6 documents found, page 1 of 1
Aplicação do Lean Seis Sigma no Setor do Turismo: Um estudo de caso na Indústri...
ANTUNES VAZ, PAULO JOAQUIM; Rocha, Sílvia; Reis, Marco S.; Silva, Cristóvão; Vaz, MariaNum ambiente cada vez mais competitivo, fatores como a eficiência, a qualidade de produtos, processos e serviços, assim como a satisfação de clientes, são, cada vez mais determinantes para o sucesso de qualquer organização. Para atingir estas vantagens competitivas, iniciativas de Qualidade como o Lean e o Seis Sigma têm revelado ser importantes estratégias de negócio em muitas indústrias em todo o mundo. No en...
POLC-A: an assessment of POLCA’s authorization element
Thürer, Matthias; Fernandes, Nuno O.; Stevenson, Mark; Silva, Cristóvão; Silva, Sílvio do CarmoPOLCA (i.e. Paired-cell Overlapping Loops of Cards with Authorization) is a card-based production control approach developed to support the adoption of Quick Response Manufacturing. POLCA’s control mechanism is unique since it combines a card-based element (the paired cell overlapping loops of cards) with a higher-level Material Requirements Planning system for release authorization. POLCA has been applied in p...
A comparison of production control systems in a flexible flow shop
Silva, Cristóvão; Reis, V.; Morais, A.; Brilenkov, I.; Vaz, J.; Pinheiro, T.; Neves, M.; Henriques, M.; Varela, Leonilde; Pereira, G.Production control in make-to-order must address the companies’ need for short delivery times and on-time deliveries. Several production control systems may be used to meet these needs. This paper presents a simulation study to evaluate the delivery performance of the TKS, GKS and POLCA production control systems, in the context of a make-to-order flexible flow shop. Since TKS is used for make-to-stock manufact...
Improving workload control order release: incorporating a starvation avoidance ...
Fernandes, Nuno O.; Thürer, Matthias; Silva, Cristóvão; Silva, Sílvio do CarmoOrder release is a key component of Workload Control - a production planning and control system that aims at balancing workloads across workstations, while ensuring the timely release of jobs (or orders) to the shop floor in order to meet due dates. Several release methods have been proposed and evaluated in the WLC literature. A major criterion to distinguish between release methods is whether they take the re...
The impact of Lean Manufacturing on environmental and social sustainability: a ...
Silva, Cristóvão; ANTUNES VAZ, PAULO JOAQUIM; Ferreira, Luis MiguelThe concept mapping methodology consists of a structured conceptualization which can be usedby groups to develop a conceptual framework which can guide evaluation or different areas: strategic planning, product development, market analysis or decision making. In this paper we describe how the concept mapping methodology, which combines a qualitative case study approach – based on interviews, focus groups and pl...
Um sistema de apoio à decisão para o planeamento da produção recorrendo ao conc...
Silva, Cristóvão