In Novoferm’s case, the results of the preliminary study showed that a Greenfield implementation was the most likely way to achieve the company’s strategic objectives. However, the complexity of the processes – for example, in the area of production – pointed towards a Brownfield conversion being the better alternative.
Whilst the Greenfield approach means implementing SAP S/4HANA based on the SAP Best Practices, a Brownfield conversion involves converting the old ECC system – including all data, processes and custom developments – to an SAP S/4HANA system. As a result, the ECC system’s complexity is largely retained.
“In some areas, such as finance and controlling, Novoferm’s systems align very closely with the SAP Best Practices. Implementing these processes via a Greenfield approach would be the ideal solution and would help ensure the system’s future viability,” says Simone Sender del Castillo. “Elsewhere, replacing Novoferm’s proprietary in-house developments – we call them ‘Z-pearls’ – would involve risks that should not be underestimated. In those areas, it may make more sense to migrate the existing processes.”