The aerospace business has in some cases been characterised as "too reduced volume for comprehensive automation". On the other hand, Industry 4.0 principles have been investigated by a number of aerospace businesses, and technologies have been produced to boost productiveness where by the upfront cost of automation cannot be justified. https://dores-nos-nervos53107.creacionblog.com/31007955/the-5-second-trick-for-lever-4-0