The evolution of a production planning system: A 10-year case study |
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| Affiliation: | 1. Department of Management Sciences, University of Waterloo, Waterloo, Ont. N2L 3G1, Canada;2. College of Business, University of Southern Indiana, Evansville, IN 47712, USA;1. Chair for the Management of Digitalization and Automation - Industry 4.0; School of Business and Economics, RWTH Aachen University, 52062 Aachen, Germany;2. Workgroup Production & Logistics Networks, School of Mathematics and Logistics, Jacobs University, 28759 Bremen, Germany;1. Department of Industrial Engineering, Federal University of Sao Carlos, Rodovia Washington Luís – Km 235, Zip Code 13565-905, São Carlos, SP, Brazil;2. Department of Industrial Engineering, Universidade do Estado de Mato Grosso, Rua A S/N, Bairro São Raimundo, Zip Code 78390-000, Barra do Bugres, MT, Brazil;3. Organizational Engineering Group (Núcleo de Engenharia Organizacional – NEO), Department of Industrial Engineering, Universidade Federal do Rio Grande do Sul, Brazil;1. University of Vienna, Department for Business Administration, Oskar-Morgenstern-Platz 1, 1090 Vienna, Austria;2. European University Viadrina Frankfurt(Oder), Chair for Supply Chain Management, Große Scharrnstraße 59, 15230 Frankfurt (Oder), Germany |
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| Abstract: | This paper describes the evolution of a production planning system (PPS) from a simple work sequence generation tool to a useful, sustained scheduling system. Three stages of evolution are described. In the first stage, a Gantt chart sequencing tool was converted to a scheduler's information system. This change was driven by the need to support the scheduler's daily task. The second stage of evolution was caused by an MRP–ERP conversion. The integration and conversion increased overhead and complexity in the job task and hence the tool, including the transformation of the previously integrated dispatching/scheduling task into separate dispatching and scheduling activities. The third stage of evolution has been small continuous improvements driven by management reporting requirements. PPS was developed in 1996 and has been fully operational since January 1997. Two major insights are discussed in this paper: the implications of supporting the scheduling task versus work sequence generation, and the software design requirements for evolutionary change as the software is used in an ever-changing situation. |
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