Abstract
Controlling the time synchronicity of supply processes for assembly requires a quantitative measure. An existing controlling instrument, the supply diagram, already provides an effective way of assessing the supply situation. It incorporates different key figures which allow for an evaluation of a company’s supply process coordination. However, it lacks a key figure for describing the level of time synchronicity. Therefore, a quantitative evaluation of actions to improve the time synchronicity in supply processes is not possible. Based on an existing approach of approximating the completion of full assembly orders, a key figure for describing the level of time synchronicity is developed in this article: the synchronicity factor. As this new key figure is dependent on the average number of components required for one assembly order for the regarded time period, a second measure, the relative synchronicity factor, accounts for this number and can thereby be used to compare different time periods. As the numerical calculation of the synchronicity factors is a complex problem, the possibility of applying a simple hill climbing algorithm to accurately determine the synchronicity factor for a certain supply situation is examined.





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Acknowledgments
This publication has been composed as part of research project “Network Control Technique for a Synchronous Material Supply for Assembly”, which is founded by the German Research Foundation (DFG). The authors thankfully acknowledge its financial support.
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Hund, E.C., Rochow, P., Mach, F. et al. Quantitative controlling approach of time synchronicity in convergent supply processes. Prod. Eng. Res. Devel. 10, 319–327 (2016). https://doi.org/10.1007/s11740-016-0671-x
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DOI: https://doi.org/10.1007/s11740-016-0671-x