1,721,067 research outputs found
Spare parts classification and inventory management in durable goods industries. An empirical case study.
No full textSPARE PARTS CLASSIFICATION AND INVENTORY MANAGEMENT: A CASE STUDY
No full textThe aim of this paper is to propose and discuss a hierarchical multi-criteria spare parts classification method developed for inventory management purposes and tested through an intensive case study in an Italian household appliances manufacturing company. In particular, the classification scheme under concern is built on the basis of several key dimensions in an almost hierarchical fashion, resulting in 12 different classes of spare parts, for which varying forecasting and inventory methods are proposed and tested. The results of our
simulation study demonstrate the reduction of the total logistics costs by about 20% whilst the service target level is achieved for each of the classes. Even more importantly, the proposed approach is simple and straightforward enough to be understood by company managers, thus increasing the probability of its adoption (in the same or similar form) in other real world settings
Empirically-driven hierarchical classification of stock keeping units
No full textThis paper proposes a hierarchical multi-criteria classification method developed for inventory management purposes and applied in a case study of the spare parts business of a household appliance manufacturer. The classification method is built on the basis of SIX dimensions, resulting in 12 different classes of spare parts, for which differentiated forecasting and inventory policies are proposed and tested. The results of our simulation study demonstrate the reduction of the total logistics costs by about 20% whilst still achieving the specified target service level for each class. Even more importantly, the proposed approach is simple enough to be understood and applied by company managers, thus increasing the probability of its adoption (in the same or similar fashion) in other real world setting
Demand Management by Aggregation: The Case of Spare Parts
No full textDemand management is a hierarchical process encompassing various levels of decision making. It spans from inventory control at the individual order line level to strategic planning. Aggregation offers a distinct opportunity to improve demand management practices, which essentially rely upon a combination of information along three dimensions: products, customers and time. Product and customer aggregation have been extensively addressed in the pertinent academic literature and equally considered by practitioners and software package developers. However, neither the time dimension nor the combined effects of aggregation across the three dimensions have been adequately studied and empirical evidence in this area is lacking. In this paper, we consider empirically the effects of aggregation on demand management. An extensive dataset composed of 18,937 series related to 2,422 stock keeping units (SKUs) is utilised for this purpose and the simulation structure allows the assessment of 27 realistic aggregation scenarios. Our work emphasises the case of spare parts where the intermittent nature of demand renders aggregation a natural strategy to reduce dispersion and increase predictability. The results allow insights to be gained on the effects of aggregation and tangible suggestions are being made to demand planners. The implications of this work for the theory and practice of OM are explicitly addressed and we conclude with an extensive discussion on the next steps of research in this are
Spare parts inventory management. A literature review and directions for future research
No full text
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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