July, 1–15ĮxpertGroup (2016) Obsolescence Management Final Report. ĭahlstedt ÅG(2001) Requirements interdependencies–a research framework.
#Sigmaplot version 11 rarefaction software
Engineering and managing software requirements. ĭahlstedt ÅG, Persson A (2005) Requirements interdependencies: state of the art and future challenges. Paris-Saclay University, USA ( PhD thesis)Ĭlarkson PJ, Simons C, Eckert C (2004) Predicting change propagation in complex design. ISBN: 978-4-2īoissie K (2019) Méthodes et outils pour la maîtrise de risques en ingénierie de l’obsolescence dans un contexte incertain: application à un équipementier automobile.
#Sigmaplot version 11 rarefaction series
Wiley, wiley series in systems engineering and management edition.
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Accessed īartles B, Ermel U, Pecht M, Sandborn P (2012) Strategies to the prediction, mitigation and management of product obsolescence. After a discussion of the results obtained, the paper ends with the definition of future research pathways to ease the use of probabilistic inference tools for the exploitation of the proposed models.Ġ1net (2006) Chipset : le chef d’orchestre du pc. These proposals are then illustrated through an example of a monitoring unit for a perfume bottle packaging line. Second, we propose descriptive and mathematical models of obsolescence and rarefaction propagation which allow to describe the likelihood of this propagation through the architecture of the system via two types of identified links, namely dependency and jump-up/jump-downs. First, it contributes to the concepts of obsolescence and rarefaction. In fact, even if the obsolescence or rarefaction propagation is real and commonly accepted, there are no models describing its mechanisms. The objective of this research work is to propose models to describe such propagation and to understand its principles. Understanding the propagation mechanisms can greatly contribute to obsolescence resilient design, but also to obsolescence management enabling a more effective determination of the scope of impact of actual or predicted obsolescence. These consequences can cascade through the system architecture. The consequences of an obsolete entity must be minimised as they may have impacts, among others, on system characteristics such as availability or maintainability. Obsolescence must be taken into account, analysed and resolved effectively as it can lead to temporary or permanent stoppage of a system or make it impossible to repair it.
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A component is considered obsolete when it is no longer manufactured or requested. All systems are likely to be affected by obsolescence.