It's already possible to take "snapshots" of the BIM as it evolves over time, using digital authoring software. When viewed as stand-alone files, these snapshots may not provide much information about workflow. However, when the files are compared automatically and continuously over time, they increase a project manager's understanding of the workflow involved, thus adding value. Kouhestani and Nik-Bakht saw an opportunity to improve BIM capability by automating an archiving and analyzing process. "We created an algorithm to make'event logs' that track changes in consecutive files," says Kouhestani. "Once we created the event logs, we used them as input for process mining."