WGLS:ssä ja tilauskustannuksia ja varastointikustannuksia. Kolmannessa osassa verrataan teoriaa WGLS:än työskentelytapaan ja lasketaan tilauskustannukset.
Opinnäytetyön tuloksena huomattiin, että WGLS:än käyttämät eräkoon laskentamenetelmät ovat hyvät, mutta niitä voisi hyödyntää paremmin. Tilauskustannukset laskettiin ja uusi tilauskustannus saatiin määritettyä. The aim of this thesis is to calculate ordering costs for Wärtsilä global logistics services as well as to review the lot sizing methods used. The results of the thesis will be used to optimize the lot sizing by calculating new ordering costs and by reviewing the methods used when determining the lot sizes. Thesis can also be used as a guide to lot sizing.
Thesis consists three parts. First theorical review of lot sizing and parameters used in lot sizing calculation, ordering costs, and holding costs. Second part will focus on working ways in WGLS, the lot sizing methods used, ordering process, and ordering cost, and holding costs. In the third part of the thesis we will compare theory of lot sizing to lot sizing used in WGLS and calculate the ordering costs for WGLS.
The results of the thesis were that WGLS has a good mix of lot sizing methods, but these methods are not fully utilized since they are mostly using only one lot sizing method. Ordering costs were calculated and new value was determined.
The aim of this thesis is to calculate ordering costs for Wärtsilä global logistics services as well as to review the lot sizing methods used. The results of the thesis will be used to optimize the lot sizing by calculating new ordering costs and by reviewing the methods used when determining the lot sizes. Thesis can also be used as a guide to lot sizing.
Thesis consists three parts. First theorical review of lot sizing and parameters used in lot sizing calculation, ordering costs, and holding costs. Second part will focus on working ways in WGLS, the lot sizing methods used, ordering process, and ordering cost, and holding costs. In the third part of the thesis we will compare theory of lot sizing to lot sizing used in WGLS and calculate the ordering costs for WGLS.
The results of the thesis were that WGLS has a good mix of lot sizing methods, but these methods are not fully utilized since they are mostly using only one lot sizing method. Ordering costs were calculated and new value was determined.
Opinnäytetyö koostuu kolmesta osasta. Ensimmäisessä osassa käsitellään eräkoon ja siihen liittyvien parametrien teoriaa. Toisessa osassa tutkitaan eräkoon laskentaa käytettäviä metodeja WGLS:ssä ja tilauskustannuksia ja varastointikustannuksia. Kolmannessa osassa verrataan teoriaa WGLS:än työskentelytapaan ja lasketaan tilauskustannukset.
Opinnäytetyön tuloksena huomattiin, että WGLS:än käyttämät eräkoon laskentamenetelmät ovat hyvät, mutta niitä voisi hyödyntää paremmin. Tilauskustannukset laskettiin ja uusi tilauskustannus saatiin määritettyä.
Thesis consists three parts. First theorical review of lot sizing and parameters used in lot sizing calculation, ordering costs, and holding costs. Second part will focus on working ways in WGLS, the lot sizing methods used, ordering process, and ordering cost, and holding costs. In the third part of the thesis we will compare theory of lot sizing to lot sizing used in WGLS and calculate the ordering costs for WGLS.
The results of the thesis were that WGLS has a good mix of lot sizing methods, but these methods are not fully utilized since they are mostly using only one lot sizing method. Ordering costs were calculated and new value was determined.
The aim of this thesis is to calculate ordering costs for Wärtsilä global logistics services as well as to review the lot sizing methods used. The results of the thesis will be used to optimize the lot sizing by calculating new ordering costs and by reviewing the methods used when determining the lot sizes. Thesis can also be used as a guide to lot sizing.
Thesis consists three parts. First theorical review of lot sizing and parameters used in lot sizing calculation, ordering costs, and holding costs. Second part will focus on working ways in WGLS, the lot sizing methods used, ordering process, and ordering cost, and holding costs. In the third part of the thesis we will compare theory of lot sizing to lot sizing used in WGLS and calculate the ordering costs for WGLS.
The results of the thesis were that WGLS has a good mix of lot sizing methods, but these methods are not fully utilized since they are mostly using only one lot sizing method. Ordering costs were calculated and new value was determined.