Robotic process automation (RPA), which supports the efficiency of simple or standardized tasks in companies, is evolving further with the integration of artificial intelligence (AI). A representative example of this is AI-based document understanding technology (DU). In the past, it supported user tasks by extracting data from structured documents, but now, it can extract unstructured data thanks to document understanding technology, significantly expanding the scope of task automation. RPA is software that performs work processes on digital devices such as PCs, in place of humans.