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The purpose of this study is to investigate the supply and productivity improvements derived from implementing manufacturing resource planning (MRP II) practices.

The approach is a case study in a Greek aerospace company, using Hellenic Aerospace Industry, SA (HAI). The closed loop business operating system, MRP II is recognized as being an effective management system that has an excellent planning and scheduling capability, which can offer an increase in customer service, significant gains in productivity, higher inventory turns and reduction in material cost.

The implementation has included setting clear goals, following a formal implementation plan, using a project steering committee and project teams. However, some aspects such as limitations by Greek legislation, constraints in hardware, incomplete education and training of the personnel and the BOM data accuracy are discussed in the context of HAI Productivity and supply issues resulting from the implementation process are reviewed.

Although, the use of the MRP II system in industrial developed countries is extensive, in Greece it is still in its infancy.

This study contributes to the literature on MRP II in the Greek aerospace industry.