Publication
The DDMRP replenishment model: An assessment by simulation
| dc.contributor.author | Fernandes, Nuno O. | |
| dc.contributor.author | Djabi, Suleimane | |
| dc.contributor.author | Thürer, Matthias | |
| dc.contributor.author | Ávila, Paulo | |
| dc.contributor.author | Ferreira, Luís Pinto | |
| dc.contributor.author | Silva, Sílvio C. | |
| dc.date.accessioned | 2025-12-23T11:41:13Z | |
| dc.date.available | 2025-12-23T11:41:13Z | |
| dc.date.issued | 2025 | |
| dc.description | The original contributions presented in this study are included in the article. Further inquiries can be directed to the corresponding author. | |
| dc.description.abstract | Demand-Driven Material Requirements Planning (DDMRP) has been proposed as a solution for managing uncertainty and variability in supply chains by combining decoupling, buffer management and demand-driven planning principles. A key element of DDMRP is its inventory replenishment model, which relies on dynamically adjusted inventory buffers rather than fixed stock levels. However, parameterization of these buffers often involves subjective choices, raising concerns about consistency and performance. This paper assesses the DDMRP replenishment model through discrete-event simulation of a multi-echelon, capacity-constrained production system. Two alternative formulations of the safety stock term in the red zone are compared: the original factor-based approach and a revised formula that incorporates measurable variability coefficients. While both safety stock formulations yield similar numerical results, the revised formula enhances transparency and reduces subjectivity. Assessing the impact of introducing a buffer for components in addition to a finished goods buffer further shows that the componentes buffer can reduce finished goods inventory requirements while maintaining service levels. These findings contribute to a better understanding of the DDMRP replenishment model, offering practical insights for parameter selection and supply chain design. | eng |
| dc.description.sponsorship | This work has been supported by FCT—Fundação para a Ciência e Tecnologia within the R&D Unit Project Scope UID/00319/Centro ALGORITMI (ALGORITMI/UM). | |
| dc.identifier.citation | Fernandes, Nuno O. [et al.](2025) -The DDMRP Replenishment Model: An Assessment by Simulation. Mathematics. 13, 3483. DOI: 10.3390/ math13213483 | |
| dc.identifier.doi | 10.3390/ math13213483 | |
| dc.identifier.uri | http://hdl.handle.net/10400.11/10416 | |
| dc.language.iso | eng | |
| dc.peerreviewed | yes | |
| dc.publisher | MDPI | |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
| dc.subject | Safety stock | |
| dc.subject | DDMRP | |
| dc.subject | Production planning and control | |
| dc.subject | Discrete event simulation | |
| dc.title | The DDMRP replenishment model: An assessment by simulation | eng |
| dc.type | research article | |
| dspace.entity.type | Publication | |
| oaire.citation.title | Mathematics | |
| oaire.version | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |
| person.familyName | Fernandes | |
| person.givenName | Nuno | |
| person.identifier.ciencia-id | D211-6272-AF3B | |
| person.identifier.orcid | 0000-0002-4682-1790 | |
| person.identifier.scopus-author-id | 14064512000 | |
| relation.isAuthorOfPublication | cb1c7a07-e582-476f-96f7-1ed829f55551 | |
| relation.isAuthorOfPublication.latestForDiscovery | cb1c7a07-e582-476f-96f7-1ed829f55551 |