1,721,151 research outputs found
A proposal for supply-chain improvements in a luxury company
Full text linkThe fashion market is becoming more competitive in the luxury industry, mainly because of the appearance and strengthening of other industries that provide new products more consistently to its customers. This sector, marked by its two annual collections and its unique items, must become more flexible and provide a faster response to its consumer base. In this context, supply chain management is an important factor in determining the degree of competitiveness of a company. This paper proposes tools to assist in the production scheduling of a luxury industry through making its supply chain more flexible by reducing the number of items delivered before the release, thus allowing the company to react according to the sales. To achieve that, an approach to the calculation of orders based on sales forecasts and on the lead time between stores and distribution centers was developed, in addition to a tool to control the delivery of the items through better integration with the suppliers. The proposed approach reduced the number of items in the first two orders by 17 and 12%, and several delays were avoided through the utilization of the order-control tool
Testing and deploying an RFID-based real-time locating system at a fashion retailer: A case study
No full textIn this paper, the testing and deployment of an RFID-based Real-Time Locating System (RTLS) at a fashion retailer is presented. An RTLS is a combination of hardware and software systems to determine automatically and in real-time the coordinates of an object. Although this goal might be achieved with different technologies, several studies suggest the centrality of RFID as a locating system technology. Nonetheless, the literature presents a lack of studies that investigate on real applications of RTLS in retailing. To fill this gap, our study reports the testing and deploying phases of an RFID RTLS at the Diffusione Tessile store in Pomezia, Rome (Italy). The selected store is, at present, the biggest of the whole firm in terms of number of garments exposed. During a recent refurbishment of the store, the company installed a RTLS composed of 254 antennas linked through multiplexers to 13 readers. The RTLS was designed after an extensive lab-testing phase, and it is provided with two different algorithms for locating garments on the sales floor area. A first installation of the system was finished in early 2015, but this first implementation resulted in some discrepancies amongst different antennas and some corrections were made. In autumn 2015, the system was then tested for the first time in the field: the results of all the testing phase are reported in the paper. This case study sparks interest and suggests several ideas for a deployment of RTLS in a fashion store. Also, and maybe more important, the points of strength and weakness of our implementation could help practitioners and researchers to maximise the benefits of future RTLS implementations in the fashion industry and discover new prospective research topics within this sector
Selezione clonale del Mammolo e Vermentino bianco.
No full textLo studio ha preso in esame due vitigni di limitata estensione colturale, ma tradizionalmente utilizzati in Toscana. Nella scelta dei criteri da applicare per la selezione clonale sono state tenute presenti le esigenze generali della moderna viticoltura, sul piano sia agronomico, sia biologico. Per entrambi i vitigni sono stati inizialmente individuati numerosi presunti cloni di cui solo una parte è stata sottoposta alle indagini ampelografiche, agronomiche e tecnologiche. La conclusione del lavoro ha consentito di individuare per il Mammolo e il Vermentino 20 e 10 presunti cloni rispettivamente suscettibili di possibile futura coltivazione
Il Sangiovese nell'ambito dei vitigni storici toscani premoltiplicati da TOS.CO.VIT
No full textL’evoluzione dell’attività di selezione clonale del “Sangiovese” dalla fine degli anni ‘70 fino ai giorni nostri, attraverso una fattiva collaborazione tra il Dipartimento di Ortoflorofrutticoltura dell’Università di Firenze, insieme al Dipartimento di Coltivazione e Difesa delle specie legnose “G. Scaramuzzi“ dell’Università di Pisa ed ad altre Istituzioni pubbliche e private, si è orientata sempre di più verso parametri agronomici incentrati sulla bassa produzione a pianta, scarsa vigoria, e grappoli tendenzialmente piccoli e spargoli. Tali sforzi, si sono fino ad oggi concretizzati, in una ampia e quanto mai qualificata disponibilità di materiale clonale geneticamente
corrispondente alle moderne esigenze di una viticoltura di qualità. Inoltre, la costituzione di TOS.CO.VIT. risalente al 29 gennaio del 2003, garantisce poi, una adeguata valorizzazione di tale materiale selezionato in Toscana. Nel presente lavoro sono stati messi a confronto in una veste grafica, con il solo obiettivo di dare informazioni di carattere puramente orientativo, i cloni presenti all’interno del Nucleo di premoltiplicazione. Malgrado la variegata rappresentazione grafica dei materiali oggetto di confronto, questa relazione intende, in primo luogo, porre l’attenzione
sulla sempre più pressante necessità di effettuare nuove comparazioni, sia nel medesimo
ambiente che in areali differenti, di tutto il materiale selezionato nel corso del tempo, al fine di
poter fornire, all’operatore finale, un compendio sempre più dettagliato del materiale genetico oggi disponibile per la coltivazione della vite secondo moderni criteri di qualità
Anticipating critical events to improve the remote scheduling of coordinated production.
No full textthis paper proposes a methodology to improve the time-performance of distributed simulation based
on the HLA architecture using commercial simulators. In the context of industrial production, for instance, the
timing of information transfer among federate simulators becomes an important issue whenever production
control and scheduling are very closely linked. In such a context the re-scheduling of an existing production plan,
as determined for instance by a rush order, is usually decided upon at the control level in the hierarchy of
federates; however it cannot be communicated to the different federate plants until a status/parameter update is
instantiated and established. The study presented in this paper specifically focuses on the impact of machine
failures at the federate plant level. The random nature of the failure processes associated to the machines of the
federate production plants makes it difficult to establish when such occurrences may take place: therefore the
events driving the exchange of state variables among federates cannot be set with certainty ahead of time. This
research proposes a one-off methodology to statistically determine when critical events, such as machine
failures, are likely to occur. Based on such information it is possible to intersperse additional events among those
associated to the usual production/process milestones and thus significantly reduce delays in the transfer of
critical status parameters among federates and waste of simulated time. Applications are presented to relate these
time-performance benefits to measurable improvements in production performance
Proposal of a framework for the evaluation and comparison of production schedules
No full textProduction Planning and Control (PP&C) has been increasingly becoming a critical activity, since competition in the markets is leveraging on a multitude of factors ranging from product quality, to delivery times and pre-sales and after-sales services. Among PP&C activities, scheduling decisions are the final temporal decision-making phase where plant and supply chain managers have to act for fixing any short noticed variations and maintaining satisfying overall production system performances, "assigning scarce resources to competing activities over a given time horizon to obtain the best possible system performance". in particular, lot of work has been done in the past (and is currently on-going) on Performance Measurement for manufacturing systems at a strategic level. However, at a more operative scheduling level, a comprehensive approach seems to be still missing. in order to provide an answer to this main issue, the paper illustrates the main distinctive features of the PMS-ESS, a performance measurement system for the evaluation of production scheduling systems, and its application in a test case. Copyright © 2005 IFAC
New Product Development Process in Fashion Industry: Empirical Investigation within Italian Companies
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