A NIO or backup strategy in assembly planning shows an alternative way of completing processes or assemblies that were aborted in the normal process due to errors or were not completed for other reasons.
In assembly planning, an optimal production flow is always assumed at the beginning. This includes the fulfillment of qualitative, quantitative and temporal requirements for the process or assembly. Since disturbances such as quality fluctuations, material supply, machine breakdowns, etc. in practice always cause this optimal process to be disrupted, this must be taken into account in the planning stage.
NIO strategies refer to processes that take place outside of the normal process. For example, a screw that could not be tightened with the required torque becomes a problem. The component cannot and must not move on to the next process step, so it must be removed from the process chain. Outside of the normal production flow, the problem is checked and, once it has been resolved, the component may be reintroduced into the value creation process.
If this is not the case, the component can be returned to the finished state using the so-called backup strategy with more effort and less technical effort.
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