Deep Learning based Key Information Extraction from Business Documents: Systematic Literature Review

However, to this day, physical paper documents still play an important role in business operations, as they are a key means of communication related to transactions both within and between organizations [120]. The processing of such documents is an essential yet time-consuming task that offers a high potential for automation due to the high workload involved as well as the critical nature of information transfer between different information systems [19, 130]. At the same time, it can be observed that the ongoing digital transformation of business operations is leading to an increase in the digital processing of documents. This trend reinforces the need - but also the potential - for automated document processing, as more and more documents are available in digital form [113].