Freight and port logistics is the largest single source of work here, and it is more interesting than it sounds. A shipment generates a chain of documents produced by different parties in different formats and different languages, each of which has to agree with the others before goods move. Most of the labour is reconciliation: reading a document, finding the corresponding entry somewhere else, and deciding whether a discrepancy is a typographical difference or a real problem. That is a good fit for a system precisely because a human doing it at three in the morning is not at their best, and it is a dangerous fit unless the system is honest about its own uncertainty. Our logistics document pipeline describes the shape we use, with the exception path as the main feature rather than an afterthought.
Publishing and media groups arrive from the opposite direction. Their problem is not throughput but recall — decades of articles, images and broadcast material where the person who knew how it was filed has retired. Retrieval systems here live or die on the metadata work nobody wants to fund, and on being able to show where an answer came from. The architecture is covered under retrieval systems.
Aviation manufacturing and the maintenance businesses around it bring configuration and compliance records with a long life and a hard traceability requirement, which is a document problem with an engineering accent.
Renewables, and offshore wind in particular, bring sensor histories, service reports and weather data that only become useful when joined. Failure prediction on rotating equipment is a genuinely well-suited application, and it is described under predictive maintenance — with the same caveat that reaches every asset-heavy project: the model is easy and the data plumbing is not.