Preface to Volume 20(1)
The original publication is available at http://orion.journals.ac.za/pub
At the 33rd ORSSA conference held in Pretoria, in September 2003, the management team of ORiON underwent a restructuring. Jan van Vuuren (of the Department of Applied Mathematics at Stellenbosch University) was elected editor of ORiON in the place of Paul Fatti, who stepped down after many years of excellent service to ORSSA as ORiON editor. In September 2004, Stephan Visagie (of the Department of Logistics at Stellenbosch University) was elected business manager of ORiON in the place of Wim Gevers, who is currently president of ORSSA and who has done a sterling job as business manager of ORiON over the years. We would like to thank Paul Fatti and Wim Gevers for the significant time and effort that they have poured into ORiON over many years. However, they will not be leaving the management team of ORiON; both have accepted an invitation to remain on in the capacity of associate editors, and they are also willing to advise us on management issues surrounding ORiON, based on their many years of experience.