Requalifikation in der Lieferkette der Serienproduktion

2017 ◽  
Vol 58 (4) ◽  
pp. 20-25
Author(s):  
Carl-Gustaf Kligge ◽  
Lena Böck

In diesem Beitrag geht es um ein Klassifizierungsmodell für Maßnahmen, die der Sicherstellung des in der Serienproduktion erreichten Qualitätsstandards dienen. Der Fokus richtet sich dabei nicht auf die eigenen Prozesse, sondern auf die Vorproduktion in der mehrstufigen Lieferkette. Bei qualitätssichernden Maßnahmen für Vorprodukte von technischen Serienprodukten erscheint es im Hinblick auf die Vielfalt und Heterogenität der Zulieferer unabdingbar, eine Priorisierung der Maßnahmen nach Aufwand/Nutzen-Aspekten vorzunehmen, ansonsten würde die Umsetzung an der Komplexität sowie an der mangelnden internen und externen Akzeptanz scheitern. So soll hier ein praxiserprobter Ansatz vorgestellt werden, wie die im Einzelnen festzulegenden Maßnahmen nach Aufwand/Nutzen-Kriterien systematisch kategorisiert werden können. Dabei sollen hier nur Anregungen gegeben werden, denn ein konkretes Konzept und detaillierte Maßnahmen sind branchenspezifisch und unternehmensindividuell auszuarbeiten. This article demonstrates an approach for the classification of measures that shall ensure the required quality standards in the multi-stage supply chain. In the case of quality-assurance of intermediate products of series-produced goods, it appears to be indispensable to prioritize the measures according to their cost and benefit aspects, given the multitude and heterogeneity of the suppliers. Keywords: qualitätssicherung, qualitätsniveau, maßnahmenpriorisierung, implementierungsaufwand, automatisierungsgrad

2018 ◽  
Vol 77 (4) ◽  
pp. 211-217 ◽  
Author(s):  
P. N. Pulatov

Current geopolitical and economic conditions for the functioning of railway transport in most post-Soviet states are such that it is extremely difficult to provide required quality of transport services and break-even operations at high expenses for maintaining the railway infrastructure and rolling stock. Dynamics of transportation of the Tajik Railway (TSR) is shown, which displays that most of its sections are classified as low-intensity ones. The paper proposes methodical principles, setting and qualitative analysis of the task of rationalization of operational work and organization of car flows for international transportation, taking into account the specifics of the Tajik Railway. There is a problem of complex maintenance of the efficiency of operational work in modern conditions based on the synthesis of the tasks of self-management (rational internal operational technology of the Tajik Railway) and coordination tasks (technological interaction with railway administrations of other states). Author substantiated the necessity of solving this problem. Proposed classification of technological restrictions and controlled variables in the performance of transport takes into account methods for changing external conditions for the functioning of the railway landfill and methods for increasing internal efficiency of its operation. The search for the solution of the problem involves direct search of variants along its ordered set with clipping of groups of variants that do not correspond to constraints, with the subsequent finding of compromise control over a set of effective alternatives.


Author(s):  
Mohammed Alkahtani ◽  
Muhammad Omair ◽  
Qazi Salman Khalid ◽  
Ghulam Hussain ◽  
Imran Ahmad ◽  
...  

The management of a controllable production in the manufacturing system is essential to achieve viable advantages, particularly during emergency conditions. Disasters, either man-made or natural, affect production and supply chains negatively with perilous effects. On the other hand, flexibility and resilience to manage the perpetuated risks in a manufacturing system are vital for achieving a controllable production rate. Still, these performances are strongly dependent on the multi-criteria decision making in the working environment with the policies launched during the crisis. Undoubtedly, health stability in a society generates ripple effects in the supply chain due to high demand fluctuation, likewise due to the Coronavirus disease-2019 (COVID-19) pandemic. Incorporation of dependent demand factors to manage the risk from uncertainty during this pandemic has been a challenge to achieve a viable profit for the supply chain partners. A non-linear supply chain management model is developed with a controllable production rate to provide an economic benefit to the manufacturing firm in terms of the optimized total cost of production and to deal with the different situations under variable demand. The costs in the model are set as fuzzy to cope up with the uncertain conditions created by lasting pandemic. A numerical experiment is performed by utilizing the data set of the multi-stage manufacturing firm. The optimal results provide support for the industrial managers based on the proactive plan by the optimal utilization of the resources and controllable production rate to cope with the emergencies in a pandemic.


Author(s):  
Khuu Thi Phuong Dong ◽  
Takashi Fritz Matsushi ◽  
Nguyen Minh Duc ◽  
Nguyen Thi Ngoc Hoa ◽  
Yoko Saito ◽  
...  

2017 ◽  
Vol 10 (2) ◽  
pp. 205979911770312
Author(s):  
Elizabeth Reis ◽  
Paula Vicente ◽  
Álvaro Rosa ◽  
Catarina Marques

The Portuguese Population and Housing Census is carried out every 10 years by Statistics Portugal. In the Census 2011, a new tool was developed to assist the Quality Assurance system in order to make the monitoring of fieldwork operations more efficient and thus diminish the uncertainties that could cause coverage error in the results. This tool, named as Map of Alert, presents a three-level typology of alert that ensures advance knowledge of the potential risk of each freguesia’s failure to meet the quality standards defined for the enumeration process. This article describes the methodological process that guided the development of the Map of Alert and presents the Map itself.


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