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Hellberg, Roland
Publications (5 of 5) Show all publications
Abid, M., Bengtsson, L., Hellberg, R. & Dabhilkar, M. (2012). Factors affecting global supply chain design. In: : . Paper presented at 21st Annual IPSERA conference, Naples, Italy, April 1-4..
Open this publication in new window or tab >>Factors affecting global supply chain design
2012 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Due to the limited existing knowledge pertaining to the factors which govern localization of operations and capabilities in a global supply chain, the purpose of the paper is to find out which factors and how they jointly affect the design of global supply chains. The relevant literature is reviewed and a concept matrix is developed. Five companies were selected in order to illustrate the issues of global supply chain design. Among them, three companies are considered to have efficient supply chain and less complex products, while the two others are considered to have responsive supply chain and more complex products. The issues discussed with the selected companies cover global sourcing, challenges, technological advancement and issues related to management control. The study identifies about fifty factors that affect global supply chain design, and specifically how theses relate to design decisions on location of factories and production, supplier selection and development, distribution of products and organisation of interfaces along the supply chain. The discrepancies between theory and practice as well as the implications for further research are discussed.

Keywords
Global sourcing, global supply chain design, factors
National Category
Mechanical Engineering
Identifiers
urn:nbn:se:hig:diva-12927 (URN)
Conference
21st Annual IPSERA conference, Naples, Italy, April 1-4.
Available from: 2012-09-18 Created: 2012-09-17 Last updated: 2018-12-03Bibliographically approved
Abid, M., Bengtsson, L., Hellberg, R. & Mandar, D. (2012). Global supply chain design: Building a decision model. In: : . Paper presented at 19th International Annual EurOMA conference, Amsterdam, Netherlands, 1-5 July 2012..
Open this publication in new window or tab >>Global supply chain design: Building a decision model
2012 (English)Conference paper, Published paper (Refereed)
Abstract [en]

The knowledge pertaining to the factors, which govern localization of operations and capabilities in a global supply chain, is limited. The purpose of the paper is to find out which factors and how they jointly affect the design of a global supply chain. The relevant literature is reviewed and a concept matrix is developed. The study identifies 30 factors that affect a global supply chain design and specifically how theses relate to the design decisions on location of factories and production, supplier selection and development, distribution logistics, organisation of interfaces/enterprise information infrastructure along the supply chain and human resource development. The decision model is developed and the description of the model is done with the help of an example (location of a factory) by using the Analytical Hierarchy Process (AHP) (Saaty, 1990).  

Keywords
global supply chain design, factors, decision model
National Category
Mechanical Engineering
Identifiers
urn:nbn:se:hig:diva-12925 (URN)
Conference
19th International Annual EurOMA conference, Amsterdam, Netherlands, 1-5 July 2012.
Available from: 2012-09-18 Created: 2012-09-17 Last updated: 2018-12-03Bibliographically approved
Hellberg, R. (2011). Intelligent Mail, an international revolution?. Paper presented at NOFOMA 2011, Harstad, Norway, June 9-10, 2011.
Open this publication in new window or tab >>Intelligent Mail, an international revolution?
2011 (English)Conference paper, Published paper (Refereed)
Abstract [en]

The postal sector, the largest distribution network in the world, facing a decreasing letter volume due to both deregulation of the market and to substitution from electronic formats. One effect of the deregulation is that new operators are established and take market shares. The electronic media in form of e-mail and webpage’s, has taken a large part of the letter market. One way to meet this keener competition is to make distribution of mail more valuable and cost-effective for both the sender and the receiver by adding new options to the mail. In most countries there is only one operator who has the right to act as universal service provider in the meaning of UPU (Universal Post Union), called designated postal operator (DPO). Many of these DPO are developing a concept called Intelligent Mail to defense theirs market share.

 

The purpose of this paper is to give a broad picture of intelligent mail as a concept and also to what extent this new concept will be able to use in international letter distribution within the postal sector.

 

The data is mainly collected from different main operators through interviews and compared with written information.

 

There are mainly to findings. The first is that the content and meaning of Intelligent Mail differ a lot from operator to operator. The second finding is that systems needed to support options in the concept are not universal within the postal sector and therefore very hard to use in an international context.

 

The contribution of this paper is to give a deeper understanding of the Intelligent Mail concept and why this concept not is useful for international distribution within the postal industry today.

Keywords
International distribution, intelligent mail, mail development, transportation system, international cooperation
National Category
Transport Systems and Logistics
Identifiers
urn:nbn:se:hig:diva-10464 (URN)
Conference
NOFOMA 2011, Harstad, Norway, June 9-10, 2011
Note
Abstract accepted, invited to write a full paper. Available from: 2011-09-27 Created: 2011-09-27 Last updated: 2018-03-13Bibliographically approved
Hellberg, R. (2011). Successful design of warehouse layout for an extremely volatile market founded major increased market share. In: : . Paper presented at NOFOMA 2011, Harstad, Norway, June 9-10, 2011. (pp. 1).
Open this publication in new window or tab >>Successful design of warehouse layout for an extremely volatile market founded major increased market share
2011 (English)Conference paper, Published paper (Refereed)
Abstract [en]

The purpose of this paper is to give a successful example of how and why a change in warehouse design, where different picking methods are combined and supported by an intelligent warehouse management system to meet a very huge variation in volume with very short delivery time, have founded a major increasing in the market share from 22 to 50 %.

This research was done as a longitudinal study from 1993 to 2010, where one company was followed on daily base 1993-2000 and for the last 10 years followed on yearly base.

At the end of the study (2010) the company distributed over 13,000,000 items (books) covering 35,000 titles. The order size varies from 1 to over 5000. In addition, the company distributes over 2,600,000 items for book clubs and online shopping, as well as providing a wide range of additional services in the form of special packaging solutions, mechanical packing, mailing information, etc. The delivery time must be within 15 min in some cases but normally order taken before 17:00 are dispatched the next day. The must books are not wrapped.

There are mainly to findings. The first finding is the importance to really understand the variation in volume over time and to design the warehouse and processes after this. Many similar companies have tried to meet the marked demand with warehouse automation, but this case show the importance to avoid automation to keep maximum flexibility to be able to meet extreme volume variation with very short delivery times.

The second finding is that the intelligence in meaning of supporting IT-systems both must handling different market demands and support different order fulfillment processes. To meet the customer’s different requirements with short delivery times and huge variation in volume the successful order fulfillment process includes lot of different picking methods.

A deep and long time study of a “best practice” case of a third party logistic providers that have designed the warehouse in order to meet an extremely volatile market.

Keywords
Warehouse layout, short delivery time, extreme variation in volume, third party logistics, logistics services
National Category
Transport Systems and Logistics
Identifiers
urn:nbn:se:hig:diva-10465 (URN)
Conference
NOFOMA 2011, Harstad, Norway, June 9-10, 2011.
Note

Abstract accepted, invited to write a full paper.

Available from: 2011-09-27 Created: 2011-09-27 Last updated: 2018-03-13Bibliographically approved
Hellberg, R. (2011). Successful redesigned warehouse operations in order to meet an extremely volatile market. In: : . Paper presented at 2011 POMS Annual Conference, Reno, Nevada, U.S.A, April 29 - May 2, 2011 (pp. 1).
Open this publication in new window or tab >>Successful redesigned warehouse operations in order to meet an extremely volatile market
2011 (English)Conference paper, Published paper (Refereed)
Abstract [en]

A study of a third party logistic provider that has continuously redesigned theirs warehouse operations in order to meet an extremely volatile market with very short delivery times and large order size fluctuation. This research was done as a longitudinal study from 1993 to 2010, where the company was followed on daily base 1993-2000 and for the last 10 years on yearly base.

 

The paper explain how an unique combination of many different picking methods, flexible layout and an intelligent warehouse management system, have founded a major increase of the providers market share from 22 to 50 %.

 

Many similar companies have tried to meet the marked demand with warehouse automation, this case show the importance to avoid automation to keep maximum flexibility to be able to meet extreme volume variation with very short delivery times. Instead investments are turned into intelligence of the IT-system which support different fulfillment processes.

 

Keywords
Volatile demand, Warehouse operations, Combined picking methods, Third party provider, Intelligent warehouse system
National Category
Transport Systems and Logistics
Identifiers
urn:nbn:se:hig:diva-10457 (URN)
Conference
2011 POMS Annual Conference, Reno, Nevada, U.S.A, April 29 - May 2, 2011
Note

Abstract accepted, invited to write a full paper.

Available from: 2011-09-27 Created: 2011-09-27 Last updated: 2018-03-13Bibliographically approved
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